@article{jmpc2013121,
author={{Yadav, Daluram and Yadav, Nishchhal and Ghosh, Sanjay K.},
title={Electron-phonon Pairing Mechanism for Superconductivity in K<SUB>3</SUB>C<SUB>60</SUB> Fullerides},
journal={Journal of Materials Physics and Chemistry},
volume={1},
number={2},
pages={9--18},
year={2013},
url={http://pubs.sciepub.com/jmpc/1/2/1},
issn={2333-4444},
abstract={The electron pairing mechanism leading to superconducting state in K<SUB>3</SUB>C<SUB>60</SUB> fullerenes is explored within the framework of strong coupling theory. The intercage interactions between <i>C</i><SUB><i>60</i></SUB><i> </i>cages and expansion of lattice due to the intercalation of <i>K</i> atoms are investigated using the nearest neighbor interactions. The renormalized Coulomb repulsive parameter &#956;<i>*</i> and the electron phonon coupling strength &#955; are obtained for the intermolecular phonon frequency &#969;<SUB><i>er</i></SUB>, keeping in mind that the free electrons in lowest molecular orbital are coupled with intermolecular phonons. <i>T</i><SUB><i>c</i></SUB> is then estimated as 5 <i>K</i>, which is much lower as compared with the reported value. The electrons also couple with the intramolecular phonons then <i>T</i><SUB><i>c</i></SUB><i> </i>enhances to 22 <i>K</i>. In this approach the carbon isotope effect exponent, the energy gap ratio, effect of pressure and volume on <i>T</i><SUB><i>c</i></SUB><i> </i>is calculated which support the superconducting state.},
doi={10.12691/jmpc-1-2-1}
publisher={Science and Education Publishing}
}