Two-parameter scaling of the hopping conductivity of [ital n]-type CdSe

Journal Article · Sat Jan 14 23:00:00 EST 1995 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.51.2580· OSTI ID:6653660

Zhang, Y; Sarachik, M P ^[1]

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1. Physics Department, City College of The City University of New York, New York, New York 10031 (United States)

The conductivity between 0.05 and 3.0 K of five samples of insulating CdSe:In containing dif- ferent dopant concentrations 0.75[ital n][sub [ital c]][lt][ital n][lt]0.95[ital n][sub [ital c]] is consistent with two-parameter scaling, [sigma]=[sigma][sup *]([ital n])[ital f][[ital T]/[ital T][sup *]([ital n])], where the parameter [ital T][sup *] goes to zero and [sigma][sup *] tends toward a finite value [sigma][sub [ital c]][sup *] at the metal-insulator transition. This form implies a minimum metallic conductivity, and must break down as [ital n][r arrow][ital n][sub [ital c]] if the transition is continuous.

• OSTI ID: 6653660
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 51:4; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ALLOYS
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CHALCOGENIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INDIUM ADDITIONS
INDIUM ALLOYS
MATERIALS
N-TYPE CONDUCTORS
PHYSICAL PROPERTIES
SCALING
SELENIDES
SELENIUM COMPOUNDS
SEMICONDUCTOR MATERIALS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K