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Proximity-induced magnetization (PIM) has broad implications across interface-driven spintronics applications employing spin-currents. We directly determine the scaling between PIM in Pt and the temperature-dependent interface magnetization…

Materials Science · Physics 2019-11-20 O. Inyang , L. Bouchenoire , B. Nicholson , M. Tokac , R. M. Rowan-Robinson , C. J. Kinane , A. T. Hindmarch

The scattering theory of transport has to be applied with care in a diffuse environment. Here we discuss how the scattering matrices of heterointerfaces can be used to compute interface resistances of dirty magnetic multilayers. First…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Gerrit E. W. Bauer , Kees M. Schep , Ke Xia , Paul J. Kelly

With the increasing miniaturization of electronic components and the need to optimize thermal management, it has become essential to understand heat transport at metal/semiconductor interfaces. While it has been recognized decades ago that…

We consider coupled spin and heat transport in a two-component, atomic Bose gas in the noncon- densed state. We find that the transport coefficients show a temperature dependence reflecting the bosonic enhancement of scattering, and discuss…

Quantum Gases · Physics 2012-02-16 C. H. Wong , H. J. van Driel , R. Kittinaradorn , H. T. C. Stoof , R. A. Duine

Noncollinear antiferromagnets (nc-AFMs) have attracted increasing research attention in spintronics due to their unique spin structures and fascinating charge and spin transport properties. By using first-principles calculations, we…

Materials Science · Physics 2024-05-28 Meng Zhu , Xinlu Li , Fanxing Zheng , Jianting Dong , Ye Zhou , Kun Wu , Jia Zhang

The electronic transport behaviour of materials determines their suitability for technological applications. We develop an efficient method for calculating carrier scattering rates of solid-state semiconductors and insulators from first…

At the interface between a nonmagnetic metal (NM) and a ferromagnetic insulator (FI) spin current can interact with the magnetization, leading to a modulation of the spin current. The interfacial exchange field at these FI-NM interfaces can…

Mesoscale and Nanoscale Physics · Physics 2018-07-20 P. K. Muduli , M. Kimata , Y. Omori , T. Wakamura , Saroj P. Dash , YoshiChika Otani

Theory of low temperature kinetic phenomena in metals without inversion center is developed. Kinetic properties of a metal without inversion center are described by four kinetic equations for the diagonal (intra-band) and the off-diagonal…

Strongly Correlated Electrons · Physics 2020-05-19 V. P. Mineev

We present a model to probe metamagnetic properties in systems with an arbitrary number of interacting spins. Thermodynamic properties such as the magnetization per particle $m(B,T,N)$, linear susceptibility $\chi_1(T)$, nonlinear…

Statistical Mechanics · Physics 2018-08-15 Pradeep Kumar , Christopher E. Wagner

Since the discovery of the giant magnetoresistance (GMR) effect the use of the intrinsic angular momentum of the electrons has opened up new spin based device concepts. The two channel model of spin-up and spin-down electrons with…

Mesoscale and Nanoscale Physics · Physics 2014-12-24 F. K. Dejene , J. Flipse , G. E. W. Bauer , B. J. van Wees

A unified understanding of interfacial thermal transport is missing due to the complicated nature of interfaces which involves complex factors such as interfacial bonding, interfacial mixing, surface chemistry, crystal orientation,…

We develop a comprehensive description of static and dynamic spin-transfer torque at interfaces between a normal metal and a magnetic material. Specific examples of the latter include ferromagnets, collinear and noncollinear…

Mesoscale and Nanoscale Physics · Physics 2017-09-13 Yaroslav Tserkovnyak , Hector Ochoa

Spin injection across interfaces driven by ultrashort optical pulses on femtosecond timescales constitutes a new way to design spintronics applications. Targeted utilization of this phenomenon requires knowledge of the efficiency of…

Materials Science · Physics 2022-12-29 P. Elliott , A. Eschenlohr , J. Chen , S. Shallcross , U. Bovensiepen , J. K. Dewhurst , S. Sharma

In this article we extend the currently established diffusion theory of spin-dependent electrical conduction by including spin-dependent thermoelectricity and thermal transport. Using this theory, we propose new experiments aimed at…

Mesoscale and Nanoscale Physics · Physics 2012-01-17 A. Slachter , F. L. Bakker , B. J. van Wees

We treat the spin injection and extraction via a ferromagnetic metal/semiconductor Schottky barrier as a quantum scattering problem. This enables the theory to explain a number of phenomena involving spin-dependent current through the…

Materials Science · Physics 2008-02-20 L. Cywinski , H. Dery , P. Dalal , L. J. Sham

Finite temperature effects have a pronounced impact on the transport properties of solids. In magnetic systems, besides the scattering of conduction electrons by impurities and phonons, an additional scattering source coming from the…

Materials Science · Physics 2017-03-15 Kristina Chadova , Sergiy Mankovsky , Jan Minár , Hubert Ebert

The interplay between spin transport and thermoelectricity offers several novel ways of generating, manipulating, and detecting nonequilibrium spin in a wide range of materials. Here we formulate a phenomenological model in the spirit of…

Mesoscale and Nanoscale Physics · Physics 2012-02-22 B. Scharf , A. Matos-Abiague , I. Žutić , J. Fabian

We study temperature evolution of spin accumulation signals obtained by the three-terminal Hanle effect measurements in a nondegenerated silicon channel with a Schottky-tunnel-barrier contact. We find the clear difference in the…

Mesoscale and Nanoscale Physics · Physics 2012-01-31 Y. Ando , K. Kasahara , S. Yamada , Y. Maeda , K. Masaki , Y. Hoshi , K. Sawano , M. Miyao , K. Hamaya

The contributions to the spin relaxation in copper (Cu) nanowires are quantified by carefully analyzing measurements of both charge and spin transport in lateral spin valves as a function of temperature and thickness. The temperature…

Mesoscale and Nanoscale Physics · Physics 2013-04-04 Estitxu Villamor , Miren Isasa , Luis E. Hueso , Fèlix Casanova

The injection of pure spin current into superconductors by the dynamics of a ferromagnetic contact is studied theoretically. Taking into account suppression of the order parameter at the interfaces (inverse proximity effect) and the…

Mesoscale and Nanoscale Physics · Physics 2009-01-22 Jan Petter Morten , Arne Brataas , Gerrit E. W. Bauer , Wolfgang Belzig , Yaroslav Tserkovnyak