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Odd-parity spin-splitting plays a central role in spintronics and unconventional superconductivity, yet its microscopic realization in collinear magnetic systems remains elusive. We propose a general symmetry-based strategy for realizing…

介观与纳米尺度物理 · 物理学 2026-04-28 Zheng-Yang Zhuang , Di Zhu , Dongling Liu , Zhigang Wu , Zhongbo Yan

We investigate how to engineer an antisymmetric spin-split band structure under spin density waves with finite ordering wave vectors in centrosymmetric systems without the relativistic spin-orbit coupling. On the basis of a perturbative…

强关联电子 · 物理学 2022-03-04 Satoru Hayami

By measuring electron tunneling between a ferromagnet and individual energy levels in an aluminum quantum dot, we show how spin-resolved quantum states can be used as filters to determine spin-dependent tunneling rates. We also observe…

介观与纳米尺度物理 · 物理学 2009-11-07 Mandar M. Deshmukh , D. C. Ralph

We propose and analyze a novel mechanism for long-range spin-spin interactions in diamond nanostructures. The interactions between electronic spins, associated with nitrogen-vacancy centers in diamond, are mediated by their coupling via…

介观与纳米尺度物理 · 物理学 2013-04-12 S. D. Bennett , N. Y. Yao , J. Otterbach , P. Zoller , P. Rabl , M. D. Lukin

We study spin polarization in a split-gate quantum wire focussing on the effect of a realistic smooth potential due to remote donors. Electron interaction and spin effects are included within the density functional theory in the local spin…

介观与纳米尺度物理 · 物理学 2008-04-04 M. Evaldsson , S. Ihnatsenka , I. V. Zozoulenko

We study spin switching effects in finite-size superconducting multivalve structures. We examine $\rm F_1F_2SF_3$ and $\rm F_1F_2SF_3F_4$ hybrids where a singlet superconductor ($\rm S$) layer is sandwiched among ferromagnet ($\rm F$)…

超导电性 · 物理学 2018-03-09 Mohammad Alidoust , Klaus Halterman

We analyze the pairing instability of an altermagnetic metal on a square lattice driven by an attractive nearest-neighbor interaction. This interaction enables multiple pairing channels, including even-parity extended $s$-wave and $d$-wave…

超导电性 · 物理学 2026-03-16 Hui Hu , Zhao Liu , Jia Wang , Xia-Ji Liu , Yoji Ohashi

We study the impact of spin-active scattering on Andreev spectra of point contacts between superconductors(SCs) and strongly spin-polarized ferromagnets(FMs) using recently derived boundary conditions for the Quasiclassical Theory of…

超导电性 · 物理学 2012-08-29 Roland Grein , Tomas Lofwander , Georgo Metalidis , Matthias Eschrig

The intrinsic pinning in high-temperature superconductor with long range antiferromagnetic order of rare-earth ions confined to the isolating planes is described. The interaction of antiferromagnetic and superconducting subsystems in the…

超导电性 · 物理学 2009-10-30 Tomasz Krzyszton

In a collinear magnet, the predominant magnetic moments are collectively aligned along a specific spatial orientation, and this alignment may yield intriguing phenomena such as spin orientation driven polarization. It is well known that…

材料科学 · 物理学 2025-12-12 Yixun Zhang , Longju Yu , Yizhou Tong , Ying Sun , Xu Li , Hong Jian Zhao , Yanming Ma

We describe fluctuating two-dimensional metallic antiferromagnets by transforming to a rotating reference frame in which the electron spin polarization is measured by its projections along the local antiferromagnetic order. This leads to a…

强关联电子 · 物理学 2010-03-22 Yang Qi , Subir Sachdev

Altermagnets are a recently discovered class of magnetic materials that combine a collinear, zero-magnetization spin structure, characteristic of antiferromagnets, with spin-split electronic bands, a hallmark of ferromagnets. This unique…

介观与纳米尺度物理 · 物理学 2026-05-29 Rui Chen , Bin Zhou , Dong-Hui Xu

Frustrated magnetic systems exhibit highly degenerate ground states and strong fluctuations, often leading to new physics. An intriguing example of current interest is the antiferromagnet on a diamond lattice, realized physically in A-site…

The research landscape of magnetism has been recently enriched by the discovery of altermagnetism. It is an unconventional phase of matter characterized by a d-wave (or higher even-parity-wave) collinear compensated spin ordering, which…

材料科学 · 物理学 2025-08-14 T. Jungwirth , J. Sinova , P. Wadley , D. Kriegner , H. Reichlova , F. Krizek , H. Ohno , L. Smejkal

Superconducting spintronics has emerged in the last decade as a promising new field that seeks to open a new dimension for nanoelectronics by utilizing the internal spin structure of the superconducting Cooper pair as a new degree of…

To explore whether a flat-band system can accommodate superconductivity, we consider repulsively interacting fermions on the diamond chain, a simplest quasi-one-dimensional system that contains a flat band. Exact diagonalization and the…

超导电性 · 物理学 2017-01-03 Keita Kobayashi , Masahiko Okumura , Susumu Yamada , Masahiko Machida , Hideo Aoki

We study disordered antiferromagnetic spin-1/2 chains with nearest- and further-neighbor interactions using the real-space renormalization-group method. We find that the system supports two different phases, depending on the ratio of the…

无序系统与神经网络 · 物理学 2009-11-10 Eddy Yusuf , Kun Yang

When a spin-polarized current flows through a ferromagnetic (FM) metal, angular momentum is transferred to the background magnetization via spin-transfer torques. In antiferromagnetic (AFM) materials, however, the corresponding problem is…

介观与纳米尺度物理 · 物理学 2015-06-15 Ran Cheng , Qian Niu

The spin-fluctuation based pairing mechanism has proven successful in explaining the pairing symmetries due to Fermi surface nesting of both cuprates and iron-based materials. In this work, we study signatures of a spin-fluctuation mediated…

超导电性 · 物理学 2013-04-19 A. T. Roemer , S. Graser , P. J. Hirschfeld , B. M. Andersen

One of the main obstacles that prevents practical applications of antiferromagnets is the difficulty of manipulating the magnetic order parameter. Recently, following the theoretical prediction [J. \v{Z}elezn\'y et al., PRL 113, 157201…