Fracton Contribution to the Electron and Magnon Pairing
Z. Bąk
Institute of Physics, Jan Długosz University, 42-200 Czestochowa, al. AK 13/15, Poland
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We show that high temperature superconductivity contrary to the Bardeen-Cooper-Schrieffer /BCS/ superconductors exhibits three important energy scales. The highest is associated with the formation of Cooper pairs coupled due to the magnetic fracton excitations, the second (pseudogap) we ascribe to the formation of coherent but not nonsuperfluid condensate. The lowest energy scale (superconducting gap) we associate with the onset of superfluidity of the condensate that is due to the phonon aided fracton hopping.

DOI: 10.12693/APhysPolA.126.372
PACS numbers: 84,71.Ba, 74.90.+n, 64.60.al