Anisotropic magnetoresistance in a two-dimensional electron gas in a quasirandom magnetic field

被引：7
|
作者：
Rushforth, AW
Gallagher, BL
Main, PC
Neumann, AC
Henini, M
Marrows, CH
Hickey, BJ
机构：
[1] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
[2] Univ Leeds, Dept Phys, Leeds LS2 9JT, W Yorkshire, England
来源：
PHYSICAL REVIEW B | 2004年 / 70卷 / 19期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1103/PhysRevB.70.193313
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present magnetotransport results for a two-dimensional electron gas (2DEG) subject to the quasirandom magnetic field produced by randomly positioned submicron Co dots deposited onto the surface of a GaAs/AlxGa1-xAs heterostructure. We observe strong local and nonlocal anisotropic magnetoresistance for external magnetic fields in the plane of the 2DEG. Monte Carlo calculations confirm that this is due to the changing topology of the quasirandom magnetic field in which electrons are guided predominantly along contours of zero magnetic field.
引用
收藏
页码：1 / 4
页数：4
相关论文
共 50 条
  • [1] Magnetoresistance of a two-dimensional electron gas in a parallel magnetic field
    V. T. Dolgopolov
    A. Gold
    [J]. Journal of Experimental and Theoretical Physics Letters, 2000, 71 : 27 - 30
  • [2] Magnetoresistance of a two-dimensional electron gas in a parallel magnetic field
    Dolgopolov, VT
    Gold, A
    [J]. JETP LETTERS, 2000, 71 (01) : 27 - 30
  • [3] Magnetoresistance of a modulated two-dimensional electron gas in a parallel magnetic field
    Nauen, A
    Zeitler, U
    Haug, RJ
    Jansen, AGM
    Dilger, M
    Eberl, K
    [J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2002, 13 (2-4): : 732 - 735
  • [4] The magnetoresistance of a two-dimensional electron gas in the presence of a spatially random magnetic field
    Rushforth, AW
    Gallagher, BL
    Main, PC
    Marrows, CH
    Hickey, BJ
    Dahlberg, ED
    Neumann, AC
    Henini, M
    [J]. PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, 2001, 87 : 747 - 748
  • [5] Quasiclassical negative magnetoresistance of a two-dimensional electron gas in a random magnetic field
    Bykov, AA
    Gusev, GM
    Leite, JR
    Bakarov, AK
    Goran, AV
    Kudryashev, VM
    Toropov, AI
    [J]. PHYSICAL REVIEW B, 2002, 65 (03): : 1 - 7
  • [6] Ergodic approach to magnetoresistance of a two-dimensional electron gas in a random magnetic field
    Calvo, M
    [J]. PHYSICAL REVIEW B, 1998, 57 (08): : R4241 - R4244
  • [7] Magnetoresistance of the Two-Dimensional Electron Gas in GaN Quantum Wells in a Parallel Magnetic Field
    A. Gold
    V. T. Dolgopolov
    [J]. Journal of Superconductivity, 2003, 16 : 307 - 308
  • [8] Magnetoresistance of the two-dimensional electron gas in GaN quantum wells in a parallel magnetic field
    Gold, A
    Dolgopolov, VT
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 2003, 16 (02): : 307 - 308
  • [9] Magnetoresistance of a two-dimensional electron gas in random magnetic fields
    Hansen, LT
    Taboryski, R
    Smith, A
    Lindelof, PE
    Hedegard, P
    [J]. SURFACE SCIENCE, 1996, 361 (1-3) : 349 - 352
  • [10] Magnetoresistance quantum oscillations in a magnetic two-dimensional electron gas
    Kunc, J.
    Piot, B. A.
    Maude, D. K.
    Potemski, M.
    Grill, R.
    Betthausen, C.
    Weiss, D.
    Kolkovsky, V.
    Karczewski, G.
    Wojtowicz, T.
    [J]. PHYSICAL REVIEW B, 2015, 92 (08):
12345