Spin freezing and non-glassy dynamics in Ce0.2La0.8RhIn5

Zero-field muon spin relaxation (muSR) in non-Fermi liquid Ce0.2La0.8RhIn5 reveals disordered spin freezing with a sharp transition at 0.16K. The frozen moment at T=0 is estimated as , an order of magnitude smaller than found from thermodynamic data at higher fields and temperatures. Longitudinal-fi...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2006-05, Vol.378-80, p.144-145
Main Authors: MACLAUGHLIN, D. E, LEI SHU, ANDERSON, J. E, HEFFNER, R. H, MORRIS, G. D, BERNAL, O. O, KIM, J. S, STEWART, G. R
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Magnetically ordered materials: other intrinsic properties
Muon spin rotation and relaxation
Physics
Valence fluctuation, kondo lattice, and heavy-fermion phenomena
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Summary:Zero-field muon spin relaxation (muSR) in non-Fermi liquid Ce0.2La0.8RhIn5 reveals disordered spin freezing with a sharp transition at 0.16K. The frozen moment at T=0 is estimated as , an order of magnitude smaller than found from thermodynamic data at higher fields and temperatures. Longitudinal-field muSR exhibits no dynamic relaxation at any temperature, showing that the spin freezing is not accompanied by the slow spin fluctuations found in spin glasses above the glass temperature and in other disordered non-Fermi liquid systems.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2006.01.054