Pressure dependence of the conduction-band energy of nonpolar liquids

Journal Article · Sat Feb 15 04:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.3215· OSTI ID:7047509

Holroyd, R ^[1]; Nishikawa, M; Nakagawa, K ^[2]; Kato, N ^[3]

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1. Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. Department of Pure and Applied Science, University of Tokyo, 3-8-1 Komaba, Meguru-ku, Tokyo 153 (Japan)
3. Department of Synthetic Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464 (Japan)

The energy {ital V}{sub 0} of the conduction state of the quasifree electron is reported as a function of pressure up to 2.5 kbar for {ital n}-pentane, 2,2-dimethylbutane, 2,2,4-trimethylpentane, 2,2,4,4-tetramethylpentane, and tetramethylsilane (TMS). For each liquid, {ital V}{sub 0} increases with increasing pressure. The largest change with pressure is observed for {ital n}-pentane, the smallest change for TMS. The results are used together with a density-fluctuation theory to calculate the effect of pressure on the mobility of quasifree electrons. The theory predicts the direction of change in mobility with pressure found experimentally (decreasing with pressure for TMS and increasing with pressure for branched hydrocarbons) as well as the relative magnitude of the changes.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7047509
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:7; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665000* -- Physics of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARRIER MOBILITY
DENSITY
ELECTRONIC STRUCTURE
FLUCTUATIONS
FLUIDS
HIGH PRESSURE
LIQUIDS
MEDIUM PRESSURE
MOBILITY
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE EFFECTS
VARIATIONS
VERY HIGH PRESSURE