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Journal of Low Temperature Physics

, Volume 187, Issue 5–6, pp 646–653 | Cite as

The Ground-State Phase Diagram of 2D Spin–Pseudospin System

  • Yu. D. Panov
  • A. S. Moskvin
  • A. A. Chikov
  • K. S. Budrin
Article

Abstract

High-Tc cuprates are characterized both by coexistence and competition of the spin and charge orders. We examine a simplified 2D model cuprate system where one of the on-site valence triplet states (or pseudospin \(S=1\) states) has a spin \(s=1/2\) degree of freedom. Depending on the value of the on-site correlation, inter-site density–density interaction, the spin exchange integral and the doping, the system shows different types of ground-state ordering. These include both the coexistence and competition of the spin and pseudospin ordering, for a weak and strong exchange coupling, respectively.

Keywords

Cuprates Spin and charge ordering 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Ural Federal UniversityEkaterinburgRussia

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