Solid State Physics - Science topic

Background and Objectives: The activities of Professor Dmitriy Alexandrovich Usanov, Honored Scientist of the Russian Federation, Honored Inventor of the Russian Federation, at Saratov State University (SSU) were multifaceted, distinguished by high professionalism, a rare harmonious combination of scientific achievements and relevant applied soluti...

With the advent of the 21st century, the demand for computing power and numerical models has led to an integrative approach of using Machine Learning methods in physical sciences, specifically in Statistical Physics. The paper outlines the foundational principles of Statistical Physics and Machine Learning, bridging the gap between these discipline...

Peierls transition that modifies electronic band structure has attracted intensive attention in solid state physics. In the present work, we report that a photonic analog of Peierls transition has been observed in a 1-D triangular metal diaphragm array, where the photonic bandgap structures have been designed at will by adjusting periodically metal...

The origin of magnetic anisotropy in magnetic compounds is a longstanding issue in solid state physics and nonmagnetic ligand ions are considered to contribute little to magnetic anisotropy. Here, we introduce the concept of ligand-driven magnetic anisotropy in a complex transition-metal oxide. We conducted X-ray absorption and X-ray magnetic circu...

The origin of magnetic anisotropy in magnetic compounds is a longstanding issue in solid state physics and nonmagnetic ligand ions are considered to contribute little to magnetic anisotropy. Here, we introduce the concept of ligand driven magnetic anisotropy in a complex transition-metal oxide. We conducted X ray absorption and X ray magnetic circu...

As the young scientist being only 72 years old I had decided finally to publish my way to cope with the inevitable fact of dying one day. The genetics shows that until we will not learn how to control the telomer shortening phenomenon [1] we will be prone to dye being ca 120 years old. But as the scientist with over 47 years of doing research, afte...

Background. Nanoscale conductors, in particular graphene nanoribbons and carbon nanotubes, are increasingly being used in nanoelectronics and related arears of the nanoindustry. In them, there are not only effects related to electrical conductivity, but also other transfer phenomena, primarily thermoelectric phenomena. Materials and methods. The ob...

Background. Nanoscale conductors based on graphene nanoribbons and carbon nanotubes appear to be promising elements of nanoelectronics devices. Of practical interest are not only their high electrical conductivity, but also high thermal conductivity. Moreover, unlike electrical conductivity, the thermal conductivity of these nanoconductors is due n...

Layer-by-layer assembly of van der Waals (vdW) heterostructures underpins new discoveries in solid state physics, material science and chemistry. Despite the successes, all current 2D material (2DM) transfer techniques rely on the use of polymers which limit the cleanliness, ultimate electronic performance, and potential for optoelectronic applicat...

In this article, we give an overview over recent developments in the mathematical treatment of topological insulators using coarse geometry.

Background. Graphene and boron nitride nanoribbons of hexagonal syngony are promising materials for use in nanoacoustics and nanoplasmonics as transmission lines of the terahertz frequency range. Meanwhile, their nanoscale width leads to a number of quantum-dimensional effects. There are resistances, inductances and capacitances per unit length whi...

Atomically thin layers exfoliated from magnetic van der Waals layered materials are currently of high interest in solid state physics. VOCl is a quasi-two-dimensional layered antiferromagnet which was recently synthesized in monolayer form. Previous theoretical studies have assumed the high-temperature orthorhombic lattice symmetry also in the low-...

This is Appendix of series lecture on the TSC theory. We have reported anomalous enhancement of 3D fusion rate as 26 orders of magnitude (cf. random collision reaction rate) in the low energy d-beam implantation experiment to TiD target in 1998-2003. We revisit the charged particle spectroscopy data by the SSBD E-delta-E counter telescope. Underlyi...

The thesis entitled "Localized Treatment of Organic Components by Induced Photocatalytic of Titanium Dioxide Nanostructures" was accepted in partial fulfillment of MSc degree in Solid State Physics

In our recent work, we study three fractional order nonlinear evolution equations by sine-cosine method, a class of traveling wave solutions with significant physical structures are obtained. The solutions include periodic solutions, soliton solutions, bell shaped solutions with the estimated values of involved parameters. The significance of conte...

This Ph.D. thesis is an attempt to apply ML approaches to selected problems of solid state physics and biophysics. The first part is devoted to phase transitions in physical models - the problem that has been known and studied from the beginning of condensed matter and statistical physics. Despite many efforts that have been put into defining indic...

