Simple scaling behavior in the magnetic susceptibility of CeSn/sub 3/ under high pressure

Journal Article · Fri Apr 01 04:00:00 EST 1983 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.27.4325· OSTI ID:5932756

Shaheen, S A; Schilling, J S; Liu, S H; McMasters, O D

The static magnetic susceptibility chi of single-crystalline CeSn/sub 3/ is measured as a function of temperature 3< or =T< or =300 K and hydrostatic pressure 1 bar< or =P< or =15 kbar. The temperature and pressure dependence of chi is shown to be a function of a single characteristic spin-fluctuation energy kT/sub sf/, i.e., chiT scales with T/T/sub sf/. From the magnitude of the increase of T/sub sf/ with pressure (partiallnT/sub sf//partialPapprox. =+1.4%/kbar or partiallnT/sub sf//partiallnVapprox. =-7.6) it can be indirectly inferred within a simple model that an increase in the 4f hybridization width ..delta.., rather than a decrease in the 4f binding energy epsilon/sub ex/, is the dominant change in the magnetic state under pressure. These results imply that CeSn/sub 3/ would be best characterized as a trivalent Ce compound with a rather high spin-fluctuation temperature (T/sub sf/approx. =200 K) rather than as a compound with fractional valence. chi(T) appears to depend only very weakly on the relative orientation of the magnetic field. The Curie tail in chi(T) below 20 K is independent of pressure and is, therefore, very likely an impurity effect rather than an intrinsic property of the compound. It is suggested that scaling itself can be used to derive changes in both the valence v and T/sub sf/ in a single experiment.

• Research Organization: Experimentalphysik IV, Universitat Bochum, 4630 Bochum 1, West Germany
• OSTI ID: 5932756
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 27:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
ANGULAR MOMENTUM
CERIUM COMPOUNDS
CRYSTALS
FLUCTUATIONS
HIGH PRESSURE
HYBRIDIZATION
KONDO EFFECT
LEVEL WIDTHS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SPIN
TEMPERATURE DEPENDENCE
TIN COMPOUNDS
ULTRALOW TEMPERATURE
VARIATIONS
VERY HIGH PRESSURE
VERY LOW TEMPERATURE