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



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-Tc compounds 78.20.Bh Theory, models, and numerical simulation 


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Copyright information

© Società Italiana di Fisica, Springer-Verlag 1999

Authors and Affiliations

  1. 1.Dipartimento di Scienze Fisiche “E.R. Caianiello”Università di SalernoBaronissi (Salerno)Italy
  2. 2.Istituto Internazionale per gli Alti Studi Scientifici “E.R. Caianiello”IIASSVietri sul Mare (Salerno)Italy
  3. 3.Department of PhysicsRutgers UniversityPiscatawayUSA

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