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相关论文: Multi-band character revealed from Weak-antilocali…

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In this paper we study the effects of hybridization in the superconducting properties of a two-band system. We consider the cases that these bands are formed by electronic orbitals with angular momentum, such that, the hybridization…

超导电性 · 物理学 2017-10-03 Heron Caldas , F. S. Batista , Mucio A. Continentino , Fernanda Deus , David Nozadze

We predict theoretically that, when a normal metallic thin film (without bulk spin-orbit coupling, such as Cu or Al) is sandwiched by two insulators, two prominent effects arise due to the interfacial spin-orbit coupling: a giant spin-Hall…

介观与纳米尺度物理 · 物理学 2013-02-22 Xuhui Wang , Jiang Xiao , Aurelien Manchon , Sadamichi Maekawa

We study the interplay between superconductivity and altermagnetism in disordered systems using recently derived quantum kinetic transport equations. Starting from this framework, we derive the Ginzburg-Landau free energy and identify, in…

Antiferromagnetic materials host pairs of spin-up and spin-down magnons which can be described in terms of a magnonic pseudospin. The close analogy between this magnonic pseudospin systems and that of electronic charge carriers led to the…

The vast majority of superconductors have more than one Fermi surface, on which the electrons pair below the critical temperature $T_C$, yet their superconducting behavior can be well described by a single-band Bardeen-Cooper-Schrieffer…

In superconducting quantum circuits, aluminum is one of the most widely used materials. It is currently also the superconductor of choice for the development of topological qubits. In this application, however, aluminum-based devices suffer…

A theoretical study is presented of the effect of an in-plane magnetic exchange field on the band structure of centrosymmetric films of noble metals and topological insulators. Based on an ab initio relativistic $\mathbf{k}\cdot\mathbf{p}$…

材料科学 · 物理学 2022-01-14 I. A. Nechaev , E. E. Krasovskii

We present a microscopic theory of coherent quantum transport through a superconducting film between two ferromagnetic electrodes. The scattering problem is solved for the general case of ferromagnet/superconductor/ferromagnet (FSF)…

超导电性 · 物理学 2015-06-24 Milos Bozovic , Zoran Radovic

Ferromagnetic films with perpendicular magnetic anisotropy are of interest in spintronics and superconducting spintronics. Perpendicular magnetic anisotropy can be achieved in thin ferromagnetic multilayer structures, when the anisotropy is…

介观与纳米尺度物理 · 物理学 2023-06-01 N. Satchell , S. Gupta , M. Maheshwari , P. M. Shepley , M. Rogers , O. Cespedes , G. Burnell

Weak localization corrections to conductivity of ferromagnetic systems are studied theoretically in the case when spin-orbit interaction plays a significant role. Two cases are analyzed in detail: (i) the case when the spin-orbit…

材料科学 · 物理学 2009-11-07 V. K. Dugaev , P. Bruno , J. Barnas

Effect of the spin-involved interaction of electrons with impurity atoms or defects to the transport properties of a two-dimensional electron gas is described by using a simplifying two-component model. Components representing spin-up and…

凝聚态物理 · 物理学 2007-05-23 P. Seba , P. Exner , K. N. Pichugin , P. Streda

Spin-orbit coupling is studied using the quantum interference corrections to conductance in AlGaN/AlN/GaN two-dimensional electron systems where the carrier density is controlled by the persistent photoconductivity effect. All the samples…

材料科学 · 物理学 2009-11-11 C. Kurdak , N. Biyikli , U. Ozgur , H. Morkoc , V. I. Litvinov

The results of magnetoconductivity measurements in GaInAs quantum wells are presented. The observed magnetoconductivity appears due to the quantum interference, which lead to the weak localization effect. It is established that the details…

We show that interference experiments can be used to identify the spin-incoherent regime of strongly interacting one-dimensional conductors. Two qualitative signatures of spin-incoherence are found: a strong magnetic field dependence of the…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Kindermann , P. W. Brouwer , A. J. Millis

Weak localization and weak anti-localization are quantum interference effects in quantum transport in a disordered electron system. Weak anti-localization enhances the conductivity and weak localization suppresses the conductivity with…

介观与纳米尺度物理 · 物理学 2014-09-05 Hai-Zhou Lu , Shun-Qing Shen

We study the effects of varying the pre-implant film thickness and implant temperature on the electrical and superconducting properties of metal-mixed ion-implanted polymers. We show that it is possible to drive a superconductor-insulator…

超导电性 · 物理学 2015-05-14 Andrew P. Stephenson , Adam P. Micolich , Ujjual Divakar , Paul Meredith , B. J. Powell

We demonstrate that the weak antilocalization effect can serve as a convenient method for detecting decoupled surface transport in topological insulator thin films. In the regime where a bulk Fermi surface coexists with the surface states,…

介观与纳米尺度物理 · 物理学 2011-06-16 J. Chen , X. Y. He , K. H. Wu , Z. Q. Ji , L. Lu , J. R. Shi , J. H. Smet , Y. Q. Li

Magnetoelectric multiferroic materials, particularly with the perovskite structure, are receiving a lot of attention because of their inherent coupling between electrical polarization and magnetic ordering. However, very few types of direct…

We have performed magnetoresistance measurements on polyfluorene sandwich devices in weak magnetic fields as a function of applied voltage, device temperature (10K to 300K), film thickness and electrode materials. We observed either…

软凝聚态物质 · 物理学 2016-08-16 Ö. Mermer , M. Wohlgenannt , G. Veeraraghavan , T. L. Francis

We study the magnetoresistance of yttrium iron garnet/Pt heterostructures in which the Pt layer was grown via atomic layer deposition (ALD). Magnetotransport experiments in three orthogonal rotation planes reveal the hallmark features of…