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). pp. 7266-7269. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v59/i11/p7266_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.59.7266
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=83 K. 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<83 K). 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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 40855 |
| Deposited On: | 25 May 2011 12:00 |
| Last Modified: | 25 May 2011 12:00 |
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