Multi-terminal ballistic transport in one-dimensional wires

R. De Picciotto; H. L. Stormer; A. Yacoby; K. W. Baldwin; L. N. Pfeiffer; K. W. West

doi:10.1016/S1386-9477(99)00097-1

Multi-terminal ballistic transport in one-dimensional wires

R. De Picciotto, H. L. Stormer, A. Yacoby, K. W. Baldwin, L. N. Pfeiffer, K. W. West

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

5 Scopus citations

Abstract

Recent experiments have shown non-universal conductance quantization in one-dimensional wires that are fabricated using the cleaved edge overgrowth technique. In one of the papers, it was speculated that the origin of the reduced conductance lies in the interface between the one-dimensional wire and the two-dimensional electron gas regions, which serve as ohmic contacts and thermal reservoirs. Here we report the results of a systematic study of such 2D-1D interfaces. By embedding a 2D-1D interaction section region of controllable length inside an otherwise isolated wire, we were able to study the properties of the coupling between these two subsystems. Our results show that 2D-1D interface is in fact the origin of the non-universal conductance.

Original language	English (US)
Pages (from-to)	514-517
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)00097-1
State	Published - Feb 2000
Externally published	Yes
Event	13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can Duration: Aug 1 1999 → Aug 6 1999

All Science Journal Classification (ASJC) codes

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

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10.1016/S1386-9477(99)00097-1

Cite this

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title = "Multi-terminal ballistic transport in one-dimensional wires",

abstract = "Recent experiments have shown non-universal conductance quantization in one-dimensional wires that are fabricated using the cleaved edge overgrowth technique. In one of the papers, it was speculated that the origin of the reduced conductance lies in the interface between the one-dimensional wire and the two-dimensional electron gas regions, which serve as ohmic contacts and thermal reservoirs. Here we report the results of a systematic study of such 2D-1D interfaces. By embedding a 2D-1D interaction section region of controllable length inside an otherwise isolated wire, we were able to study the properties of the coupling between these two subsystems. Our results show that 2D-1D interface is in fact the origin of the non-universal conductance.",

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AU - De Picciotto, R.

AU - Stormer, H. L.

AU - Yacoby, A.

AU - Baldwin, K. W.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2000/2

Y1 - 2000/2

N2 - Recent experiments have shown non-universal conductance quantization in one-dimensional wires that are fabricated using the cleaved edge overgrowth technique. In one of the papers, it was speculated that the origin of the reduced conductance lies in the interface between the one-dimensional wire and the two-dimensional electron gas regions, which serve as ohmic contacts and thermal reservoirs. Here we report the results of a systematic study of such 2D-1D interfaces. By embedding a 2D-1D interaction section region of controllable length inside an otherwise isolated wire, we were able to study the properties of the coupling between these two subsystems. Our results show that 2D-1D interface is in fact the origin of the non-universal conductance.

AB - Recent experiments have shown non-universal conductance quantization in one-dimensional wires that are fabricated using the cleaved edge overgrowth technique. In one of the papers, it was speculated that the origin of the reduced conductance lies in the interface between the one-dimensional wire and the two-dimensional electron gas regions, which serve as ohmic contacts and thermal reservoirs. Here we report the results of a systematic study of such 2D-1D interfaces. By embedding a 2D-1D interaction section region of controllable length inside an otherwise isolated wire, we were able to study the properties of the coupling between these two subsystems. Our results show that 2D-1D interface is in fact the origin of the non-universal conductance.

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Y2 - 1 August 1999 through 6 August 1999

ER -

Multi-terminal ballistic transport in one-dimensional wires

Abstract

All Science Journal Classification (ASJC) codes

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