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Spin dynamics in conducting polymers studied by μSR |
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| Authors: | FL Pratt SJ Blundell PA Pattenden W Hayes KH Chow AP Monkman T Ishiguro K Ishida K Nagamine |
| Institution: | (1) Muon Science Laboratory, The Institute of Physical and Chemical Research (RIKEN), Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK;(2) Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK;(3) Department of Physics, University of Durham, South Road, Durham, DH1 3LE, UK;(4) Department of Physics, Kyoto University, Kyoto 606‐01, Japan |
| Abstract: | We report studies of spin dynamics in the conducting polymers polyaniline and polypyrrole using both μ+SR and μ-SR techniques. These measurements reveal characteristic field dependences and cutoff frequencies for the muon spin relaxation which can be related to the spin diffusion process. Clear evidence is seen for increased spin localisation at low temperatures where a crossover occurs from two or three dimensional spin diffusion to a one dimensional diffusion regime. This revised version was published online in August 2006 with corrections to the Cover Date. |
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