Bipolaronic model and critical fields in the superconducting state of K3C60
Alexandrov A. S.
A model of "Fullerene" Tc's is proposed on the basis of a strong electron-phonon coupling, which forms a charged Bose-liquid of small bipolarons. The experimental Hcl and Hc2 data suggest that the bipolaronic picture can be used to describe Mx C60. Some anomalous properties of these compounds are predicted.
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![](/ps/1270/article_19219_800_head.png "A model of "Fullerene" <i>T<sub>c</sub></i>'s is proposed on the basis of a strong electron-phonon coupling, which forms a charged Bose-liquid of small bipolarons. The experimental <i>H<sub>cl</sub> </i>and <i>H<sub>c2</sub> </i>data suggest that the bipolaronic picture can be used to describe M<sub>x</sub> C<sub>60</sub>. Some anomalous properties of these compounds are predicted.")