Electron Paramagnetic Resonance in MexC60 Fullerites for Me = K and Rb
- 1 July 1993
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 178 (1) , 221-231
- https://doi.org/10.1002/pssb.2221780122
Abstract
EPR studies of superconducting fullerites MexC60 (Me = K and Rb) are performed for temperatures ranging from 4 to 300 K and compositions of x = 2 to 5. A paramagnetic center is an ion radical fullerene Ċ60 which may occur as a cation Ċ60+ or anion Ċ60y− of different valency. The EPR signal of Ċ60+ weakly depends on temperature whereas the signal of Ċ60y− in a Mex(Ċ60)y− complex is strongly dependent both on temperature and composition. A model of a paramagnetic center related to a wandering electron (hole) localized on the Ċ60 fullerene ball is presented.Keywords
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