Phase transitions in Lu2 Ir3 Si5: An experimental investigation by transport measurements

Y. K. Kuo, K. M. Sivakumar, T. H. Su, C. S. Lue

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23 Citations (Scopus)

Abstract

We have investigated the coupled structural and electronic phase transition in the rare-earth ternary silicide Lu2 Ir3 Si5 by means of electrical resistivity (ρ), Seebeck coefficient (S), as well as thermal conductivity (κ) measurements. Near the phase transition, pronounced anomalies in these transport properties with a significantly large hysteresis of about 40 K were noticed. By comparing the transition characteristics with the earlier reported charge-density-wave (CDW) systems R5 Ir4 Si10 (R=rare-earth elements), our present investigation infers the possibility for the CDW transition accompanying a structural transition in this compound. In addition, possible mechanisms for the observed thermal hysteresis have also been proposed.

Original languageEnglish
Article number045115
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number4
DOIs
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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