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Spin-polarized supercurrents can be generated with magnetic inhomogeneity at a ferromagnet/spin-singlet-superconductor interface. In such systems, complex magnetic inhomogeneity makes it difficult to functionalise the spin-polarized…

超导电性 · 物理学 2019-11-04 M. S. Anwar , M. Kunieda , R. Ishiguro , S. R. Lee , C. Sow , J. W. A. Robinson , S. Yonezawa , T. W. Noh , Y. Maeno

Boundary conditions for order parameters at an interface between ferromagnetic (FM) and two-sublattice antiferromagnetic (AFM) materials were obtained in the continuous medium approximation similarly to the approach which allows one to take…

应用物理 · 物理学 2020-03-10 Oksana Busel , Oksana Gorobets , Yuri Gorobets

We present a low-energy muon-spin-rotation study of the magnetic and superconducting properties of YBa2Cu3O7/PrBa2Cu3O7 trilayer and bilayer heterostructures. By determining the magnetic-field profiles throughout these structures we show…

We show that spin-orbit coupling at the interface between a superconducting film of the finite lateral size and the underlying ferromagnetic insulator with in-plane exchange field gives rise to a series of non-reciprocal effects provided…

超导电性 · 物理学 2023-12-21 A. V. Putilov , S. V. Mironov , A. I. Buzdin

We report on the microscopic model of the recently synthesized one-dimensional quantum magnet (NO)Cu(NO3)3. Applying density functional theory band structure calculations, we obtain a leading antiferromagnetic exchange coupling J ~ 200 K,…

强关联电子 · 物理学 2010-11-15 O. Janson , A. A. Tsirlin , H. Rosner

In the past year, several groups have observed evidence for long-range spin-triplet supercurrent in Josephson junctions containing ferromagnetic (F) materials. In our work, the spin-triplet pair correlations are created by non-collinear…

Spin-polarized currents play a key role in spintronics. Recently, it has been found that antiferromagnets with a non-spin-degenerate band structure can efficiently spin-polarize electric currents, even though their net magnetization is…

材料科学 · 物理学 2021-12-20 Gautam Gurung , Ding-Fu Shao , Evgeny Y. Tsymbal

Spin superfluid is a novel emerging quantum matter arising from the Bose-Einstein condensate (BEC) of spin-1 bosons. We demonstrate the spin superfluid ground state in canted antiferromagnetic Cr2O3 thin film at low temperatures via…

We study the magnetic properties of the adatom systems on a semiconductor surface Si(111):\{C,Si,Sn,Pb\} - ($\sqrt{3} \times \sqrt{3}$). On the basis of all-electron density functional theory calculations we construct effective low-energy…

强关联电子 · 物理学 2016-12-28 D. I. Badrtdinov , S. A. Nikolaev , M. I. Katsnelson , V. V. Mazurenko

Antiferromagnetic spintronics is an emerging area of quantum technologies that leverage the coupling between spin and orbital degrees of freedom in exotic materials. Spin-orbit interactions allow spin or angular momentum to be injected via…

The coupling between two ferromagnets separated by a superconductor has been mostly investigated for the case of Cooper pairs with spin-singlet symmetry. Here, we consider a spin-triplet superconductor with chiral pairing. By full…

超导电性 · 物理学 2024-08-20 Alfonso Romano , Canio Noce , Mario Cuoco

The interplay between unconventional superconductivity and altermagnetic order has attracted much attentions. In particular, whether spin-triplet superconductivity can be achieved by suppressing altermagnetism remains an open issue. We…

超导电性 · 物理学 2025-09-15 Xin Ma , Siqi Wu , Zilong Li , Lunhui Hu , Jianhui Dai , Chao Cao

We theoretically investigate laser-induced spin transport in metallic magnetic heterostructures using an effective spin transport description that treats itinerant electrons and thermal magnons on an equal footing. Electron-magnon…

介观与纳米尺度物理 · 物理学 2022-04-27 Maarten Beens , Rembert A. Duine , Bert Koopmans

Nanoscale superlattices with uniaxial ferromagnetic layers antiferromagnetically coupled through non-magnetic spacers are recently used as components of magnetoresistive and recording devices. In the last years intensive experimental…

材料科学 · 物理学 2015-06-24 U. K. Roessler , A. N. Bogdanov

Spin waves in magnetic materials are promising information carriers for future computing technologies due to their ultra-low energy dissipation and long coherence length. Antiferromagnets are strong candidate materials due, in part, to…

First-principles density functional calculations show that the $\textrm{SrRuO}_{3}/\textrm{PbTiO}_{3}/\textrm{SrRuO}_{3}$ multiferroic junction with asymmetric (RuO$_{2}$/PbO and TiO$_{2}$/SrO) interfaces has a large ferroelectric…

材料科学 · 物理学 2013-12-20 Francesco Ricci , Alessio Filippetti , Vincenzo Fiorentini

We report transport and inelastic neutron scattering studies on electronic properties and spin dynamics of the quasi-one-dimensional spin chain antiferromagnet RbFeS$_2$. An antiferromagnetic phase transition at $T_N\approx195$ K and…

The long-range spin-triplet supercurrent transport is an interesting phenomenon in the superconductor/ferromagnet ($S/F$) heterostructure containing noncollinear magnetic domains. Here we study the long-range superharmonic Josephson current…

超导电性 · 物理学 2015-10-27 Hao Meng , Jiansheng Wu , Xiuqiang Wu , Mengyuan Ren , Yajie Ren

The structural inversion asymmetry-induced spin-orbit interaction of conduction band electrons in zinc-blende and wurtzite semiconductor structures is analysed allowing for a three-dimensional (3D) character of the external electric field…

材料科学 · 物理学 2010-12-30 Eduard Takhtamirov , Roderick V. N. Melnik

We examine a modified drift-diffusion formalism to describe spin transport near an ultrathin magnet whose thickness is similar to or less than the spin dephasing length. Most of the previous theories on spin torque assume the transverse…

介观与纳米尺度物理 · 物理学 2019-06-19 Kyoung-Whan Kim