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Related papers: Interface resistance of disordered magnetic multil…

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We report on systematic ab-initio investigations of Co and Cr interlayers embedded in Fe(001)/MgO/Fe(001) magnetic tunnel junctions, focusing on the changes of the electronic structure and the transport properties with interlayer thickness.…

Materials Science · Physics 2013-05-29 P. Bose , P. Zahn , J. Henk , I. Mertig

The temperature dependence of the electrical resistivity and magnetoresistance of Xe-ion beam sputtered Fe-Cr multilayers has been investigated. The electrical resistivity between 5 and 300 K in the fully ferromagnetic state, obtained by…

Materials Science · Physics 2009-11-07 A. K. Majumdar , A. F. Hebard , Avinash Singh , D. Temple

We investigate theoretically spin-resolved transport, spin filtering, and nonreciprocal effects in an Altermagnet/Ising superconductor (AM/ISC) junction with a spin-active interface. Using a modified Bogoliubov-de Gennes framework within…

Superconductivity · Physics 2026-05-14 Arindam Boruah , Saumen Acharjee , Prasanta Kumar Saikia

The resistance of multilayers with interface roughness on a length scale which is large compared to the atomic spacing is computed in several cases via the Boltzmann equation. This type of roughness is common in magnetic multilayers. When…

Materials Science · Physics 2010-01-12 Jason Alicea , Selman Hershfield

A systematic, quantitative study of the effect of interface roughness and disorder on the magnetoresistance of FeCo$|$vacuum$|$FeCo magnetic tunnel junctions is presented based upon parameter-free electronic structure calculations. Surface…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 P. X. Xu , V. M. Karpan , K. Xia , M. Zwierzycki , I. Marushchenko , P. J. Kelly

Using spin waves we directly probe the interface of an exchange biased Ni$_{80}$Fe$_{20}$/Ir$_{25}$Mn$_{75}$ film which has been modified by the presence of an Au dusting layer. Combining this experimental data with a discretised simulation…

Mesoscale and Nanoscale Physics · Physics 2011-12-12 R. Magaraggia , S. McIntyre , K. Kennewell , R. L. Stamps , M. Ali , D. Greig , B. J. Hickey , C. H. Marrows

First-principles scattering calculations are used to investigate spin transport through interfaces between diffusive nonmagnetic metals where the symmetry lowering leads to an enhancement of the effect of spin-orbit coupling (SOC) and to a…

Mesoscale and Nanoscale Physics · Physics 2022-09-21 Kriti Gupta , Ruixi Liu , Rien J. H. Wesselink , Zhe Yuan , Paul J. Kelly

We investigate the diffusive electron transport in conductors with spatially inhomogeneous magnetic properties taking into account both impurity and normal scattering. It is found that the additional interface resistance that arises due to…

Mesoscale and Nanoscale Physics · Physics 2011-09-06 R. N. Gurzhi , A. N. Kalinenko , A. I. Kopeliovich , P. V. Pyshkin , A. V. Yanovsky

In the present work, spin orientation and variation of the strength of coupling in [Co/Pt]ML/Fe multilayer have been investigated as a function of the thickness of the Fe layer. [Co/Pt]ML/Fe multilayer has orthogonal anisotropy with the Fe…

We report magnetoresistance measurements on thin Pt bars grown on epitaxial (001) and (111) CoFe2O4 (CFO) ferrimagnetic insulating films. The results can be described in terms of the recently discovered spin Hall magnetoresistance (SMR).…

By ab initio LMTO calculations in atomic-sphere approximation we have studied the interlayer exchange coupling between Fe films separated by Au spacers in infinite Fe/Au multilayers with (001) interface orientation. We also performed…

Materials Science · Physics 2009-10-31 M. Böhm , U. Krey

Combining the first-principles noncollinear calculations of scattering matrices with Andreev approximation, we investigated the spin-triplet Andreev reflection (AR) spectra for the interface between half-metallic ferromagnet Co$_{2}$MnSi…

Mesoscale and Nanoscale Physics · Physics 2013-06-13 Ling Tang

We show that arbitrarily weak interparticle interactions destabilize the surface states of 3D topological superconductors with spin SU(2) invariance (symmetry class CI), in the presence of non-magnetic disorder. The conduit for the…

Disordered Systems and Neural Networks · Physics 2015-06-04 Matthew S. Foster , Emil A. Yuzbashyan

We calculate the current spin polarisation and the interface resistance of Fe/GaAs and Fe/ZnSe (001) spin injection junctions from first principles, including also the possibility of a Schottky barrier. From our results of interface…

Materials Science · Physics 2007-05-23 Olaf Wunnicke , Phivos Mavropoulos , Peter H. Dederichs

The discontinuity of a spin-current through an interface caused by spin-orbit coupling is characterized by the spin memory loss (SML) parameter {\delta}. We use first-principles scattering theory and a recently developed local current…

Mesoscale and Nanoscale Physics · Physics 2021-05-06 Kriti Gupta , Rien J. H. Wesselink , Ruixi Liu , Zhe Yuan , Paul J. Kelly

From measurements of the current-perpendicular-to-plane (CPP) magnetoresistance of ferromagnetically coupled [Co(90)Fe(10)/Cu]xn multilayers, within sputtered Permalloy-based double exchange biased spin-valves, we determine the parameter…

Materials Science · Physics 2015-05-20 H. Y. T. Nguyen , R. Acharyya , W. P. Pratt , J. Bass

Newest developments in nuclear fission and fusion technology as well as planned long-distance space missions demand novel materials to withstand harsh, irradiative environments. Radiation-induced hardening and embrittlement are a concern…

Spin currents can modify the magnetic state of ferromagnetic ultrathin films through spin-orbit torque. They may be generated by means of spin-orbit interaction by either bulk or interfacial phenomena. Electrical transport measurements…

Mesoscale and Nanoscale Physics · Physics 2022-06-27 A. Anadón , R. Guerrero , J. A. Jover-Galtier , A. Gudín , J. M. Díez , P. Olleros-Rodríguez , R. Miranda , J. Camarero , P. Perna

The coherent, interlayer resistance of a misoriented, rotated interface between two stacks of AB graphite is determined for a variety of misorientation angles. The quantum-resistance of the ideal AB stack is on the order of 1 to 10 m$\Omega…

Mesoscale and Nanoscale Physics · Physics 2014-08-27 K. M. Masum Habib , Somaia S. Sylvia , Supeng Ge , Mahesh Neupane , Roger K. Lake

By combining interface-sensitive non-linear magneto-optical experiments with femtosecond time resolution and ab-initio time-dependent density functional theory, we show that optically excited spin dynamics at Co/Cu(001) interfaces proceeds…

Materials Science · Physics 2019-02-20 J. Chen , U. Bovensiepen , A. Eschenlohr , T. Müller , P. Elliott , E. K. U. Gross , J. K. Dewhurst , S. Sharma