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Introduction
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April 2008 - present
Publications
Publications (6)
We perform an extensive study of Sr3Cr2O7, the n=2 member of the Ruddlesden-Popper Srn+1CrnO3n+1 system. An antiferromagnetic ordering is clearly visible in the magnetization and the specific heat, which yields a huge transition entropy, Rln(6). By neutron diffraction as a function of temperature we have determined the antiferromagnetic structure t...
In this work we present a systematic study of the magnetic interactions within 3d transition-metal chains adsorbed on Cu2N and Cu2O monolayers grown on Cu(001). We are interested in the particular geometric adsorption configuration which gives rise, after relaxation, to the development of diatomic TM−X(X=N,O) chains. By using density functional the...
We probe the resistive switching response of Au/TiO2/Cu junctions, on samples initialized using both polarities electroforming. A conductive path is formed in both cases: a copper metallic filament for negative electroforming and a titanium dioxide possibly Magneli phase based filament for the positive case. We measured the resistance response of f...
Covalent substrates can give rise to a variety of magnetic interaction
mechanisms among adsorbed transition metal atoms building atomic
nanostructures. We show this by calculating the ground state magnetic
configuration of monoatomic 3d chains deposited on a monolayer of Cu$_2$N grown
on Cu(001) as a function of $d$ filling and of adsorption sites...
Covalent substrates can give rise to a variety of magnetic interaction
mechanisms among adsorbed transition metal atoms building atomic
nanostructures. We show this by calculating the ground state magnetic
configuration of monoatomic 3d chains deposited on a monolayer of
Cu$_2$N grown on Cu(001) as a function of $d$ filling and of adsorption
sites...
We investigate the electronic and magnetic properties of linear chains of 3d atoms, namely Cr and Mn, supported on a monolayer of copper nitride on Cu(100) using first principles LSDA calculations. Based on these results, we also calculate the intrachain magnetic coupling by means of an effective Heisenberg model. We obtain that, the sp occupation...
