Shubnikov{endash}de Haas oscillations in a two-dimensional electron gas in a spatially random magnetic field

Journal Article · Fri Mar 01 00:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.R7599· OSTI ID:279784

Mancoff, F B; Zielinski, L J; Marcus, C M ^[1]; Campman, K; Gossard, A C ^[2]

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1. Department of Physics, Stanford University, Stanford, California 94305-4060 (United States)
2. Materials Department, University of California at Santa Barbara, Santa Barbara, California 93106 (United States)

We report measurements of transport in a two-dimensional electron gas in a spatially random magnetic field in which the average magnetic field extends from the classical regime {l_angle}{omega}{sub {ital c}}{r_angle}{tau}{lt}1 into the quantum Hall regime. Experiments make use of a rough Nd-Fe-B permanent magnet on the surface of a GaAs heterostructure. Effective mass, transport and total scattering times, and {ital g}-factor-enhancement values (all measured from Shubnikov{endash}de Haas oscillations) are comparable to those found for potential scattering in a uniform magnetic field. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 279784
• Journal Information: Physical Review, B: Condensed Matter, Vol. 53, Issue 12; Other Information: PBD: Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRON GAS
SHUBNIKOV-DE HAAS EFFECT
IRON BORIDES
NEODYMIUM BORIDES
EFFECTIVE MASS
G VALUE
HALL EFFECT
MAGNETIC FIELDS
RANDOMNESS
QUANTUM HALL EFFECT
TWO-DIMENSIONAL SYSTEMS