Magnetoconductance oscillations in InGaAs/GaAs lateral surface superlattices

J. Ma; R. A. Puechner; W. P. Liu; R. Mezenner; A. M. Kriman; G. N. Maracas; D. K. Ferry; P. Chu; H. H. Wieder

doi:10.1117/12.962051

Magnetoconductance oscillations in InGaAs/GaAs lateral surface superlattices

J. Ma, R. A. Puechner, W. P. Liu, R. Mezenner, A. M. Kriman, G. N. Maracas, D. K. Ferry, P. Chu, H. H. Wieder

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3 Scopus citations

Abstract

Lateral surface superlattice (LSSL) structures have been prepared on MBE grown In0.2Ga0.8As/GaAs strained layers by electron beam lithography and metal lift-off processing. The LSSL is induced by a 160-nm period Ti/Pt/Au grid replacing the normal metal gate of a HEMT. Magnetoconductance measurements made at 5K show universal conductance fluctuations with an amplitude of 0.1e2/h and Aharonov-Bohm type periodic oscillations with h/e periodicity in the flux coupled through each cell of the superlattice. To the best of our knowledge, this is the first observation of Aharonov-Bohm effect in a solid state system that was not in a ring structure.

Original language	English (US)
Pages (from-to)	619-625
Number of pages	7
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1144
DOIs	https://doi.org/10.1117/12.962051
State	Published - Nov 28 1989

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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title = "Magnetoconductance oscillations in InGaAs/GaAs lateral surface superlattices",

abstract = "Lateral surface superlattice (LSSL) structures have been prepared on MBE grown In0.2Ga0.8As/GaAs strained layers by electron beam lithography and metal lift-off processing. The LSSL is induced by a 160-nm period Ti/Pt/Au grid replacing the normal metal gate of a HEMT. Magnetoconductance measurements made at 5K show universal conductance fluctuations with an amplitude of 0.1e2/h and Aharonov-Bohm type periodic oscillations with h/e periodicity in the flux coupled through each cell of the superlattice. To the best of our knowledge, this is the first observation of Aharonov-Bohm effect in a solid state system that was not in a ring structure.",

author = "J. Ma and Puechner, {R. A.} and Liu, {W. P.} and R. Mezenner and Kriman, {A. M.} and Maracas, {G. N.} and Ferry, {D. K.} and P. Chu and Wieder, {H. H.}",

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doi = "10.1117/12.962051",

language = "English (US)",

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TY - JOUR

T1 - Magnetoconductance oscillations in InGaAs/GaAs lateral surface superlattices

AU - Ma, J.

AU - Puechner, R. A.

AU - Liu, W. P.

AU - Mezenner, R.

AU - Kriman, A. M.

AU - Maracas, G. N.

AU - Ferry, D. K.

AU - Chu, P.

AU - Wieder, H. H.

PY - 1989/11/28

Y1 - 1989/11/28

N2 - Lateral surface superlattice (LSSL) structures have been prepared on MBE grown In0.2Ga0.8As/GaAs strained layers by electron beam lithography and metal lift-off processing. The LSSL is induced by a 160-nm period Ti/Pt/Au grid replacing the normal metal gate of a HEMT. Magnetoconductance measurements made at 5K show universal conductance fluctuations with an amplitude of 0.1e2/h and Aharonov-Bohm type periodic oscillations with h/e periodicity in the flux coupled through each cell of the superlattice. To the best of our knowledge, this is the first observation of Aharonov-Bohm effect in a solid state system that was not in a ring structure.

AB - Lateral surface superlattice (LSSL) structures have been prepared on MBE grown In0.2Ga0.8As/GaAs strained layers by electron beam lithography and metal lift-off processing. The LSSL is induced by a 160-nm period Ti/Pt/Au grid replacing the normal metal gate of a HEMT. Magnetoconductance measurements made at 5K show universal conductance fluctuations with an amplitude of 0.1e2/h and Aharonov-Bohm type periodic oscillations with h/e periodicity in the flux coupled through each cell of the superlattice. To the best of our knowledge, this is the first observation of Aharonov-Bohm effect in a solid state system that was not in a ring structure.

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JF - Proceedings of SPIE - The International Society for Optical Engineering

ER -

Magnetoconductance oscillations in InGaAs/GaAs lateral surface superlattices

Abstract

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