/sup 161/Dy hyperfine parameters for C/sub 2/ and C/sub 3//sub i/ site symmetries in Dy/sub 2/O/sub 3/

Journal Article · Wed Dec 01 04:00:00 EST 1976 · Phys. Rev., B; (United States)

DOI:https://doi.org/10.1103/PhysRevB.14.4769· OSTI ID:7330778

Forester, D W; Ferrando, W A

Low-temperature Moessbauer spectra of /sup 161/Dy in Dy/sub 2/O/sub 3/ reveal for the first time a resolved magnetic hyperfine structure (hfs) associated with Dy/sup 3 +/ at sites with C/sub 3//sub i/(S/sub 6/) point symmetry. The magnetic hfs parameter is near that expected for a pure vertical-bar J/sub xi/ = +- 15/2 > Kramers doublet and is about 10% higher than for Dy/sup 3 +/ ions at sites with C/sub 2/ point symmetry in Dy/sub 2/O/sub 3/. A crystal-field parameter B/sub 2//sup 0/ is deduced from the lattice part of the C/sub 3//sub i/ quadrupole splitting. Both the sign of this parameter and the almost pure vertical-bar J/sub xi/ = +- 15/2 > character of the ground state are shown to be inconsistent with earlier Moessbauer results and crystal-field calculations. (AIP)

• Research Organization: Naval Research Laboratory, Washington, D.C. 20375
• OSTI ID: 7330778
• Journal Information: Phys. Rev., B; (United States), Journal Name: Phys. Rev., B; (United States) Vol. 14:11; ISSN PLRBA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
CHALCOGENIDES
DYSPROSIUM 161
DYSPROSIUM COMPOUNDS
DYSPROSIUM ISOTOPES
DYSPROSIUM OXIDES
EVEN-ODD NUCLEI
GAMMA SPECTRA
HYPERFINE STRUCTURE
INTERMEDIATE MASS NUCLEI
ISOTOPES
MOESSBAUER EFFECT
NUCLEI
OXIDES
OXYGEN COMPOUNDS
QUADRUPOLE MOMENTS
RARE EARTH COMPOUNDS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPECTRA
STABLE ISOTOPES