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

R. Citro; M. Marinaro

doi:10.1007/s100510050934

EPJ

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

R. Citro¹^a and M. Marinaro¹^,2

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 This email address is being protected from spambots. You need JavaScript enabled to view 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.

PACS: 74.25.Ha – Magnetic properties / 74.72.-h – High-T_c compounds / 78.20.Bh – Theory, models, and numerical simulation

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EPJ

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

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