TY - JOUR
T1 - Electrodeless measurements of hall mobility at the metal-non-metal transition in metal-ammonia solutions!
AU - Swenumson, R. D.
AU - Even, U.
AU - Thompson, J. C.
N1 - Funding Information:
The M-NM transition has been discussed mostly in terms of two theories, one proposed by Mott (1974) and the other by Jortner and Cohen (1975). One obvious difference between the two theories is the role assigned to fluctuations. Mott’s model envisages a homogeneous material in which fluctuations become t Supported in part by the R. A. Welch Foundation and the U.S. NSF under grant DMR 76-84338. $ Permanent address: Chemistry Institute, Tel-Aviv University, Ramat-Aviv, Tel-Aviv, Israel.
PY - 1978/3
Y1 - 1978/3
N2 - Electrodeless Hall mobility measurements at the metal-non-metal (M-NM) transition in metal-ammonia (M-NH3) solutions are presented. The possibility of electrode effects has been eliminated. These data corroborate previous conventional four-probe data which showed an excess mobility in Na-NH3 solutions near the composition corresponding to phase separation. The possible role of fluctuations on the M-NM transition is discussed in connection with the competing theories of Mott (1974) and Jortner and Cohen (1975). Data from a Li-Na-NH3 alloy indicates a non-linear decrease in Hall mobility with decreasing Na/Li ratio.
AB - Electrodeless Hall mobility measurements at the metal-non-metal (M-NM) transition in metal-ammonia (M-NH3) solutions are presented. The possibility of electrode effects has been eliminated. These data corroborate previous conventional four-probe data which showed an excess mobility in Na-NH3 solutions near the composition corresponding to phase separation. The possible role of fluctuations on the M-NM transition is discussed in connection with the competing theories of Mott (1974) and Jortner and Cohen (1975). Data from a Li-Na-NH3 alloy indicates a non-linear decrease in Hall mobility with decreasing Na/Li ratio.
UR - http://www.scopus.com/inward/record.url?scp=0017945831&partnerID=8YFLogxK
U2 - 10.1080/01418637808227672
DO - 10.1080/01418637808227672
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AN - SCOPUS:0017945831
SN - 1364-2812
VL - 37
SP - 311
EP - 319
JO - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
JF - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
IS - 3
ER -