The pursuit of exotic phases of matter outside of the extreme conditions of a quantizing magnetic field has been a long standing quest of solid state physics. Recent experiments have observed spontaneous valley polarization and fractional Chern insulators (FCIs) in zero magnetic field in twisted bilayers of MoTe$_2$, at partial filling of the topol...

Non-linear evolution equations play a prominent role in describing a wide range of phenomena in optical fibers, fluid dynamics, electromagnetic radiation, plasma and solid state physics. An important category of non-linear evolution models that characterizes shallow wave phenomena are the Korteweg-de Vries (KdV) models. In this regard, time-fractio...

Borophene research in solid state physics, material science, chemistry and nanotechnology has blossomed after the first 2-D boron sheet (borophene) was fabricated on silver surfaces in 2015. Owing to its distinct physical and chemical characteristics, borophene has a large variety of potential applications. The work on borophene is described in thi...

Peierls transition that modifies electronic band structure has attracted intensive attention in solid state physics. In the present work, a photonic analog of Peierls transition has been observed in a 1-D triangular metal diaphragm array, where the photonic bandgap structures have been designed at will by adjusting periodically the metal diaphragm...

Crystal structure predictions based on first-principles calculations have gained great success in materials science and solid state physics. However, the remaining challenges still limit their applications in systems with a large number of atoms, especially the complexity of conformational space and the cost of local optimizations for big systems....

Nowadays, the electro-electronic industry and scientific community have a great interest in improving memory devices. A candidate is the bismuth ferrite owing to the coexistence of ferroelectricity and anti-ferromagnetism at room temperature, however, a high leakage current harms their ferroelectric properties. Thus, bismuth ferrite and barium tita...

Coated and multicoated cylinder systems constitute an appealing metamaterial category, as they allow a very rich and highly tunable response, resulting from the interplay of the many different geometrical and material parameters involved. Here we derive and propose an effective medium approach for the detailed description and analysis of the electr...

The anomalous Nernst effect (ANE) is a member of the extensive family of topological effects in solid state physics. It converts a heat current into electric voltage and originates from the Berry curvature of electronic bands near the Fermi level. Recent results established the Fe$_3$Ga alloy as one of the most promising candidates for applications...

In August 2004, the Iraqi Journal of Applied Physics, abbreviated as IJAP, was established and registered with ISSN 1813-2065 as a scientific periodical sponsored and published by the Iraqi Society for Alternative and Renewable Energy Sources and Techniques (I.S.A.R.E.S.T.) in Baghdad, Iraq. IJAP was started to publish articles in nine disciplines...

Materials hosting tilted Dirac/Weyl fermions provide an emergent spacetime structure for the solid state physics. They admit a geometric description in terms of an effective spacetime metric. Using this metric that is rooted in the long-distance behavior of the underlying lattice, we formulate the hydrodynamic theory for tilted Dirac/Weyl materials...

We discuss gauge theories of scale invariance beyond the Standard Model (SM) and Einstein gravity. A consequence of gauging this symmetry is that their underlying 4D geometry is non-metric ( $$\nabla _\mu g_{\alpha \beta }\!\not =\!0$$ ∇ μ g α β ≠ 0 ). Examples of such theories are Weyl’s original quadratic gravity theory and its Palatini version....

Rarely noted paradoxes in applications of fundamental quantum relations are pointed out, with their resolution leading to emergent non-Hermitian behaviors due to boundary terms – even for closed systems and with real potentials. The role played by these non-Hermiticities on the consistency of quantum mechanical uncertainty relations is discussed, e...

Coated and multicoated cylinder systems constitute an appealing metamaterial category, as they allow a very rich and highly tunable response, resulting from the interplay of the many different geometrical and material parameters involved. Here we derive and propose an effective medium approach for the detailed description and analysis of the electr...

Welcome to the first Near-field Optical Nanoscopy Summer School, dedicated to instrumentation, methodology, data analysis, practical aspects, and application potential of scattering-type Scanning Near-field Optical Microscopy (s-SNOM), infrared nanospectroscopy (nano-FTIR) and related techniques. s-SNOM and nano-FTIR spectroscopy are cutting-edge o...

