Crystalline electric field effects in UPt/sub 2/Si/sub 2/ and URu/sub 2/Si/sub 2/

Journal Article · Wed Apr 01 04:00:00 EST 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.35.5260· OSTI ID:6045563

Nieuwenhuys, G J

It is shown that a simple crystalline electric field model is able to account for many of the magnetic properties of UPt/sub 2/Si/sub 2/ and of URu/sub 2/Si/sub 2/. For UPt/sub 2/Si/sub 2/ (URu/sub 2/Si/sub 2/) a singlet-singlet-doublet-singlet (singlet-singlet-singlet-doublet) crystal-field level scheme is used to calculate the anisotropy, temperature dependence, and field dependence of the magnetization. For UPt/sub 2/Si/sub 2/ a reasonable agreement is obtained with magnetic and neturon scattering results. For URu/sub 2/Si/sub 2/ agreement with the magnetic measurement is fair, however, neutron scattering experiments give an estimate for the ordered moment of 0.03..mu../sub B/, which is much smaller than the calculated value.

• Research Organization: Kamerlingh Onnes Laboratorium, Rijks Universiteit, Leiden, The Netherlands
• OSTI ID: 6045563
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 35:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ACTINIDE COMPOUNDS
ANISOTROPY
COHERENT SCATTERING
CRYSTAL FIELD
DIFFRACTION
ELECTRIC FIELDS
MAGNETIC PROPERTIES
MAGNETIZATION
NEUTRON DIFFRACTION
PHYSICAL PROPERTIES
PLATINUM COMPOUNDS
PLATINUM SILICIDES
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
RUTHENIUM SILICIDES
SCATTERING
SILICIDES
SILICON COMPOUNDS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
URANIUM COMPOUNDS
URANIUM SILICIDES