Magnetoresistance of a two-dimensional electron gas due to a single magnetic barrier and its use for nanomagnetometry

被引：198
|
作者：
Kubrak, V [1 ]
Rahman, F
Gallagher, BL
Main, PC
Henini, M
Marrows, CH
Howson, MA
机构：
[1] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
[2] Univ Leeds, Dept Phys & Astron, Leeds LS9 2JT, W Yorkshire, England
来源：
APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 17期
关键词：
D O I：
10.1063/1.123022
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate the longitudinal resistance of a semiconductor near-surface two-dimensional electron gas (2DEG) subjected to a magnetic barrier induced by the stray field from a single sub-micron ferromagnetic line on the surface of the device. The amplitude of the magnetic barrier is controlled by the application of an external magnetic field in the plane of the 2DEG. We show that this type of magnetoresistance can be used to deduce properties of the ferromagnetic line, so that our hybrid ferromagnet-semiconductor structure acts as a nanomagnetometer. (C) 1999 American Institute of Physics. [S0003-6951(99)02317-7].
引用
收藏
页码：2507 / 2509
页数：3
相关论文
共 50 条
  • [21] Magnetic barrier in a two-dimensional hole gas
    Cerchez, M.
    Heinzel, T.
    Reuter, D.
    Wieck, A. D.
    SUPERLATTICES AND MICROSTRUCTURES, 2009, 46 (04) : 723 - 727
  • [22] Magnetoresistance of the Two-Dimensional Electron Gas in GaN Quantum Wells in a Parallel Magnetic Field
    A. Gold
    V. T. Dolgopolov
    Journal of Superconductivity, 2003, 16 : 307 - 308
  • [23] Series of magnetoresistance oscillations of a two-dimensional electron gas in a strong periodic magnetic modulation
    Shi, QW
    Szeto, KY
    PHYSICAL REVIEW B, 1997, 55 (07): : 4558 - 4562
  • [24] Magnetoresistance of the two-dimensional electron gas in GaN quantum wells in a parallel magnetic field
    Gold, A
    Dolgopolov, VT
    JOURNAL OF SUPERCONDUCTIVITY, 2003, 16 (02): : 307 - 308
  • [25] Magnetoresistance oscillation in two-dimensional electron gas under spatially modulated magnetic field
    Izawa, Shu-ichi
    Katsumoto, Shingo
    Endo, Akira
    Iye, Yasuhiro
    Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes & Review Papers, 1995, 34 (8 B): : 4306 - 4308
  • [26] Giant magnetoresistance in a two-dimensional electron gas modulated by periodically repeated magnetic barriers
    Papp, G.
    Borza, S.
    SOLID STATE COMMUNICATIONS, 2010, 150 (41-42) : 2023 - 2027
  • [27] Dephasing time and magnetoresistance of two-dimensional electron gas in spatially modulated magnetic fields
    Mel'nikov, A. S.
    Mironov, S. V.
    Sharov, S. V.
    PHYSICAL REVIEW B, 2010, 81 (11):
  • [28] Magnetoresistance and dephasing in a two-dimensional electron gas at intermediate conductances
    Minkov, GM
    Germanenko, AV
    Gornyi, IV
    PHYSICAL REVIEW B, 2004, 70 (24) : 1 - 24
  • [29] Magnetoresistance in a high-mobility two-dimensional electron gas
    Bockhorn, L.
    Barthold, P.
    Schuh, D.
    Wegscheider, W.
    Haug, R. J.
    PHYSICAL REVIEW B, 2011, 83 (11):
  • [30] Interaction-induced magnetoresistance in a two-dimensional electron gas
    Gornyi, IV
    Mirlin, AD
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 22 (1-3): : 260 - 263
12345