Eur. Phys. J. B 11, 235-242 (1999)
https://doi.org/10.1007/s100510050934

Doping and temperature dependence of the spin susceptibility in the p-d model

¹ Dipartimento di Scienze Fisiche "E.R. Caianiello" , Università di Salerno, 84081 Baronissi (Salerno) and Unità INFM di Salerno, Italy
² Istituto Internazionale per gli Alti Studi Scientifici "E.R. Caianiello" , IIASS, 84019 Vietri sul Mare (Salerno), Italy

Corresponding author: ^a citro@vaxsa.csied.unisa.it

Received: 15 October 1998
Revised: 24 March 1999
Published online: 15 September 1999

Abstract

The spin magnetic susceptibility of the p-d model is calculated by means of a perturbation theory in the hybridization term V through a generalized cumulant expansion (GCE). The analysis is approached from the paramagnetic metallic phase. The results qualitatively reproduce some unusual magnetic properties in the normal state of the hole-doped cuprates, supporting the scenario of a Van Hove singularity near the Fermi level.