MAGNETIC-FIELD-INDUCED CROSSOVER FROM MOTT VARIABLE-RANGE-HOPPING TO WEAKLY INSULATING BEHAVIOR

Authors
FRIEDMAN JR ZHANG YZ DAI PH SARACHIK MP
Citation
Jr. Friedman et al., MAGNETIC-FIELD-INDUCED CROSSOVER FROM MOTT VARIABLE-RANGE-HOPPING TO WEAKLY INSULATING BEHAVIOR, Physical review. B, Condensed matter, 53(15), 1996, pp. 9528-9531
Citations number
36
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
53
Issue
15
Year of publication
1996
Pages
9528 - 9531
Database
ISI
SICI code
0163-1829(1996)53:15<9528:MCFMVT>2.0.ZU;2-Y
Abstract
In three-dimensional n-CdSe samples that obey Mott variable-range hopp ing, rho=rho(o)exp(T-o/T)(1/4), in the absence of a magnetic field, we report a field-induced crossover at low temperatures to a resistivity that exhibits a weak power-law divergence, rho=rho(o)T(-alpha), with an exponent a that decreases slowly with increasing field.