Spin Relaxation in Single-Layer and Bilayer Graphene

被引：305
|
作者：
Han, Wei [1 ]
Kawakami, R. K. [1 ]
机构：
[1] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 04期
基金：
美国国家科学基金会;
关键词：
ELECTRICAL DETECTION; PRECESSION; TRANSPORT;
D O I：
10.1103/PhysRevLett.107.047207
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate spin relaxation in graphene spin valves and observe strongly contrasting behavior for single-layer graphene (SLG) and bilayer graphene (BLG). In SLG, the spin lifetime (tau(s)) varies linearly with the momentum scattering time (tau(p)) as carrier concentration is varied, indicating the dominance of Elliot-Yafet (EY) spin relaxation at low temperatures. In BLG, tau(s) and tau(p) exhibit an inverse dependence, which indicates the dominance of Dyakonov-Perel spin relaxation at low temperatures. The different behavior is due to enhanced screening and/or reduced surface sensitivity of BLG, which greatly reduces the impurity-induced EY spin relaxation.
引用
收藏
页数：4
相关论文
共 50 条
  • [41] First-principles calculations of the optical response of single-layer and bilayer armchair graphene nanoribbons
    Ge, Yijun
    Fisher, Timothy S.
    FRONTIERS IN NANOTECHNOLOGY, 2022, 4
  • [42] Intravalley spin-flip relaxation dynamics in single-layer WS2
    Wang, Z.
    Molina-Sanchez, A.
    PAltmann
    Sangalli, D.
    De Fazio, D.
    Soavi, G.
    Sassi, U.
    Bottegoni, F.
    Ciccacci, F.
    Finazzi, M.
    Wirtz, L.
    Ferrari, A. C.
    Marini, A.
    Cerullo, G.
    Dal Conte, S.
    2019 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC), 2019,
  • [43] Optical properties of single-layer and bilayer arsenene phases
    Kecik, D.
    Durgun, E.
    Ciraci, S.
    PHYSICAL REVIEW B, 2016, 94 (20)
  • [44] Intravalley Spin-Flip Relaxation Dynamics in Single-Layer WS2
    Wang, Zilong
    Molina-Sanchez, Alejandro
    Altmann, Patrick
    Sangalli, Davide
    De Fazio, Domenico
    Soavi, Giancarlo
    Sassi, Ugo
    Bottegoni, Federico
    Ciccacci, Franco
    Finazzi, Marco
    Wirtz, Ludger
    Ferrari, Andrea C.
    Marini, Andrea
    Cerullo, Giulio
    Dal Conte, Stefano
    NANO LETTERS, 2018, 18 (11) : 6882 - 6891
  • [45] Spin polarization of single-layer graphene epitaxially grown on Ni(111) thin film
    Entani, Shiro
    Kurahashi, Mitsunori
    Sun, Xia
    Yamauchi, Yasushi
    CARBON, 2013, 61 : 134 - 139
  • [46] Features due to spin-orbit coupling in the optical conductivity of single-layer graphene
    Ingenhoven, P.
    Bernad, J. Z.
    Zuelicke, U.
    Egger, R.
    PHYSICAL REVIEW B, 2010, 81 (03)
  • [47] Spin orientation transition across the single-layer graphene/nickel thin film interface
    Matsumoto, Yoshihiro
    Entani, Shiro
    Koide, Akihiro
    Ohtomo, Manabu
    Avramov, Pavel V.
    Naramoto, Hiroshi
    Amemiya, Kenta
    Fujikawa, Takashi
    Sakai, Seiji
    JOURNAL OF MATERIALS CHEMISTRY C, 2013, 1 (35) : 5533 - 5537
  • [48] Terahertz Induced Transparency in Single-Layer Graphene
    Paul, Michael J.
    Lee, Bvounghwak
    Wardini, Jenna L.
    Thompson, Zack J.
    Stickel, Andrew D.
    Mousavian, Ali
    Minot, Ethan D.
    Lee, Yun-Shik
    2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2014,
  • [49] Flexible, Transparent Single-Layer Graphene Earphone
    Tian, He
    Yang, Yi
    Li, Cheng
    Mohammad, Mohammad Ali
    Ren, Tian-Ling
    2014 IEEE INTERNATIONAL ELECTRON DEVICES MEETING (IEDM), 2014,
  • [50] Joule heater based on single-layer graphene
    Smovzh, Dmitry Vladimirovich
    Kostogrud, Ilya Alexeevich
    Boyko, Evgeny Victorovich
    Matochkin, Pavel Evgenyevich
    Pilnik, Andrey Alexandrovich
    NANOTECHNOLOGY, 2020, 31 (33)
12345