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

Journal Article · Tue Mar 20 00:00:00 EST 1984 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.333641· OSTI ID:5257344

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: Materials Science and Technology Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5257344
• Journal Information: J. Appl. Phys.; (United States), Vol. 55:6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
IRON SILICIDES
CRYSTAL FIELD
MOESSBAUER EFFECT
THULIUM SILICIDES
HYPERFINE STRUCTURE
QUADRUPOLE MOMENTS
SPIN
TEMPERATURE DEPENDENCE
ANGULAR MOMENTUM
IRON COMPOUNDS
PARTICLE PROPERTIES
RARE EARTH COMPOUNDS
SILICIDES
SILICON COMPOUNDS
THULIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360104* - Metals & Alloys- Physical Properties