English
Related papers

Related papers: c(2x2) Interface Alloys in Co/Cu Multilayers - Inf…

200 papers

Nowadays a wide number of applications based on magnetic materials relies on the properties arising at the interface between different layers in complex heterostructures engineered at the nanoscale. In ferromagnetic/heavy metal multilayers,…

The magnetic and chemical structure of metal/oxide interfaces were studied in cobalt/magnetite, $Fe_3O_4$, and cobalt/hematite, ${\alpha}-Fe_2O_3$, epitaxial heterostructures using the comprehensive selection of microscopic and…

With x-ray absorption spectroscopy and polarized neutron reflectometry we studied how the magnetic proximity effect at the interface between the cuprate high-$T_C$ superconductor $\mathrm{YBa_2Cu_3O_7}$ (YBCO) and the ferromagnet…

We develop a theory of the exchange interaction between ferromagnetic (FM) metallic grains embedded into insulating matrix by taking into account the Coulomb blockade effects. For bulk ferromagnets separated by the insulating layer the…

Mesoscale and Nanoscale Physics · Physics 2017-04-10 O. G. Udalov , I. S. Beloborodov

The effect of interface roughness of ferromagnetic and antiferromagnetic layers on exchange bias is still not well understood. In this report we have investigated the effect of surface roughness in (111)-oriented antiferromagnetic CoO films…

The nature of magnetic order and transport properties near surfaces is a topic of great current interest. Here we model metal-insulator interfaces with a multi-layer system governed by a tight-binding Hamiltonian in which the interaction is…

Strongly Correlated Electrons · Physics 2012-06-14 A. Euverte , F. Hébert , S. Chiesa , R. T. Scalettar , G. G. Batrouni

We report on first-principles calculations of multilayers of zinc-blende half-metallic ferromagnets CrAs and CrSb with III-V and II-VI semiconductors, in the [001] orientation. We examine the ideal and tetragonalised structures, as well as…

Materials Science · Physics 2009-11-10 Ph. Mavropoulos , I. Galanakis , P. H. Dederichs

Two-dimensional transition metal dichalcogenides (MX2)/metal oxide heterostructures have shown unique physical properties, making them promising materials for various applications ranging from photocatalysis to solar energy conversion.…

Materials Science · Physics 2016-12-05 Ke Yang , Wei-Qing Huang , Wangyu Hu , Gui-Fang Huang , Shuangchun Wen

Igniting interface magnetic ordering of magnetic topological insulators by building a van der Waals heterostructure can help to reveal novel quantum states and design functional devices. Here, we observe an interesting exchange bias effect,…

In order to determine the key parameters that control the resistive switching mechanism in metal-complex oxides interfaces, we have studied the electrical properties of metal / YBa2Cu3O7-d (YBCO) interfaces using metals with different…

Materials Science · Physics 2015-06-03 A. Schulman , C. Acha

A new \textit{D0$_{23}$} metastable phase of Cu$_3$Au is found to grow at the interfaces of Au/Cu multilayers deposited by magnetron sputtering. The extent of formation of this novel alloy phase depends upon an optimal range of interfacial…

Materials Science · Physics 2009-11-11 Subhendu Sarkar , Alokmay Datta , Purushottam Chakraborty , Biswarup Satpati

The interference induced transverse negative magnetoresistance of GaAs/InGaAs/GaAs quantum well heterostructures has been studied in the presence of strong in-plane magnetic field. It is shown that effect of in-plane magnetic field is…

Condensed Matter · Physics 2009-11-10 G. M. Minkov , O. E. Rut , A. V. Germanenko , A. A. Sherstobitov , B. N. Zvonkov , D. O. Filatov

We study the interface exciton at lateral type II heterojunctions of monolayer transition metal dichalcogenides (TMDs), where the electron and hole prefer to stay at complementary sides of the junction. We find that the 1D interface exciton…

Mesoscale and Nanoscale Physics · Physics 2018-09-26 Ka Wai Lau , Calvin , Zhirui Gong , Hongyi Yu , Wang Yao

The role of graded interfaces between materials in a cylindrical free-standing quantum wire with longitudinal heterostructures is theoretically investigated, by solving the Schr\"odinger equation within the effective mass approximation.…

Mesoscale and Nanoscale Physics · Physics 2011-05-06 Andrey Chaves , J. A. K. Freire , G. A. Farias

The enhancement of interfacial Dzyaloshinskii-Moriya Interaction (DMI) in magnetic multilayers results in the stabilization of topological spin textures like chiral domain walls and skyrmions. Here we report on the evaluation of…

Electronic correlations could have significant impact on the material properties. They are typically pronounced for localized orbitals and enhanced in low-dimensional systems, so two-dimensional (2D) transition metal compounds could be a…

Materials Science · Physics 2021-09-01 Si Li , Qianqian Wang , Chunmei Zhang , Ping Guo , Shengyuan A. Yang

The intercalation of different species in graphene-metal interfaces is widely used to stabilise the artificial phases of different materials. However, formation of the surface alloys upon the guest-metal intercalation is still an open…

Materials Science · Physics 2021-12-28 Elena Voloshina , Beate Paulus , Yuriy Dedkov

We study the effect of the non-magnetic 3\textit{d} atoms on the magnetic properties of the half-metallic (HM) semi-Heusler alloys Co$_{1-x}$Cu$_{x}$MnSb and Ni$_{1-x}$Cu$_{x}$MnSb ($0 \leq x \leq 1$) using first-principles calculations. We…

Materials Science · Physics 2015-05-13 I. Galanakis , E. Sasioglu , K. Ozdogan

The interlayer couplings in commensurate and incommensurate bilayer structures of transition metal dichalcogenides are investigated with perturbative treatment. The interlayer coupling in \pm K valleys can be decomposed into a series of…

Mesoscale and Nanoscale Physics · Physics 2017-03-28 Yong Wang , Zhan Wang , Wang Yao , Gui-Bin Liu , Hongyi Yu

We fabricated a nanolayered hybrid superconductor-ferromagnet spin-valve structure, the resistive state of which depends on the preceding magnetic field polarity. The effect is based on a strong exchange bias (about -2 kOe) on a diluted…