Electrodeless measurements of hall mobility at the metal-non-metal transition in metal-ammonia solutions!

R. D. Swenumson, U. Even, J. C. Thompson

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)311-319
Number of pages9
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume37
Issue number3
DOIs
StatePublished - Mar 1978
Externally publishedYes

Funding

FundersFunder number
R. A. Welch Foundation
National Science FoundationDMR 76-84338

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