Tunneling in the quantum Hall regime between orthogonal quantum wells

M. Huber; M. Grayson; M. Rother; R. A. Deutschmann; W. Biberacher; W. Wegscheider; M. Bichler; G. Abstreiter

doi:10.1016/S1386-9477(01)00283-1

Tunneling in the quantum Hall regime between orthogonal quantum wells

M. Huber
, M. Grayson
, M. Rother
, R. A. Deutschmann
, W. Biberacher
, W. Wegscheider
, M. Bichler
, G. Abstreiter

Natural Sciences

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

14 Scopus citations

Abstract

We present experimental investigations of tunneling between two quantum wells forming a T-shaped structure. At zero magnetic field we observe a nonlinear tunnel characteristic with clearly pronounced negative differential resistance. With magnetic field B, both quantum wells can independently be set in a quantum Hall state. We demonstrate spectroscopy of Quantum Hall bulk states in one B field orientation, and spectroscopy of edge states with the orthogonal orientation. The observed features can be explained assuming that transverse momentum is conserved during tunneling.

Original language	English
Pages (from-to)	125-128
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	12
Issue number	1-4
DOIs	https://doi.org/10.1016/S1386-9477(01)00283-1
State	Published - Jan 2002
Event	14th International Conference on the - Prague, Czech Republic Duration: 30 Jul 2001 → 3 Aug 2001

Keywords

Quantum Hall effect
Tunneling

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10.1016/S1386-9477(01)00283-1

Cite this

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title = "Tunneling in the quantum Hall regime between orthogonal quantum wells",

abstract = "We present experimental investigations of tunneling between two quantum wells forming a T-shaped structure. At zero magnetic field we observe a nonlinear tunnel characteristic with clearly pronounced negative differential resistance. With magnetic field B, both quantum wells can independently be set in a quantum Hall state. We demonstrate spectroscopy of Quantum Hall bulk states in one B field orientation, and spectroscopy of edge states with the orthogonal orientation. The observed features can be explained assuming that transverse momentum is conserved during tunneling.",

keywords = "Quantum Hall effect, Tunneling",

author = "M. Huber and M. Grayson and M. Rother and Deutschmann, \{R. A.\} and W. Biberacher and W. Wegscheider and M. Bichler and G. Abstreiter",

year = "2002",

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doi = "10.1016/S1386-9477(01)00283-1",

language = "English",

volume = "12",

pages = "125--128",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier B.V.",

number = "1-4",

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TY - JOUR

T1 - Tunneling in the quantum Hall regime between orthogonal quantum wells

AU - Huber, M.

AU - Grayson, M.

AU - Rother, M.

AU - Deutschmann, R. A.

AU - Biberacher, W.

AU - Wegscheider, W.

AU - Bichler, M.

AU - Abstreiter, G.

PY - 2002/1

Y1 - 2002/1

N2 - We present experimental investigations of tunneling between two quantum wells forming a T-shaped structure. At zero magnetic field we observe a nonlinear tunnel characteristic with clearly pronounced negative differential resistance. With magnetic field B, both quantum wells can independently be set in a quantum Hall state. We demonstrate spectroscopy of Quantum Hall bulk states in one B field orientation, and spectroscopy of edge states with the orthogonal orientation. The observed features can be explained assuming that transverse momentum is conserved during tunneling.

AB - We present experimental investigations of tunneling between two quantum wells forming a T-shaped structure. At zero magnetic field we observe a nonlinear tunnel characteristic with clearly pronounced negative differential resistance. With magnetic field B, both quantum wells can independently be set in a quantum Hall state. We demonstrate spectroscopy of Quantum Hall bulk states in one B field orientation, and spectroscopy of edge states with the orthogonal orientation. The observed features can be explained assuming that transverse momentum is conserved during tunneling.

KW - Quantum Hall effect

KW - Tunneling

UR - https://www.scopus.com/pages/publications/0035239513

U2 - 10.1016/S1386-9477(01)00283-1

DO - 10.1016/S1386-9477(01)00283-1

M3 - Conference article

AN - SCOPUS:0035239513

SN - 1386-9477

VL - 12

SP - 125

EP - 128

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-4

T2 - 14th International Conference on the

Y2 - 30 July 2001 through 3 August 2001

ER -

Tunneling in the quantum Hall regime between orthogonal quantum wells

Abstract

Keywords

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