Crystal fields and second order magnetic hyperfine interactions in TmFe/sub 2/Si/sub 2/

Conference · Thu Sep 01 00:00:00 EDT 1983

OSTI ID:5531069

Umarji, A M; Shenoy, G K; Noakes, D R; Dattagupta, S

We report the measurement of Moessbauer hyperfine spectra of TmFe/sub 2/Si/sub 2/ using the 8.4 keV transition in /sup 169/Tm. The detailed temperature dependence of the quadrupole interaction has permitted us to evaluate the crystalline electric fields (CEF) acting on Tm atom. The analysis indicates the ground state of Tm to be a singlet state. However, the hyperfine coupling of the /sup 169/Tm with the excited CEF states generates a second order magnetic hyperfine interaction which has been observed in our experiment. An account of the spin relaxation of the second order magnetic hyperfine interaction is presented.

• Research Organization: Argonne National Lab., IL (USA); Hyderabad Univ. (India). School of Physics
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5531069
• Report Number(s): CONF-831187-13; ON: DE84003622
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CRYSTAL FIELD
HYPERFINE STRUCTURE
INTERMEDIATE MASS NUCLEI
IRON COMPOUNDS
IRON SILICIDES
ISOTOPES
MAGNETIC PROPERTIES
MOESSBAUER EFFECT
NUCLEI
ODD-EVEN NUCLEI
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SILICIDES
SILICON COMPOUNDS
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
THULIUM 169
THULIUM COMPOUNDS
THULIUM ISOTOPES
THULIUM SILICIDES
TRANSITION ELEMENT COMPOUNDS
VERY LOW TEMPERATURE