Solid state ionics is one of the key research topics of the Institute of Solid State Physics, University of Latvia since its establishment. The research direction included topics ranging from electrochromic phenomena in transition metal oxides through gas sensors and electronic nose to materials for rechargeable battery electrodes and materials for...

Percy Williams Bridgman, known for his high pressure experiment and publications in the philosophy of science, received the Nobel Prize in Physics in 1946. Although the nominators of his home institution Harvard University recognized his achievements apparent unfitness for the prize results of a lifelong incremental pursuit outside quantum physics...

Laser cooling and trapping of lanthanides has opened the possibility to carry out new experiments with ultracold dipolar gases, for example for quantum simulation of solid state physics. To identify new suitable candidates for laser-cooling, it is important to have a precise spectroscopic knowledge of the atom under consideration. Along this direct...

Due to the rapid scientific and technological development in the last decades, basic research in solid state physics, chemistry and material science has focused on objects and phenomena more and more confined in dimensions and time-scale, and well visible for the general publicity by introducing the terms “nanophysics, nanoscience, nanomaterials, e...

Polar sea ice is a critical component of Earth’s climate system. As a material it is a multiscale composite with temperature dependent millimeter-scale brine microstructure, and centimeter-scale polycrystalline microstructure which is largely determined by how the ice was formed. The surface layer of the polar oceans can be viewed as a granular com...

Investigation of phase transitions related to changes in the crystalline structure of solid state materials represents an extremely important area of condensed mater physics, since they lead to reconfiguration of all the solid state physical properties, including electrical, optical, vibrational, elastic and mechanical properties. Hydrostatic press...

Dislocations have been subject to theoretical study for some 60 years, starting with the investigations reported by Volterra. In the last 20 years there has been a steady increase in sophistication of dislocation theory from the early almost intuitive models to current theories, which range over a large portion of continuum mechanics and solid stat...

In dieser Dissertation werden verschiedene Methoden zur Simulation der Dynamik der optischen Moden einer Fabry-Pérot-Laserdiode diskutiert. Experimentell lässt sich hierbei der Effekt des Modenrollens oder Modenhüpfens beobachten. Hier sind zu einem gegebenem Zeitpunkt nur ein oder zwei longitudinale Moden aktiv, dabei wechseln sich die Moden in ei...

In solid state physics, a bandgap (BG) refers to a range of energies where no electronic states can exist. This concept was extended to classical waves, spawning the entire fields of photonic and phononic crystals where BGs are frequency (or wavelength) intervals where wave propagation is prohibited. For elastic waves, BGs are found in periodically...

Spin-orbit coupling (SOC) drives interesting and non-trivial phenomena in solid state physics, ranging from topological to magnetic to transport properties. Thorough study of such phenomena often require effective models where SOC term is explicitly included. However, estimation of SOC strength for such models mostly depend on the spectroscopy expe...

The article demonstrates the possibility of using atomistic modeling, using the example of the molecular dynamics method, as an additional educational tool in the study of the properties of crystalline solids in laboratory work. The research was carried out with the participation of 5th year bachelor students studying in a double specialty "physics...

The article is devoted to the prospects of using virtual and mixed reality systems as a tool for introducing students into scientific activity. Attention is paid to the development of content for such systems in condensed matter physics based on the method of molecular dynamics. In this study we suggested one of the possible ways to simplify the ma...

International School of Solid State Physics, 82nd Workshop Unconventional Computing: Materials, Science, Informatics, Hardware, Software Erice, Sicily 20-26 October 2022

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Vanadium dioxide (VO2), a correlated oxide compound, is one of the functional materials extensively studied in solid state physics due to its attractive physical properties. However, the nonlinear optical response of VO2 and related all-optical applications have been paid less attention. Here, the nonlinear refractive index (n 2) and third-order no...

Interest has grown in the development of electron sources of high brightness and coherence. This study involves electron sources triggered by various effects such as laser pulses, high local static fields and vibrations. It has led to interesting results and hinted at future areas of study. Electron sources triggered by optical effect over a reduce...

In solid state physics, phase transitions can influence material functionality and alter their properties. In mechanical metamaterials, structural-phase transitions can be achieved through instability or buckling of certain structural elements. However, these fast transitions in one mechanical parameter typically affect significantly the remaining...

This paper exploits the modified simple equation and dynamical system schemes to integrate the Klein–Gordon (KG) model amid quadratic nonlinearity arising in nonlinear optics, quantum theories, and solid state physics. By implementing the modified simple equation (MSE) technique, we develop some disguise adaptation of analytical solutions in terms...

