Scaling behaviour of magnetic transitions in Ni3V2O8

P. Kharel, A. Kumarasiri, A. Dixit, N. Rogado, R. J. Cava, G. Lawes

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

We have studied phase transitions in multiferroic Ni3V2O8, through dielectric measurements and by investigating the effects of Zn doping. The divergence of the dielectric constant near TL = 6.4 K can be approximately fit by power law behaviour, but exhibits different critical exponents above and below TL. The two higher temperature magnetic transitions in (Ni1-xZnx)3V2O8, are strongly suppressed as the Zn doping fraction x is increased. The rates of the suppression of both TH and TL with x are consistent with two-dimensional spin systems, with the suppression of TH consistent with Ising spins and the suppression of TL consistent with Heisenberg spins.

Original languageEnglish (US)
Pages (from-to)1923-1932
Number of pages10
JournalPhilosophical Magazine
Volume89
Issue number22-24
DOIs
StatePublished - Jan 1 2009

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Keywords

  • Antiferromagnet
  • Critical exponent
  • Doping
  • Magnetoelectric
  • Multiferroic
  • Phase transitions
  • Two-dimensional

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    Kharel, P., Kumarasiri, A., Dixit, A., Rogado, N., Cava, R. J., & Lawes, G. (2009). Scaling behaviour of magnetic transitions in Ni3V2O8. Philosophical Magazine, 89(22-24), 1923-1932. https://doi.org/10.1080/14786430802558585