General cases of the pseudoquadrupole interaction in /sup 169/Tm

Conference · Wed Jun 01 00:00:00 EDT 1983

OSTI ID:5695697

Noakes, D R; Shenoy, G K

Clauser and Moessbauer showed that the second order (in perturbation theory) magnetic hyperfine interaction, the so called pseudoquadrupole interaction, in the /sup 169/Tm Moessbauer effect can produce apparent isomer shifts. While they assumed two isolated singlets and simplified the coupling, it is shown that the second order magnetic hyperfine coupling can be observed in general for any kind of crystalline electric field (CEF) wavefunctions, and that the coupling between many states must often be considered in calculating it. Furthermore since the first order magnetic coupling of the excited CEF are important, the interaction is best accounted for by diagonalization of the full magnetic hyperfine and CEF Hamiltonian. Examples of the effects that may occur are presented.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5695697
• Report Number(s): CONF-830779-2; ON: DE83015685
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
COUPLING
CRYSTAL FIELD
HYPERFINE STRUCTURE
INTERMEDIATE MASS NUCLEI
ISOTOPES
MOESSBAUER EFFECT
NUCLEI
ODD-EVEN NUCLEI
RARE EARTH COMPOUNDS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
STABLE ISOTOPES
THULIUM 169
THULIUM COMPOUNDS
THULIUM ISOTOPES