Strongly coupled charge-density wave transition in single-crystal Lu5Ir4Si10

B. Becker, N. G. Patil, S. Ramakrishnan, A. A. Menovsky, G. J. Nieuwenhuys, J. A. Mydosh, M. Kohgi, K. Iwasa

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Abstract

We report the observation of a strongly coupled first-order charge-density wave (CDW) transition in a high-quality single crystal of the intermetallic compound Lu5Ir4Si10. The first-order nature is ascertained by a very narrow and huge cusp (360 J/mol K) in the specific heat. The susceptibility and the resistivity also show sharp jumps at the transition TCDW=83K. The periodic lattice distortion associated with the CDW is exemplified by the formation of x-ray superlattice reflections along the tetragonal c axis with q ≈ (0, 0, 3/7)(T < 83K). Although our results are in accordance with a quasi-one-dimensional CDW scenario, the first-order transition suggests a strong interchain coupling. We propose Lu5Ir4Si10 as a paradigm of such strong-coupling CDW systems.

Original languageEnglish
Pages (from-to)7266-7269
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number11
DOIs
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Becker, B., Patil, N. G., Ramakrishnan, S., Menovsky, A. A., Nieuwenhuys, G. J., Mydosh, J. A., Kohgi, M., & Iwasa, K. (1999). Strongly coupled charge-density wave transition in single-crystal Lu5Ir4Si10. Physical Review B - Condensed Matter and Materials Physics, 59(11), 7266-7269. https://doi.org/10.1103/PhysRevB.59.7266