Orbital relaxation length from first-principles scattering calculations

被引:8
|
作者
Rang, Max [1 ]
Kelly, Paul J. [1 ]
机构
[1] Univ Twente, Fac Sci & Technol, POB 217, NL-7500 AE Enschede, Netherlands
关键词
SPIN; EXCHANGE;
D O I
10.1103/PhysRevB.109.214427
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The orbital Hall effect generates a current of orbital angular momentum perpendicular to a charge current. Experiments suggest that this orbital current decays on a long length scale that is of the order of the spin-flip diffusion length or longer. We examine this suggestion using first-principles quantum mechanical scattering calculations to study the decay of orbital currents injected from an orbitally polarized lead into thermally disordered bulk systems of selected transition metals. We find that the decay occurs over only a few atomic layers. On this length scale the orbital current may be converted into a spin current if the spin Hall angle is sufficiently large, as for Pt. In Cu, Cr, and V with small spin Hall angles, the conversion into a spin current is negligible in the bulk and significant conversion only occurs at interfaces.
引用
收藏
页数:6
相关论文
共 50 条
  • [21] Site preferences in β-sialon from first-principles calculations
    Fang, CM
    Metselaar, R
    JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (02) : 335 - 337
  • [22] Topological semimetals predicted from first-principles calculations
    Weng, Hongming
    Dai, Xi
    Fang, Zhong
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2016, 28 (30)
  • [23] First-principles calculations of pyridines: From monomer to polymer
    Vaschetto, ME
    Retamal, BA
    Monkman, AP
    Springborg, M
    JOURNAL OF PHYSICAL CHEMISTRY A, 1999, 103 (50): : 11096 - 11103
  • [24] Topological insulators from the perspective of first-principles calculations
    Zhang, Haijun
    Zhang, Shou-Cheng
    PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2013, 7 (1-2): : 72 - 81
  • [25] Topological semimetals from the perspective of first-principles calculations
    Li, Jiaheng
    Zhang, Zetao
    Wang, Chong
    Huang, Huaqing
    Gu, Bing-Lin
    Duan, Wenhui
    JOURNAL OF APPLIED PHYSICS, 2020, 128 (19)
  • [26] Phase stability of ZnO from first-principles calculations
    Wrobel, Jan
    Piechota, Jacek
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (06)
  • [27] Understanding ceria nanoparticles from first-principles calculations
    Loschen, Christoph
    Bromley, Stefan T.
    Neyman, Konstantin M.
    Illas, Francesc
    JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (28): : 10142 - 10145
  • [28] Characterization of platinum nitride from first-principles calculations
    Yildiz, A.
    Akinci, Ue
    Gulseren, O.
    Sokmen, I.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (48)
  • [29] The properties of BiSb nanoribbons from first-principles calculations
    Lv, H. Y.
    Liu, H. J.
    Tan, X. J.
    Pan, L.
    Wen, Y. W.
    Shi, J.
    Tang, X. F.
    NANOSCALE, 2012, 4 (02) : 511 - 517
  • [30] Heat transport in silicon from first-principles calculations
    Esfarjani, Keivan
    Chen, Gang
    Stokes, Harold T.
    PHYSICAL REVIEW B, 2011, 84 (08)