FOUR SPIN EXCHANGE IN HIGH Tc SUPERCONDUCTORSReport as inadecuate




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Abstract : Taking into account the small energy difference of conducting holes between Cu and O sites and large on-site energy for double occupancy which prevents holes from crossing on the same site, we prove that cyclic four hole exchange via intermediate O sites is dominant in the 2D CuO2 square lattice, like in hard core solid 3He. Some experimental discrepancies are resolved by this model.





Author: M. Roger J. Delrieu

Source: https://hal.archives-ouvertes.fr/



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