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Space-group approach to two-electron states in unconventional superconductors

V. G. YARZHEMSKY1,*

Affiliation

  1. N. S. Kurnakov Institute of General and Inorganic Chemistry of RAS, 31, Leninsky, 119991, Moscow, Russia

Abstract

The direct application of the space-group representation theory, makes possible to obtain limitations for the symmetry of SOP on lines and planes of symmetry in one-electron Brillouin zone. In the case of highly symmetric UPt3 only theoretical nodal structure of IR E2u is in agreement with all the experimental results. On the other hand, in the case of high-Tcsuperconductors the two electron description of Coper pairs in D2h symmetry is not sufficient to describe experimental nodal structure. It was shown that in this case, the nodal structure is the result of underlying interactions between two-electron states and hidden symmetry D4h..

Keywords

Space-group approach, Two-electron states, Unconventional superconductors.

Submitted at: April 1, 2008
Accepted at: July 1, 2008

Citation

V. G. YARZHEMSKY, Space-group approach to two-electron states in unconventional superconductors, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 7, pp. 1759-1762 (2008)