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NMR/μSR and Non‐Fermi‐Liquid Behavior in Heavy Fermion Systems
Author(s) -
Bernal O.O.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200007)220:1<335::aid-pssb335>3.0.co;2-x
Subject(s) - muon spin spectroscopy , condensed matter physics , fermi liquid theory , heavy fermion , fermi gamma ray space telescope , muon , physics , fermion , neutron scattering , spin (aerodynamics) , neutron , nuclear physics , nuclear magnetic resonance , materials science , superconductivity , particle physics , thermodynamics
This paper deals with nuclear magnetic resonance (NMR) and muon spin rotation (μSR) experiments in heavy‐fermion (HF) systems which display non‐Fermi‐liquid (NFL) behavior. We review in particular our measurements in UCu 5— x Pd x ( x = 1 and 1.5), and discuss how these experiments have contributed to our current understanding of the role of disorder in NFL properties. Recent experiments on CeRhRuSi 2 are also described. Our experiments reveal the usefulness of NMR and —SR as ideal tools for detecting structural or intrinsic disorder and characterizing magnetic inhomogeneities in stoichiometric “ordered compounds”, which appear pristine to other techniques such as X‐rays and neutron scattering.