The band theory in solid state physics is one of the success stories of quantum mechanics. It explains electrical and thermal properties of solids and forms the basis of the technology of electronics. Mathematically, the problem is reduced to investigation of the Schrödinger operator with a periodic potential, and perturbations of this. Disintegrat...

It is generally agreed that the resolution of a regular quadrilateral mesh is the side length of quadrilateral cells. There is less agreement on the resolution of triangular meshes, exacerbated by the fact that the numbers of edges or cells on triangular meshes are approximately three or two times larger than that of vertices. However, the geometri...

In solid state physics, any phase transition is commonly observed as a change in the microscopic distribution of charge, spin, or current. Here we report the nature of an exotic order parameter inherent in the localized electron orbitals that cannot be primarily captured by these three fundamental quantities. This order parameter is described as th...

In solid state physics, any symmetry breaking is known to be associated with emergence of an order parameter. However, the order parameter for molecular and crystal chirality, which is a consequence of parity and mirror symmetry breaking, has not been known since its discovery. In this article, the authors show that the order parameter for chiralit...

This work is devoted to the discussion of the peculiarities of studying the optical and photovoltaic properties of plants in order to increase the effectiveness of the study of the biological potential of plants and their protection. In the article we try to analyze the validity of our conclusions, citing proven experimental methods of solid state...

Laser cooling and trapping of lanthanides has opened the possibility to carry out new experiments with ultracold dipolar gases, for example for quantum simulation of solid state physics. To identify new suitable candidates for laser-cooling, it is important to have a precise spectroscopic knowledge of the atom under consideration. Along this direct...

The Iraqi Journal of Applied Physics (IJAP) is a peer reviewed journal of high quality devoted to the publication of original research papers from applied physics and their broad range of applications. IJAP publishes quality original research papers, comprehensive review articles, survey articles, book reviews, dissertation abstracts in physics and...

The Iraqi Journal of Applied Physics (IJAP) is a peer reviewed journal of high quality devoted to the publication of original research papers from applied physics and their broad range of applications. IJAP publishes quality original research papers, comprehensive review articles, survey articles, book reviews, dissertation abstracts in physics and...

Seeking the correlation and consistency between our AHE (anomalous heat effect) data (not yet published totally) in current MHE (nano-metal hydrogen energy) experiments and the underlying dynamic solid state physics mechanism for reaction sites of 4H (or 4D)-cluster formation in the TSC theory. I have found the following conclusion. From understand...

This lecture note reviews recently proposed sparse-modeling approaches for efficient ab initio many-body calculations based on the data compression of Green's functions. The sparse-modeling techniques are based on a compact orthogonal basis, an intermediate representation (IR) basis, for imaginary-time and Matsubara Green's functions. A sparse samp...

In my paper I describe the effects of magnetic fields in solid state physics, in astrophysics, and in the magnetic therapies of human diseases. PACS number: 75.40.-s

In this work I demonstrate the interference of three photons, a generalisation of the famous Hong Ou Mandel (HOM) interference. I show that three-photon interference is governed by four parameters and measure three-photon interference independent of two-photon interference. I demonstrate that even when the states of the photons are highly distingui...

Tavis-Cummings (TC) cavity quantum electrodynamical effects, describing the interaction of $N$ atoms with an optical resonator, are at the core of atomic, optical and solid state physics. The full numerical simulation of TC dynamics scales exponentially with the number of atoms. By restricting the open quantum system to a single excitation, typical...

High harmonic generation in solids is becoming an important method for strong field solid state physics research. The power scale relationship between high harmonics and the driving laser is investigated both experimentally and theoretically. Results of the power scale dependence clearly divided the interaction into two regimes. The modification of...

In solid state physics, any symmetry breaking is known to be associated with emergence of an order parameter. However, the order parameter for molecular and crystal chirality, which is a consequence of parity and mirror symmetry breaking, has not been known since its discovery. In this article, the authors show that the order parameter for chiralit...

In solid state physics, any symmetry breaking is known to be associated with emergence of an order parameter. However, the order parameter for molecular and crystal chirality, which is a consequence of parity and mirror symmetry breaking, has not been known since its discovery. In this article, the authors show that the order parameter for chiralit...

