Spin dynamics in conducting polymers studied by μSR
作者： F.L. Pratt , S.J. Blundell , P.A. Pattenden , W. Hayes , K.H. Chow
关键词: Spin diffusion 、 Spin polarization 、 Polyaniline 、 Condensed matter physics 、 Muon spin spectroscopy 、 Spin wave 、 Zero field splitting 、 Relaxation (NMR) 、 Chemistry 、 Spin-½
摘要: We report studies of spin dynamics in the conducting polymers polyaniline and polypyrrole using both μ+SR μ-SR techniques. These measurements reveal characteristic field dependences cutoff frequencies for muon relaxation which can be related to diffusion process. Clear evidence is seen increased localisation at low temperatures where a crossover occurs from two or three dimensional one regime.
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