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

^*Corresponding author for this work

Electrical and Computer Engineering

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

13 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 (US)
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: Jul 30 2001 → Aug 3 2001

Keywords

Quantum Hall effect
Tunneling

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Access to Document

10.1016/S1386-9477(01)00283-1

Cite this

@article{3ff9270b71e348559fb325c9b091adcb,

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",

note = "Funding Information: This work was supported by DFG-Schwerpunktprogramm “Quanten-Hall-Systeme”. ; 14th International Conference on the ; Conference date: 30-07-2001 Through 03-08-2001",

year = "2002",

month = jan,

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

language = "English (US)",

volume = "12",

pages = "125--128",

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

issn = "1386-9477",

publisher = "Elsevier",

number = "1-4",

}

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.

N1 - Funding Information: This work was supported by DFG-Schwerpunktprogramm “Quanten-Hall-Systeme”.

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 - http://www.scopus.com/inward/record.url?scp=0035239513&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035239513&partnerID=8YFLogxK

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

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this