Back to Search Start Over

Hyperfine interactions in lutetium iron garnet

Authors :
Daniel Nižňanský
J. Kuriplach
Pavel Novák
V. Chlan
Helena Štěpánková
J. Englich
Source :
Journal of Applied Physics. 99:08M903
Publication Year :
2006
Publisher :
AIP Publishing, 2006.

Abstract

Nuclear Magnetic Resonance/Near Quadupole Resonace specra of Lu175 in lutetium iron garnet (LuIG) were measured in the range of 10–500MHz in zero external magnetic field at a temperature of 4.2K. Experimentally observed spectra had complicated structure and a theory was needed to interpret them. To this end we calculated the electronic structure of LuIG and from it the values of magnetic hyperfine fields and the components of electric-field-gradient tensor at the lutetium nuclei were determined. These parameters were used to simulate the theoretical spectra of Lu175 in LuIG. Simulated spectral lines of Lu175 at dodecahedral sublattice correspond reasonably well with the system of measured lines in the range of 10–200MHz. Several spectral lines in the range of 300–500MHz can be interpreted as the resonance of Lu175 at the octahedral sites that are nominally occupied by the ferric cations.

Details

ISSN :
10897550 and 00218979
Volume :
99
Database :
OpenAIRE
Journal :
Journal of Applied Physics
Accession number :
edsair.doi...........85fa64688e4140936198ee158df7c8f5
Full Text :
https://doi.org/10.1063/1.2158687