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The recent interest in non-Hermitian (NH) systems has significantly broadened their application across condensed matter physics, offering a unique framework to explore out-of-equilibrium phenomena. Simultaneously, altermagnets have emerged…

介观与纳米尺度物理 · 物理学 2026-03-10 J. H. Correa , M. P. Nowak , A. Pezo

Interfacial engineering enables various emergent effects such as spin reorientations and transport anisotropy. Noncollinear spin textures are essential for realizing many emergent quantum transport phenomena. However, driving such spin…

We investigate the the itinerant ferromagnetism in a dipolar Fermi atomic system with the anisotropic spin-orbit coupling (SOC),which is traditionally explored with isotropic contact interaction.We first study the ferromagnetism transition…

Altermagnets are an emerging class of collinear antiferromagnets that exhibit unconventional spin-polarised electronic bands, potentially unlocking new functionalities that do not rely on spin-orbit coupling (SOC). Experimental signatures…

Recent techniques have allowed transition metal dichalcogenides (TMD) monolayers to be grown and adequately characterised. Of particular interest, their nonlinear optical response presents many promising opportunities for future…

介观与纳米尺度物理 · 物理学 2020-03-06 David N. Carvalho , Fabio Biancalana

Magnons provide a route to ultra-fast transport and non-destructive readout of spin-based information transfer. Here, we report magnon transport and its emergent anisotropic nature in BiFeO$_3$ layers confined between ultrathin layers of…

Magnetic anisotropies of ferromagnetic thin films are induced by epitaxial strain from the substrate via strain-induced anisotropy in the orbital magnetic moment and that in the spatial distribution of spin-polarized electrons. However, the…

Manipulating topological disclination networks that arise in a symmetry-breaking phase transfor- mation in widely varied systems including anisotropic materials can potentially lead to the design of novel materials like conductive…

软凝聚态物质 · 物理学 2017-12-19 Amit Kumar Bhattacharjee

Altermagnets exhibit spin-split electronic bandstructures despite having zero net magnetization, making them attractive for field-free spintronic applications. In this work, we show that a finite rectangular altermagnetic sample can acquire…

介观与纳米尺度物理 · 物理学 2026-04-27 Abhiram Soori

We study magnetotransport in a holographic model where ModMax nonlinear electrodynamics is coupled to Einstein anti--de Sitter gravity. To incorporate momentum relaxation, we introduce spatially linear free scalar fields that break…

高能物理 - 理论 · 物理学 2025-10-14 José Barrientos , Nicolás Cáceres , Felipe Diaz , Ulises Hernandez-Vera

The magnetic, transport and optical properties of EuFe$_2$As$_2$ single crystals have been investigated parallel and perpendicular to the $ab$-plane. The anisotropy $\rho_c/\rho_{ab}\approx 8$ depends only slightly on temperature. In both…

The discovery of hidden spin polarization (HSP) in centrosymmetric nonmagnetic crystals, i.e., spatially distributed spin polarization originated from local symmetry breaking, has promised an expanded material pool for future spintronics.…

材料科学 · 物理学 2023-01-04 Weizhao Chen , Mingqiang Gu , Jiayu Li , Panshuo Wang , Qihang Liu

Spin superfluidity, i.e., coherent spin transport mediated by topologically stable textures, is limited by parasitic anisotropies rooted in relativistic interactions and spatial inhomogeneities. Since structural disorder in amorphous…

介观与纳米尺度物理 · 物理学 2018-08-29 Hector Ochoa , Ricardo Zarzuela , Yaroslav Tserkovnyak

A growing list of experiments show orthorhombic electronic anisotropy in the iron pnictides, in some cases at temperatures well above the spin density wave transition. These experiments include neutron scattering, resistivity and…

超导电性 · 物理学 2010-11-11 C. -C. Chen , J. Maciejko , A. P. Sorini , B. Moritz , R. R. P. Singh , T. P. Devereaux

We observe anisotropic Hanle lineshape with unequal in-plane and out-of-plane non-local signals for spin precession measurements carried out on lateral metallic spin valves with transparent interfaces. The conventional interpretation for…

介观与纳米尺度物理 · 物理学 2017-02-09 K. S. Das , F. K. Dejene , B. J. van Wees , I. J. Vera-Marun

Thermal conductivity measurements can provide key and experimentally verifiable insight into the electronic transport of unconventional superconductors. In this work, electronic thermal transport of two-dimensional tight-binding metallic…

超导电性 · 物理学 2023-08-16 Sean F Peterson , Sourav Sen Choudhury , Yves Idzerda

Transport measurements on the two dimensional electron system in Al2O3 SrTiO3 heterostructures indicate significant noncrystalline anisotropic behavior below T = 30 K. Lattice dislocations in SrTiO3 and interfacial steps are suggested to be…

强关联电子 · 物理学 2017-08-02 K. Wolff , R. Schäfer , M. Meffert , D. Gerthsen , R. Schneider , D. Fuchs

Holographic models provide unique laboratories to investigate non-linear physics of transport in inhomogeneous systems. We provide a detailed account of both DC and AC conductivities in a defect CFT with spontaneous stripe order. The…

高能物理 - 理论 · 物理学 2017-04-19 Niko Jokela , Matti Jarvinen , Matthew Lippert

Cylindrical magnetic nanowires with large transversal magnetocrystalline anisotropy have been shown to sustain non-trivial magnetic configurations resulting from the interplay of spatial confinement, exchange, and anisotropies. Exploiting…

介观与纳米尺度物理 · 物理学 2021-07-29 I. M. Andersen , D. Wolf , L. A. Rodriguez , A. Lubk , D. Oliveros , C. Bran , T. Niermann , U. K. Rößler , M. Vazquez , C. Gatel , E. Snoeck

Recent experiments on iron pnictides have uncovered a large in-plane resistivity anisotropy with a surprising result: the system conducts better in the antiferromagnetic x direction than in the ferromagnetic y direction. We address this…

超导电性 · 物理学 2010-11-11 B. Valenzuela , E. Bascones , M. J. Calderón