Xin Wu- Doctor of Engineering
- JSPS Postdoctoral Research Fellow at The University of Tokyo
Xin Wu
- Doctor of Engineering
- JSPS Postdoctoral Research Fellow at The University of Tokyo
Nanoscale Thermophysics
About
20
Publications
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Introduction
Xin Wu currently focus on the thermal transport properties of two-dimensional materials and their heterostructures by machine-learned potential-based molecular dynamics methods.
Current institution
Education
September 2018 - December 2023
September 2014 - June 2018
Publications
Publications (20)
Through extensive molecular dynamics simulations, we completed the thermal transport properties study of the monolayer hexagonal boron nitride (h-BN) films from the defect state to the amorphous state. To this end, a defective h-BN model construction program has been developed, which can customize the nature of the defects and realize the transitio...
The van der Waals (vdW) superlattice, obtained by applying the concept of the periodic superlattice to two-dimensional materials using low-energy vdW physical assembly, is undoubtedly an instrumental avenue for the modulation of material properties. In the field of nanoscale thermal transport, the influence of the periodic structure of superlattice...
The development of emerging technologies, such as quantum computing and semiconductor electronics, emphasizes the growing significance of thermal management at cryogenic temperatures. Herein, by designing isotope interfaces based on the Golomb ruler, we achieved effective suppression of the phonon thermal transport of cryogenic graphene. The pronou...
Probing the ideal limit of interfacial thermal conductance (ITC) in two-dimensional (2D) heterointerfaces is of paramount importance for assessing heat dissipation in 2D-based nanoelectronics. Using graphene/hexagonal boron nitride (Gr/$h$-BN), a structurally isomorphous heterostructure with minimal mass contrast, as a prototype, we develop an accu...
Mathematically inspired structure design has emerged as a powerful approach for tailoring material properties, especially in nanoscale thermal transport, with promising applications both within this field and beyond. By employing mathematical principles, based on number theory, such as periodicity and quasi-periodic organizations, researchers have...
Phonon coherence elucidates the propagation and interaction of phonon quantum states within superlattice, unveiling the wave-like nature and collective behaviors of phonons. Taking MoSe$_2$/WSe$_2$ lateral heterostructures as a model system, we demonstrate that the intricate interplay between wave-like and particle-like phonons, previously observed...
Molecular dynamics (MD) simulations play an important role in understanding and engineering heat transport properties of complex materials. An essential requirement for reliably predicting heat transport properties is the use of accurate and efficient interatomic potentials. Recently, machine-learned potentials (MLPs) have shown great promise in pr...
Molecular dynamics (MD) simulations play an important role in understanding and engineering heat transport properties of complex materials. An essential requirement for reliably predicting heat transport properties is the use of accurate and efficient interatomic potentials. Recently, machine-learned potentials (MLPs) have shown great promise in pr...
Two-dimensional (2D) lateral superlattices, a typical artificial nano-phononic crystal, have stimulated widespread interests and potential application prospects in terms of their physically interesting features. Herein, we have found wave-particle crossover of phonon transport in the graphene (Gr)/2D polyani-line (C 3 N) lateral superlattices, whic...
The emergence of two-dimensional empty space (2D-ES) not only enriches the means of van der Waals integration, but also provides a new and reliable solution for structural design-driven performance modulation. Here, by applying the concept of 2D-ES-based periodic structure design to multilayer graphene, the large-range tunable in-plane anisotropic...
With the ongoing development and maturation of van der Waals integration technology in recent years, the two-dimensional empty space (2D-ES) in multilayer graphene are undergoing a major breakthrough from conceptual realization to controlled design, which will open up novel possibilities in the micro-nano technology, including thermal transport. He...
Acoustic transport through topological edge states in phononic crystals improves the suppression of backscattering, which gives these systems significant potential for controlling sound waves. Recent research shows that only one acoustic edge state caused by topological valley phases can transmit in phononic crystals. This paper proposes a genre of...
Two-dimensional polyaniline (2D-PANI) with semiconductor properties, a single crystalline carbon nitride with a stoichiometry of C3N, has attracted a lot of interest after its successful synthesis. In this study, the thermal transport properties in pristine and defective 2D-PANI were explored by extensive molecular dynamics (MD) simulations. Result...
Two-dimensional (2D) in-plane heterostructures, whose interface thermal conductance (ITC) plays a crucial role in the thermal performance of nanostructured materials, will undoubtedly become the focus of the next-generation nanoelectronic devices. In this work, the semidefective graphene/ hexagonal boron nitride in-plane heterostructures were innov...
This paper presents a semi-analytical approach to investigate wave propagation characteristics in functionally graded graphene reinforced piezoelectric composite plates. Three patterns of graphene platelets (GPLs) describe the layer-wise variation of material properties in the thickness direction. Based on the Reissner-Mindlin plate theory and the...
The exceptional thermal transport properties of graphene are affected due to the presence of various topological defects, which include single vacancy, double vacancies and Stone-Wales defects. The present article is intended to study on thermal transport properties of defective graphene by comparing the effects of topological defects on the therma...
The simple and practicable intrinsic driving mechanism is of great significance for the design and development of nanoscale devices. This paper proposes a nanosystem that can achieve directional gradientless thermoexcited rotation at a relatively high temperature field (such as 300 K). In the case of a constant temperature field, the difference in...
