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相关论文: Spin-charge conversion in NiMnSb Heusler alloy fil…

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We theoretically study a finite size $SF_1NF_2$ spin valve, where a normal metal ($N$) insert separates a thin standard ferromagnet ($F_1$) and a thick half-metallic ferromagnet ($F_2$). For sufficiently thin superconductor ($S$) widths…

超导电性 · 物理学 2018-03-12 Klaus Halterman , Mohammad Alidoust

Multi-directional spin-to-charge conversion - in which spin polarizations with different orientations can be converted into a charge current in the same direction - has been demonstrated in low-symmetry materials and interfaces. This is…

介观与纳米尺度物理 · 物理学 2023-09-06 Nerea Ontoso , C. K. Safeer , Josep Ingla-Aynés , Franz Herling , Luis E. Hueso , M. Reyes Calvo , Fèlix Casanova

Strong spin-orbit coupling, resulting in the formation of spin-momentum-locked surface states, endows topological insulators with superior spin-to-charge conversion characteristics, though the dynamics that govern it have remained elusive.…

An outstanding feature of topological quantum materials is their novel spin topology in the electronic band structures with an expected large charge-to-spin conversion efficiency. Here, we report a charge current-induced spin polarization…

Properties are discussed of a ferromagnetic junction of the type "rod contacting with film". Very high current density of the order of $10^9$ A/cm$^2$ may be achieved in the contact region. We show it can lead to inversion of population of…

材料科学 · 物理学 2010-05-11 S. G. Chigarev , E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

Spin injection using ferromagnetic semiconductors at room temperature is a building block for the realization of spin-functional semiconductor devices. Nevertheless, this has been very challenging due to the lack of reliable…

材料科学 · 物理学 2021-06-11 Shobhit Goel , Nguyen Huynh Duy Khang , Le Duc Anh , Pham Nam Hai , Masaaki Tanaka

Transition-metal dichalcogenides (TMDCs) are an aspiring class of materials with unique electronic and optical properties and potential applications in spin-based electronics. Here, we use terahertz emission spectroscopy to study…

Using \textit{ab initio} calculation, we investigate systematically the structural and electronic properties of Ni$_{2}$Nb$_{1+x}$Sn$_{1-x}$ ($x$ = 0, 0.25, 0.50). Here, projector augmented wave approach (PAW) implemented in the Vienna…

材料科学 · 物理学 2013-04-08 Soumyadipta Pal

We report a systematic study of current-induced perpendicular magnetization switching in W/Co$_{x}$Tb$_{1-x}$/Al thin films with strong perpendicular magnetic anisotropy. Various Co$_{x}$Tb$_{1-x}$ ferrimagnetic alloys with different…

Using a state-of-the-art full-potential electronic structure method within the local spin density approximation, we study the electronic and magnetic structure of Mn$_2$V-based full Heusler alloys: Mn$_2$VZ (Z=Al, Ga, In, Si, Ge, and Sn).…

材料科学 · 物理学 2007-05-23 K Ozdogan , I Galanakis , E Sasioglu , B Aktas

Noncollinear magnets provide essential ingredients for the next generation memory technology. It is a new prospect for the Heusler materials, already well known due to the diverse range of other fundamental characteristics. Here, we present…

The triangular spin lattice of NiBr$_{2}$ is a canonical example of a frustrated helimagnet that shows a temperature-driven phase transition from a collinear commensurate antiferromagnetic structure to an incommensurate spin helix on…

材料科学 · 物理学 2019-03-19 S. Babu , K. Prokes , Y. K. Huang , F. Radu , S. K. Mishra

We investigate the suitability of nearly half-metallic ferrimagnetic quaternary Heusler alloys, CoCrMnZ (Z=Al, Ga, Si, Ge) to assess the feasibility as electrode materials of MgO-based magnetic tunnel junctions (MTJ). Low magnetic moments…

材料科学 · 物理学 2023-10-27 Tufan Roy , Masahito Tsujikawa , Masafumi Shirai

Half-Heusler compounds with 18 valence electrons per unit cell are well-known non-magnetic semiconductors. Employing first-principles electronic band structure calculations, we study the interface properties of the half-Heusler…

材料科学 · 物理学 2023-02-10 Emel Gurbuz , Sukanya Ghosh , Ersoy Sasioglu , Iosif Galanakis , Ingrid Mertig , Biplab Sanyal

Spin injection efficiency based on conventional ferromagnet (or half-metallic ferromagnet) /semiconductor is greatly limited by the Schmidt obstacle due to conductivity mismatch, here we proposed that by replacing the metallic injectors…

介观与纳米尺度物理 · 物理学 2014-12-01 G. Z. Xu , W. H. Wang , X. M. Zhang , Y. Wang , E. K. Liu , X. K. Xi , G. H. Wu

Using thermal tensor-network approach, we investigate the spin Seebeck effect (SSE) of the triangular-lattice quantum antiferromagnet hosting spin supersolid phase. We focus on the low-temperature scaling behaviors of the normalized spin…

强关联电子 · 物理学 2025-12-17 Yuan Gao , Yixuan Huang , Sadamichi Maekawa , Wei Li

A new magnetic logic overcomes the major limitations of field programmable gate arrays while having a 50% smaller unit cell than conventional designs utilizing magnetic tunnel junctions with one Heusler alloy electrode. These show positive…

We investigate the effect of Mn substitution in Fe$_2$Ti$_{1-x}$Mn$_x$Sn on electronic structure and magnetic and electrical transport properties. The spin-polarized density of states calculations using density-functional theory (DFT)…

材料科学 · 物理学 2025-08-20 Kulbhushan Mishra , Shishir Kumar Pandey , S. Chaudhuri , Rajeev Rawat , P. A. Bhobe

The density of non-quasiparticle states in the ferrimagnetic full-Heuslers Mn$_2$VAl alloy is calculated from first principles upon appropriate inclusion of correlations. In contrast to most half-metallic compounds, this material displays…

材料科学 · 物理学 2014-04-15 L. Chioncel , E. Arrigoni , M. I. Katsnelson , A. I. Lichtenstein

Controlling magnetism and electronic properties of two-dimensional (2D) materials by purely electrical means is crucial and highly sought for high-efficiency spintronics devices since electric field can be easily applied locally compared…

材料科学 · 物理学 2022-05-18 Yu Chen , Qiang Fan , Yiding Liu , Gang Yao