The model of singlet-correlated bands for temperature and doping dependences of Cu(2) Knight shift in bilayered cuprates

Roos J.; Markendorf R.; Varlamov S.; Eremin M.; Brinkmann D.; Mali M.; Eremin I.

The model of singlet-correlated bands for temperature and doping dependences of Cu(2) Knight shift in bilayered cuprates

Eremin M.; Varlamov S.; Eremin I.; Brinkmann D.; Markendorf R.; Mali M.; Roos J.

URI: https://dspace.kpfu.ru/xmlui/handle/net/134127

Date: 1997

Abstract:

Using the model of the singlet-correlated band, the temperature and doping dependences of the planar Cu Knight shift in YBa2Cu3O7 and YBa2Cu4O8, at T > Tc, have been calculated. The spin susceptibility has been deduced by means of a Hubbard-like theory in the fast fluctuating regime. The effect of strong correlation shows up as an additional correction to the Pauli susceptibility with a strong dependence on the doping level.

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