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相关论文: Spin superfluidity in noncollinear antiferromagnet…

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Ultrafast demagnetization induced by femtosecond laser pulses in thin metallic layers is caused by the outflow of spin-polarized hot electron currents describable by the superdiffusive transport model. These laser-generated spin currents…

介观与纳米尺度物理 · 物理学 2023-05-24 Pavel Baláž , Maciej Zwierzycki , Francesco Cosco , Karel Carva , Pablo Maldonado , Peter M. Oppeneer

Antiferromagnetic materials could represent the future of spintronic applications thanks to the numerous interesting features they combine: they are robust against perturbation due to magnetic fields, produce no stray fields, display…

材料科学 · 物理学 2018-02-20 V. Baltz , A. Manchon , M. Tsoi , T. Moriyama , T. Ono , Y. Tserkovnyak

This paper focuses on spin superfluid transport, observation of which was recently reported in antiferromagnet Cr$_2$O$_3$ [Yuan et al., Sci. Adv. 4, eaat1098 (2018)]. This paper analyzes the role of dissipation in transformation of spin…

介观与纳米尺度物理 · 物理学 2019-03-27 E. B. Sonin

We theoretically propose a realization of a nonlinear nonreciprocal transport in antiferromagnets without relying on the relativistic spin-orbit coupling. Through the symmetry and microscopic model analyses, we show that a local spin scalar…

强关联电子 · 物理学 2022-09-23 Satoru Hayami , Megumi Yatsushiro

We report on the consequences of non-uniform exchange in magnetic systems. The quantum mechanical exchange interaction between spins is responsible for the phenomenon of magnetic order, and is generally considered to be uniform across bulk…

材料科学 · 物理学 2021-09-22 Rair Macêdo , Arjun S. Kudinoor , Karen L. Livesey , Robert E. Camley

Spin-orbit coupling and breaking of inversion symmetry are necessary ingredients to enable a pure spin current-based manipulation of the magnetization via the spin-orbit torque effect. Currently, magnetic insulator oxides with…

We study ultracold bosonic atoms with the synthetic three-dimensional spin-orbit (SO) coupling in a cubic optical lattice. In the superfluidity phase, the lowest energy band exhibits one, two or four pairs of degenerate single-particle…

量子气体 · 物理学 2013-07-15 Dan-Wei Zhang , Ji-Pei Chen , Chuan-Jia Shan , Z. D. Wang , Shi-Liang Zhu

The discovery of correlated insulating states in moir\'e heterostructures has renewed the interest in strongly-coupled electron systems where spin and valley (or layer) degrees of freedom are intertwined. In the strong-coupling limit, such…

强关联电子 · 物理学 2023-07-10 Lasse Gresista , Dominik Kiese , Simon Trebst , Michael M. Scherer

Spin-charge conversion via spin-orbit interaction is one of the core concepts in the current spintronics research. The efficiency of the interconversion between charge and spin current is estimated based on Berry curvature of Bloch…

强关联电子 · 物理学 2021-06-11 Y. Kozuka , S. Isogami , K. Masuda , Y. Miura , Saikat Das , J. Fujioka , T. Ohkubo , S. Kasai

The Stoner instability remains a cornerstone for understanding metallic ferromagnets. This instability captures the interplay of Coulomb repulsion, Pauli exclusion, and two-fold fermionic spin degeneracy. In materials with spin-orbit…

强关联电子 · 物理学 2024-11-13 Yue Yu , Tatsuya Shishidou , Shuntaro Sumita , Michael Weinert , Daniel F. Agterberg

Spin injection is a powerful experimental probe into a wealth of nonequilibrium spin-dependent phenomena displayed by materials with spin-orbit coupling (SOC). Here, we develop a theory of coupled spin-charge diffusive transport in…

介观与纳米尺度物理 · 物理学 2019-12-25 Yu-Hsuan Lin , Chunli Huang , Manuel Offidani , Aires Ferreira , Miguel A. Cazalilla

An electrical current can transfer spin angular momentum to a ferromagnet. This novel physical phenomenon, called spin transfer, offers unprecedented spatial and temporal control over the magnetic state of a ferromagnet and has tremendous…

材料科学 · 物理学 2007-05-23 Z. Wei , A. Sharma , A. S. Nunez , P. M. Haney , R. A. Duine , J. Bass , A. H. MacDonald , M. Tsoi

Inelastic neutron scattering measurements have been performed to investigate the spin waves of the quasi-one-dimensional antiferromagnetic ladder compound BaFe$_2$S$_3$, where a superconducting transition was observed under pressure [H.…

In order to derive tensorial exchange interactions and local magnetic anisotropies in itinerant magnetic systems, an approach combining the Spin-Cluster Expansion with the Relativistic Disordered Local Moment scheme is introduced. The…

强关联电子 · 物理学 2015-05-20 L. Szunyogh , L. Udvardi , J. Jackson , U. Nowak , R. Chantrell

The possible explanation of the long-range proximity effect observed in the single-crystalline cobalt nanowire sandwiched between two tungsten superconducting electrodes [Wang, M. \textit{et al}. \textit{ Nat. Phys}. \textbf{6}, 389 (2010)]…

超导电性 · 物理学 2018-03-14 M. V. Avdeev , Yu. N. Proshin

We apply mean-field theory and Hirsch-Fye quantum Monte Carlo method to study the spin-spin interaction in the bulk of three-dimensional topological insulators. We find that the spin-spin interaction has three different components: the…

强关联电子 · 物理学 2014-03-12 Jinhua Sun , Liang Chen , Hai-Qing Lin

The interplay between spin and heat currents at magnetic insulator|nonmagnetic metal interfaces has been a subject of much scrutiny because of both fundamental physics and the promise for technological applications. While ferrimagnetic and,…

介观与纳米尺度物理 · 物理学 2019-06-13 Benedetta Flebus , Yaroslav Tserkovnyak , Gregory A. Fiete

We investigate phonon spin transport in an insulating ferromagnet-nonmagnet-ferromagnet heterostructure. We show that the magnetoelastic interaction between the spins and the phonons leads to nonlocal spin transfer between the magnets. This…

介观与纳米尺度物理 · 物理学 2020-03-19 Andreas Rückriegel , Rembert A. Duine

We formulate a quantitative theory of non-local electron transport in three-terminal disordered ferromagnet-superconductor-ferromagnet structures. We demonstrate that magnetic effects have different implications: While strong exchange field…

超导电性 · 物理学 2010-07-29 Mikhail S. Kalenkov , Andrei D. Zaikin

We report on nonlocal spin transport in mesoscopic superconducting aluminum wires in contact with the ferromagnetic insulator europium sulfide. We find spin injection and long-range spin transport in the regime of the exchange splitting…

超导电性 · 物理学 2014-10-17 M. J. Wolf , C. Sürgers , G. Fischer , D. Beckmann