High Temperature Superconductors

  • Shigeji Fujita
  • Kei Ito
  • Salvador Godoy

Cuprate superconductors have layered structures containing the copper planes (CuO\(_{2}\)). The electric conduction occurs in the copper plane. The longitudinal optical phonon exchange generates positively \(and\) negatively charged pairons, both of which move with linear dispersion relations. The system of the pairons undergoes a Bose–Einstein condensation at the critical temperature \(T_{c}, k_{B} T_{c} = 1.24\, \hbar\upsilon_{F} n^{1/2 }\), where \(n\) is the pairon density and \(\upsilon_{F}\) the Fermi speed. The phase change is of the third order.


Wave Packet Fermi Surface Quantum Tunneling Cuprate Superconductor Linear Dispersion Relation 
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© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of PhysicsState University of New YorkBuffaloUSA
  2. 2.National Center for UniversityTokyoJapan
  3. 3.Department of FísicaUniversidad Nacional Autónoma de MéxicoMéxicoMéxico

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