Low-temperature thermal expansion and specific heat of KCl containing Li tunneling states

Journal Article · Sat Mar 15 04:00:00 EST 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.33.4172· OSTI ID:6084289

Dobbs, J N; Anderson, A C

Thermal-expansion coefficients and specific heats have been measured in the temperature range 0.1--10 K for KCl crystals containing less than 200 ppm /sup 6/Li or /sup 7/Li. The tunneling states associated with isolated Li ions give rise to a Grueneisen parameter of GAMMA/sub Li/ = +150 +- 15 which is isotropic and independent of temperature or of Li isotope.

• Research Organization: Department of Physics and Materials Research Laboratory, University of Illinois, 104 South Goodwin, Urbana, Illinois 61801
• DOE Contract Number: AC02-76ER01198
• OSTI ID: 6084289
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:6; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALKALI METALS
CHLORIDES
CHLORINE COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
DIMENSIONS
ELEMENTS
EXPANSION
GRUENEISEN CONSTANT
HALIDES
HALOGEN COMPOUNDS
IMPURITIES
ISOTROPY
LENGTH
LITHIUM
METALS
MIGRATION LENGTH
PHYSICAL PROPERTIES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
QUANTITY RATIO
SPECIFIC HEAT
THERMAL EXPANSION
THERMODYNAMIC PROPERTIES
TUNNEL EFFECT
ULTRALOW TEMPERATURE