We present an educational application of virtual reality that we created to help students gain an in-depth understanding of the internal structure of crystals and related key concepts. Teachers can use it to give lectures to small groups (10-15) of students in a shared virtual environment, both remotely (with teacher and students in different locat...

Mixed transition metal oxides have emerged as efficient electrode materials because of their significant cyclic stability, and superior capacitance values, resulting in remarkable electrochemical outputs. In this regard, Sr2Ni2O5/rGO composites were synthesized using a facile solvothermal method to achieve efficient electrochemical pursuits. X-ray...

In honor of Professor John B. Goodenough for his 100th birthday, this article tries to find the relationship between the discovery of cathode materials for lithium‐ion batteries and the interdisciplinary research in his career. The original ideas of lithium cobalt oxide, lithium manganese oxide, and LiFePO4 came from his early research in solid sta...

In solid state physics, a bandgap (BG) refers to a range of energies where no electronic states can exist. This concept was extended to classical waves, spawning the entire fields of photonic and phononic crystals where BGs are frequency (or wavelength) intervals where wave propagation is prohibited. For elastic waves, BGs were found in periodicall...

Isospectral flows appear in a variety of applications, e.g. the Toda lattice in solid state physics or in discrete models for two-dimensional hydrodynamics. The isospectral property thereby often corresponds to mathematically or physically important conservation laws. The most prominent feature of these systems, i.e. the conservation of the eigenva...

In this review article, studies of some amorphous and crystalline have been viewed. Lattice of crystalline related with cristallography has been elucidated on the perspective of solid state physics. Furthermore, usage of obsidian has been recommended for thermoluminescence dosimetry (TLD). Crystalline growth methods have been explained briefly....

In this thesis work, we study the ultra-fast dynamics of electrons and phonons in ferroic materials, such as GeTe and BiFeO3. This experimental work is carried out using ultra-fast optics and time-resolved X-ray diffraction techniques.In the first part of this research, we studied these dynamics in the GeTe material, which is the reference system f...

Bismuth is an archetypal semimetal with gigantic spin-orbit coupling and it has been a major source material for the discovery of seminal phenomena in solid state physics for more than a century. In recent years, spin current transports in bismuth have also attracted considerable attention. In this paper, we theoretically study both spin Hall effec...

Metallogeny is the science of ore and mineral deposit formation in geological space and time. Metallogeny is interdisciplinary by nature, comprising elements of natural science disciplines such as planetology to solid state physics and chemistry, and volcanology. It is the experimental forefront of research and bold thinking, based on an ever-growi...

"I, apparently, am not literate enough to understand what I counted on the basis of the Quantum Conceptions I have introduced." Max Planck. Many quantum-mechanical models are widely used in Solid State Physics and Semiconductor Physics, which the author has been actively involved in for almost half a century of work at the Academy of Sciences. But...

Solid-state is a compulsory subject in the Physics Education study program. Therefore, the level of complexity—depth—of the material taught is moderate. However, students are facing some obstacles in understanding crystal structure material that is related to microscopic structures. This research aims to apply diamond software media to crystal stru...

Ever since its discovery, the notion of Berry phase has permeated through all branches of physics, being at the heart of a large variety of quantum phenomena. However, so far all its realizations were based on a continuous evolution of the quantum state, following a cyclic path. Here, we introduce and demonstrate a conceptually new manifestation of...

In physics, the study of transport phenomena concerns the exchange of mass, energy, charge, momentum and angular momentum between observed and studied systems. Mass, momentum, and heat transport all share a very similar mathematical framework, and the parallels between them are exploited in the study of transport phenomena to draw deep mathematical...

This letter demonstrates two distributed down-converter monolithic microwave integrated circuits (MMICs). MMIC1 contains a distributed down-conversion mixer and MMIC2 expands MMIC1 by an eight-cell distributed local oscillator (LO) driver amplifier. The letter includes an investigation of the optimal gate width for each of the transistors in the st...

This article is devoted to the implementation of scientific achievements into the educational process of physics specialties students in the framework of study course “Solid State Physics”. In this work, based on our previous scientific results, we present a quantum-mechanical approach that can adequately describe the temperature dependences of the...

Deep Learning is the process to led machine learning, natural language processing and neural networks. The various deep learning models, computer vision systems and artificial intelligence services are used to study of various real time applications. Due to lack of computing resource the conventional neural network are produces delay in progress an...