Breakdown of Shubnikov-de Haas oscillations in a short-period 1D lateral superlattice

R. A. Deutschmann; A. Lorke; W. Wegscheider; M. Bichler; G. Abstreiter

doi:10.1016/S1386-9477(99)00109-5

Breakdown of Shubnikov-de Haas oscillations in a short-period 1D lateral superlattice

R. A. Deutschmann, A. Lorke, W. Wegscheider, M. Bichler, G. Abstreiter

Natural Sciences

Research output: Contribution to journal › Conference article › peer-review

12 Scopus citations

Abstract

Magnetic breakdown is observed in a two-dimensional electron system subject to a strong, atomically precise, one-dimensional potential with a period of 15 nm. The transition from closed to open electron orbits is studied in magneto-transport experiments by continuously changing the Fermi energy of the superlattice within and above the first miniband. Shubnikov-de Haas oscillations quench for Fermi energies close to the miniband gap but recover at higher magnetic fields. The density of states is clearly altered from a conventional 2D system which manifests itself in aperiodic magnetooscillations when sweeping the Fermi energy at fixed magnetic fields.

Original language	English
Pages (from-to)	561-564
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	6
Issue number	1
DOIs	https://doi.org/10.1016/S1386-9477(99)00109-5
State	Published - Feb 2000
Event	13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can Duration: 1 Aug 1999 → 6 Aug 1999

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10.1016/S1386-9477(99)00109-5

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title = "Breakdown of Shubnikov-de Haas oscillations in a short-period 1D lateral superlattice",

abstract = "Magnetic breakdown is observed in a two-dimensional electron system subject to a strong, atomically precise, one-dimensional potential with a period of 15 nm. The transition from closed to open electron orbits is studied in magneto-transport experiments by continuously changing the Fermi energy of the superlattice within and above the first miniband. Shubnikov-de Haas oscillations quench for Fermi energies close to the miniband gap but recover at higher magnetic fields. The density of states is clearly altered from a conventional 2D system which manifests itself in aperiodic magnetooscillations when sweeping the Fermi energy at fixed magnetic fields.",

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T1 - Breakdown of Shubnikov-de Haas oscillations in a short-period 1D lateral superlattice

AU - Deutschmann, R. A.

AU - Lorke, A.

AU - Wegscheider, W.

AU - Bichler, M.

AU - Abstreiter, G.

PY - 2000/2

Y1 - 2000/2

N2 - Magnetic breakdown is observed in a two-dimensional electron system subject to a strong, atomically precise, one-dimensional potential with a period of 15 nm. The transition from closed to open electron orbits is studied in magneto-transport experiments by continuously changing the Fermi energy of the superlattice within and above the first miniband. Shubnikov-de Haas oscillations quench for Fermi energies close to the miniband gap but recover at higher magnetic fields. The density of states is clearly altered from a conventional 2D system which manifests itself in aperiodic magnetooscillations when sweeping the Fermi energy at fixed magnetic fields.

AB - Magnetic breakdown is observed in a two-dimensional electron system subject to a strong, atomically precise, one-dimensional potential with a period of 15 nm. The transition from closed to open electron orbits is studied in magneto-transport experiments by continuously changing the Fermi energy of the superlattice within and above the first miniband. Shubnikov-de Haas oscillations quench for Fermi energies close to the miniband gap but recover at higher magnetic fields. The density of states is clearly altered from a conventional 2D system which manifests itself in aperiodic magnetooscillations when sweeping the Fermi energy at fixed magnetic fields.

UR - https://www.scopus.com/pages/publications/0034139044

U2 - 10.1016/S1386-9477(99)00109-5

DO - 10.1016/S1386-9477(99)00109-5

M3 - Conference article

AN - SCOPUS:0034139044

SN - 1386-9477

VL - 6

SP - 561

EP - 564

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1

T2 - 13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13)

Y2 - 1 August 1999 through 6 August 1999

ER -

Breakdown of Shubnikov-de Haas oscillations in a short-period 1D lateral superlattice

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