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Spintronics involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. The fascinating spin-resolved properties of graphene motivate numerous researchers into the studies of spintronics in…

Materials Science · Physics 2015-06-03 Yangyang Wang , Ruge Quhe , Dapeng Yu , Ju Li , Jing Lu

When a charge current is injected into an altermagnet along a suitable crystallographic direction, a transverse spin current can be generated. This so-called spin-splitter effect does not rely on spin-orbit coupling, and is thus distinct…

Mesoscale and Nanoscale Physics · Physics 2025-07-08 Karl Bergson Hallberg , Erik Wegner Hodt , Jacob Linder

Pure spin currents, i.e. the transport of angular momentum without an accompanying charge current, represent a new, promising avenue in modern spintronics from both a fundamental and an application point of view. Such pure spin currents can…

Mesoscale and Nanoscale Physics · Physics 2018-07-04 Matthias Althammer

We study the nonequilibrium Seebeck spin transport across metal-magnetic insulator interfaces. The conjugate-converted thermal-spin transport is assisted by the exchange interaction at the interface, between conduction electrons in the…

Mesoscale and Nanoscale Physics · Physics 2013-12-19 Jie Ren

Spintronics has become a broad and important research field that intersects with magnetism, nano-electronics, and materials science. Its overarching aim is to provide a fundamental understanding of spin-dependent phenomena in solid-state…

Mesoscale and Nanoscale Physics · Physics 2025-04-29 David T. S. Perkins , Aires Ferreira

We investigate nonequilibrium effects in the transport of interacting electrons in quantum conductors, proposing the nonlocal thermoelectric response as a direct indicator of the presence of interactions, nonthermal states and the effect of…

Mesoscale and Nanoscale Physics · Physics 2024-05-10 Alessandro Braggio , Matteo Carrega , Björn Sothmann , Rafael Sánchez

How magnetism affects the Seebeck effect is an important issue widely concerned in the thermoelectric community yet remaining elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied $d$-electron based ferro- and…

Materials Science · Physics 2021-06-15 Peijie Sun , K. Ramesh Kumar , Meng Lyu , Zhen Wang , Junsen Xiang , Wenqing Zhang

Nonlocal charge correlations induced in two normal metals contacted separately to a supercon- ductor have been studied intensively in the past few years. Here we investigate nonlocal correlations induced by the transfer of pure spin…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Taewan Noh , Manuel Houzet , Julia S. Meyer , Venkat Chandrasekhar

Kane and Mele predicted that in presence of spin-orbit interaction graphene realizes the quantum spin Hall state. However, exceptionally weak intrinsic spin-orbit splitting in graphene ($\approx 10^{-5}$ eV) inhibits experimental…

Mesoscale and Nanoscale Physics · Physics 2013-06-18 Gabriel Autès , Oleg V. Yazyev

Using simultaneous magnetic force microscopy (MFM) and transport measurements of a graphene spin valve, we correlate the non-local spin signal with the magnetization of the device electrodes. The imaged magnetization states corroborate the…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Andrew J. Berger , Michael R. Page , Hua Wen , Kathleen M. McCreary , Vidya P. Bhallamudi , Roland K. Kawakami , P. Chris Hammel

We investigate the spin injection and the spin transport in paramagnetic insulators described by simple Heisenberg interactions using auxiliary particle methods. Some of these methods allow access to both paramagnetic states above magnetic…

Strongly Correlated Electrons · Physics 2016-02-23 Satoshi Okamoto

Spintronics is a field of electronics based on using the electron spin instead of its charge. The recent advance in the manipulation of pure spin currents, i.e. angular momentum transfer not associated to conventional charge currents, has…

Establishing the conditions under which orbital, spin and lattice-pseudospin degrees of freedom are mutually coupled in realistic nonequilibrium conditions is a major goal in the emergent field of graphene spintronics. Here, we use…

Mesoscale and Nanoscale Physics · Physics 2021-11-16 Aires Ferreira

Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. This article reviews the current status of this subject, including both recent advances and…

Other Condensed Matter · Physics 2009-11-10 Igor Zutic , Jaroslav Fabian , S. Das Sarma

A graphene sheet biased with a drift electric current offers a tantalizing opportunity to attain unidirectional, backscattering-immune, and subwavelength light propagation, as proposed in [T. A. Morgado, M. G. Silveirinha, ACS Photonics…

Mesoscale and Nanoscale Physics · Physics 2020-08-12 Tiago A. Morgado , Mário G. Silveirinha

The conversion of spin currents polarized in different directions into charge currents is a keystone for novel spintronic devices. Van der Waals heterostructures with tailored symmetry are a very appealing platform for such a goal. Here, by…

Mesoscale and Nanoscale Physics · Physics 2024-11-01 Josep Ingla-Aynés , Inge Groen , Franz Herling , Nerea Ontoso , C. K. Safeer , Fernando de Juan , Luis E. Hueso , Marco Gobbi , Fèlix Casanova

The electronic conductance of graphene-based bilayer flake systems reveal different quantum interference effects, such as Fabry-P\'erot resonances and sharp Fano antiresonances on account of competing electronic paths through the device.…

Mesoscale and Nanoscale Physics · Physics 2017-01-18 D. Zambrano , L. Rosales , A. Latgé , M. Pacheco , P. A. Orellana

We report two non-degenerate magnon modes with opposite spins or chiralities in collinearly antiferromagnetic insulators driven by symmetry-governed anisotropic exchange couplings. The consequent giant spin splitting contributes to spin…

Mesoscale and Nanoscale Physics · Physics 2023-07-20 Qirui Cui , Bowen Zeng , Tao Yu , Hongxin Yang , Ping Cui

A spin current has novel linear and second-order nonlinear optical effects due to its symmetry properties. With the symmetry analysis and the eight-band microscopic calculation we have systematically investigated the interaction between a…

Mesoscale and Nanoscale Physics · Physics 2012-07-26 Jing Wang , Sheng-Nan Ji , Bang-Fen Zhu , Ren-Bao Liu

The generation, control, and detection of spin currents in solid-state devices are critical for Joule-heating minimization, spin-based computation, and electrical energy generation from thermal gradients. Although incorporation of spin…

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