Field-dependent specific-heat of the pure and diluted 4f electron system Yb4As3

R. Matysiak, G. Kamieniarz, P. Gegenwart, H. Aoki, A. Ochiai

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The experimental field-dependent specific heat of the polydomain pure Yb4As3 and diluted (Yb1-xLux)4As3 (x = 0.01, 0.03) systems is presented and compared with that calculated by the numerical quantum transfer-matrix method. The simulations have been performed using the S = 1/2 antiferromagnetic Heisenberg model with the transverse staggered field (appearing as a result of the antisymmetric Dzyaloshinskii-Moriya interaction) and a uniform magnetic field perpendicular to the staggered field. In the model calculations the fixed microscopic parameters have been taken and the impurity distribution has been considered. A significant improvement with respect to the previous results is shown.

Original languageEnglish
Pages (from-to)3955-3958
Number of pages4
JournalInorganica Chimica Acta
Volume360
Issue number13
DOIs
Publication statusPublished - 2007 Oct 1

Keywords

  • Dzyaloshinskii-Moriya interaction
  • Heisenberg model
  • Numerical simulation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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