Zero-field NMR study on a spin glass: iron-doped 2H-niobium diselenide
Spin echoes are used to study the /sup 93/Nb NQR in 2H-NbSe/sub 2/Fe/sub x/. Measured are (intensity) x (temperature), and T/sub 1P/ (spin-lattice relaxation parameter) and T/sub 2/ (spin-spin relaxation time) as a function of temperature. Data reveal dramatic differences between non-spin glass samples (x = 0, 0.25%, 1% and 5%) and spin glass samples (x = 8%, 10% and 12%). All of the NQR results and the model calculation of the correlation times of Fe spins are best described by the phase transition picture of spin glasses.
- Research Organization:
- Illinois Univ., Urbana (USA). Dept. of Physics
- DOE Contract Number:
- AC02-76ER01198
- OSTI ID:
- 5197013
- Report Number(s):
- DOE/ER/01198-1379; ON: DE82012925
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
CHALCOGENIDES
GLASS
MAGNETIC RESONANCE
NIOBIUM COMPOUNDS
NIOBIUM SELENIDES
NUCLEAR MAGNETIC RESONANCE
RELAXATION
RESONANCE
SELENIDES
SELENIUM COMPOUNDS
SPIN-SPIN RELAXATION
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
360602* -- Other Materials-- Structure & Phase Studies
CHALCOGENIDES
GLASS
MAGNETIC RESONANCE
NIOBIUM COMPOUNDS
NIOBIUM SELENIDES
NUCLEAR MAGNETIC RESONANCE
RELAXATION
RESONANCE
SELENIDES
SELENIUM COMPOUNDS
SPIN-SPIN RELAXATION
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS