muSR study on CDW phase transition in K metal

Since the prediction of a CDW state in alkali metals by Overhauser in 1962, many groups tried to observe this state. However no clear evidence has been reported. We attempted to observe the phase transition in potassium and observed anomalous behavior at about 20K in magnetic susceptibility, specifi...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2006-03, Vol.374-375, p.402-404
Main Authors: Suzuki, H, Aburano, H, Yamauchi, R, Abe, S, Watanabe, I
Format: Article
Language:English
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Summary:Since the prediction of a CDW state in alkali metals by Overhauser in 1962, many groups tried to observe this state. However no clear evidence has been reported. We attempted to observe the phase transition in potassium and observed anomalous behavior at about 20K in magnetic susceptibility, specific heat and lattice constant. To confirm the phase transition at about 20K in potassium, a muon-spin-relaxation (mu+SR) experiment was performed between 10 and 50K. Temperature dependence of the dynamical mu+SR rate increases below about 20K.
ISSN:0921-4526
DOI:10.1016/j.physb.2005.11.114