Charge-density waves in Er₅Ir₄Si₁₀ type compounds

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van Smaalen, Sander ; Daniels, Peter ; Galli, Federica ; Feyerherm, R. ; Dudzik, D. ; Nieuwenhuys, Gerard J. ; Mydosh, J. A.:
Charge-density waves in Er₅Ir₄Si₁₀ type compounds.
In: Journal de Physique 4. Bd. 12 (2002) Heft 9 . - S. 347-350.
ISSN 1155-4339
DOI: https://doi.org/10.1051/jp4:20020434

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Abstract

X-ray diffraction with synchrotron radiation has been used to study the phase transitions in compounds M5Ir 4Si 10 with M a rare-earth metal. For M = Er, Ho and Er 0.84Lu 0.16 phase transitions have been found towards a combined commensurate/incommensurate state, that locks into a commensurate state at lower temperatures. For M = Lu and Er 0.66Lu 0.34 there is a single transition towards a commensurate state. The results are interpreted in terms of commensurate structural transitions that induce incommensurate CDWs.