The ground state energy and entropy of the two-dimensional t-J model

Takashi Koretsune, Masao Ogata

Research output: Contribution to journalArticlepeer-review

Abstract

We have studied the entropy of two-dimensional t-J model by high temperature expansions through 14th order in inverse temperature. We extrapolated the series of entropy as a function of internal energy down to T = 0 and found that the entropy has wavy form in low doped case. We conclude that this indicate the spin-charge separation.

Original languageEnglish
Pages (from-to)1419-1422
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume63
Issue number6-8
DOIs
Publication statusPublished - 2002 Jan 1
Externally publishedYes

Keywords

  • D. Electrical properties
  • D. Superconductivity
  • D. Thermodynamic properties

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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