Experimental evidence for boundary and impurity scattering related crossover in quasi-ballistic wires

Y. Ochiai; K. Yamamoto; K. Ishibashi; J. P. Bird; Y. Aoyagi; T. Sugano; D. K. Ferry

doi:10.1016/0921-4526(96)00386-9

Experimental evidence for boundary and impurity scattering related crossover in quasi-ballistic wires

Y. Ochiai, K. Yamamoto, K. Ishibashi, J. P. Bird, Y. Aoyagi, T. Sugano, D. K. Ferry

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Abstract

We study the magnetic field dependence of the correlation field △B_c and amplitude δg of the conductance fluctuations, observed in the low-temperature magnetoresistance of a quasi-ballistic split-gate wire. With increasing the fields, there exists a crossover from diffusive to ballistic motions in the quasi-ballistic transport. Scattering processes have been discussed by analyzing a linear field dependence of △B_c above the crossover. The crossover behaviors are considered to be a precursor effect on the formation of the edge channel accompanied with a rapid increase of inelastic scattering length l_in.

Original language	English (US)
Pages (from-to)	152-155
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	227
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(96)00386-9
State	Published - Sep 1996

Keywords

Correlation field
Inelastic length
Phase coherence length
Quasi-ballistic wire
Universal conductance fluctuations

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/0921-4526(96)00386-9

Cite this

@article{b75535314abf4b61971812535c7e3329,

title = "Experimental evidence for boundary and impurity scattering related crossover in quasi-ballistic wires",

abstract = "We study the magnetic field dependence of the correlation field △Bc and amplitude δg of the conductance fluctuations, observed in the low-temperature magnetoresistance of a quasi-ballistic split-gate wire. With increasing the fields, there exists a crossover from diffusive to ballistic motions in the quasi-ballistic transport. Scattering processes have been discussed by analyzing a linear field dependence of △Bc above the crossover. The crossover behaviors are considered to be a precursor effect on the formation of the edge channel accompanied with a rapid increase of inelastic scattering length lin.",

keywords = "Correlation field, Inelastic length, Phase coherence length, Quasi-ballistic wire, Universal conductance fluctuations",

author = "Y. Ochiai and K. Yamamoto and K. Ishibashi and Bird, {J. P.} and Y. Aoyagi and T. Sugano and Ferry, {D. K.}",

note = "Funding Information: We are grateful to the NEDO, {"}Nanostructures and Electron Waves Project{"}, for their financial support. Also, the financial support help of Grant-in-Aid for Scientific Research on Priority Areas supported by the Ministry of Education, Science and Culture {"}Quantum Coherent Electronics{"}, is gratefully acknowledged.",

year = "1996",

month = sep,

doi = "10.1016/0921-4526(96)00386-9",

language = "English (US)",

volume = "227",

pages = "152--155",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "1-4",

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TY - JOUR

T1 - Experimental evidence for boundary and impurity scattering related crossover in quasi-ballistic wires

AU - Ochiai, Y.

AU - Yamamoto, K.

AU - Ishibashi, K.

AU - Bird, J. P.

AU - Aoyagi, Y.

AU - Sugano, T.

AU - Ferry, D. K.

N1 - Funding Information: We are grateful to the NEDO, "Nanostructures and Electron Waves Project", for their financial support. Also, the financial support help of Grant-in-Aid for Scientific Research on Priority Areas supported by the Ministry of Education, Science and Culture "Quantum Coherent Electronics", is gratefully acknowledged.

PY - 1996/9

Y1 - 1996/9

N2 - We study the magnetic field dependence of the correlation field △Bc and amplitude δg of the conductance fluctuations, observed in the low-temperature magnetoresistance of a quasi-ballistic split-gate wire. With increasing the fields, there exists a crossover from diffusive to ballistic motions in the quasi-ballistic transport. Scattering processes have been discussed by analyzing a linear field dependence of △Bc above the crossover. The crossover behaviors are considered to be a precursor effect on the formation of the edge channel accompanied with a rapid increase of inelastic scattering length lin.

AB - We study the magnetic field dependence of the correlation field △Bc and amplitude δg of the conductance fluctuations, observed in the low-temperature magnetoresistance of a quasi-ballistic split-gate wire. With increasing the fields, there exists a crossover from diffusive to ballistic motions in the quasi-ballistic transport. Scattering processes have been discussed by analyzing a linear field dependence of △Bc above the crossover. The crossover behaviors are considered to be a precursor effect on the formation of the edge channel accompanied with a rapid increase of inelastic scattering length lin.

KW - Correlation field

KW - Inelastic length

KW - Phase coherence length

KW - Quasi-ballistic wire

KW - Universal conductance fluctuations

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DO - 10.1016/0921-4526(96)00386-9

M3 - Article

AN - SCOPUS:0030235299

SN - 0921-4526

VL - 227

SP - 152

EP - 155

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-4

ER -

Experimental evidence for boundary and impurity scattering related crossover in quasi-ballistic wires

Abstract

Keywords

ASJC Scopus subject areas

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