Anyon explanation for the absence of divalent-copper EPR in high-temperature superconductors and related insulators

1 September 1992

journal article
Published by American Physical Society (APS) in Physical Review B

Vol. 46 (9) , 5640-5641
https://doi.org/10.1103/physrevb.46.5640

Abstract

Easy detectability of spin-1/2, orbitally nondegenerate centers by electron paramagnetic resonance follows from the existence of Kramers degeneracy, which is a consequence of time-reversal symmetry. If the spin-1/2 centers in high-temperature superconductors and related insulators are not fermions but are anyons, they will not obey time-reversal symmetry, their spin doublets will be split by inhomogeneous internal local fields, and their EPR may then not be easily detectable.

Keywords

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