EFFECT OF TEMPERATURE AND PRESSURE ON THE RESISTANCE OF FOUR ALKALI METALS

Journal Article · Tue Oct 01 04:00:00 EDT 1963 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.132.124· OSTI ID:4630014

Stager, R A; Drickamer, H G

The electrical resistance of lithium, sodium, potassium, and rubidium was measured as a function of pressure to over 500 kbar at 77 deg K and 296 deg K. Lithium exhibits an initial rise in resistance, a first-order phase transition at 70 kbar with a large resistance crop, and a very gradual rise in resistance at high pressure. Sodium has a rise in resistance with pressure at both 77 and 296 deg K. The hightemperature isotherm exhibits a very broad maximum at high pressure. For potassium, the 296 deg K isotherm shows a rise by a factor of 50 in 600 kbar. The 77 deg K isotherm shows a sluggish transition at 280 kbar and a very sharp transition at 360 kbar. The latter is almost certainly martensitic. Both isotherms for rubidium have qualitatively similar behavior: a rise in resistance which accelerates with increasing pressure, a discontinuous rise at 190 kbar (210 kbar at 77 deg K), and a broad maximum at high pressure. The discontinuous rise is probably due to a electronic transition. (auth)

• Research Organization: Univ. of Illinois, Urbana
• NSA Number: NSA-17-037849
• OSTI ID: 4630014
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 132; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALLOTROPY
ELECTRIC CONDUCTIVITY
ELECTRONS
LITHIUM
MEASURED VALUES
PHASE DIAGRAMS
PHASE TRANSFORMATION
PHYSICS
POTASSIUM
PRESSURE
RUBIDIUM
SODIUM
TEMPERATURE