| Numéro |
J. Phys. IV France
Volume 12, Numéro 9, November 2002
|
|
|---|---|---|
| Page(s) | 347 - 350 | |
| DOI | https://doi.org/10.1051/jp4:20020434 | |
J. Phys. IV France 12 (2002) Pr9-347
DOI: 10.1051/jp4:20020434
Charge-density waves in Er 5Ir 4Si 10 type compounds
S. van Smaalen1, P. Daniels1, F. Galli2, R. Feyerherm3, E. Dudzik3, G.J. Nieuwenhuys2 and J.A. Mydosh21 Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
2 Kamerlingh Onnes Laboratory, University of Leiden, Leiden, The Netherlands
3 HahnMeitner Institute, Berlin, Germany
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.
© EDP Sciences 2002