Observation of two separate charge density wave transitions in Gd2Te5 via transmission electron microscopy and high-resolution X-ray diffraction

K. Y. Shin, N. Ru, I. R. Fisher, C. L. Condron, M. F. Toney, Y. Q. Wu, M. J. Kramer

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Gd2Te5 is a layered material consisting of alternating single and double square planar Te sheets. At room temperature the material hosts a complex lattice modulation characterized by multiple in-plane wavevectors. Diffraction measurements performed via transmission electron microscopy and high-resolution X-ray scattering reveal two distinct transitions at Tc1 = 410(3) and Tc2 = 532(3) K, associated with an on-axis incommensurate lattice modulation and an off-axis commensurate lattice modulation respectively. Our results show that the two lattice modulations are separate in origin but that there is some coupling between them.

Original languageEnglish
Pages (from-to)332-335
Number of pages4
JournalJournal of Alloys and Compounds
Volume489
Issue number2
DOIs
StatePublished - 21 Jan 2010

Keywords

  • Charge density wave
  • Intermetallics
  • Transmission electron microscopy
  • X-ray diffraction

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