Details
| Original language | English |
|---|---|
| Pages (from-to) | 285-295 |
| Number of pages | 11 |
| Journal | Phase transitions |
| Volume | 58 |
| Issue number | 4 SEC. A |
| Publication status | Published - 1996 |
Abstract
A high precision temperature dependent X-ray powder diffraction study has been carried out on Ti4O7 in the temperature range between 180 and 90 K enclosing the metal-insulator and the so-called Ti4O7-Verwey transition. Both transitions are characterized by negative volume effects as can be deduced from the temperature dependent course of the lattice parameters. Total strains induced by the formation of the intermediate phase are about 0.007 and about twice that value in the low temperature phase. In successive heating and cooling runs it is observed that the low temperature transition occurs stepwise, possibly related to the deterioration of the modulated structure.
Keywords
- Phase transitions, Spontaneous strain, TiO
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Instrumentation
- Materials Science(all)
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In: Phase transitions, Vol. 58, No. 4 SEC. A, 1996, p. 285-295.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - X-ray powder diffraction study of the phase transitions in Ti4O7
AU - Melzer, R.
AU - Rüscher, C. H.
PY - 1996
Y1 - 1996
N2 - A high precision temperature dependent X-ray powder diffraction study has been carried out on Ti4O7 in the temperature range between 180 and 90 K enclosing the metal-insulator and the so-called Ti4O7-Verwey transition. Both transitions are characterized by negative volume effects as can be deduced from the temperature dependent course of the lattice parameters. Total strains induced by the formation of the intermediate phase are about 0.007 and about twice that value in the low temperature phase. In successive heating and cooling runs it is observed that the low temperature transition occurs stepwise, possibly related to the deterioration of the modulated structure.
AB - A high precision temperature dependent X-ray powder diffraction study has been carried out on Ti4O7 in the temperature range between 180 and 90 K enclosing the metal-insulator and the so-called Ti4O7-Verwey transition. Both transitions are characterized by negative volume effects as can be deduced from the temperature dependent course of the lattice parameters. Total strains induced by the formation of the intermediate phase are about 0.007 and about twice that value in the low temperature phase. In successive heating and cooling runs it is observed that the low temperature transition occurs stepwise, possibly related to the deterioration of the modulated structure.
KW - Phase transitions
KW - Spontaneous strain
KW - TiO
UR - http://www.scopus.com/inward/record.url?scp=0006785788&partnerID=8YFLogxK
U2 - 10.1080/01411599608241825
DO - 10.1080/01411599608241825
M3 - Article
AN - SCOPUS:0006785788
VL - 58
SP - 285
EP - 295
JO - Phase transitions
JF - Phase transitions
SN - 0141-1594
IS - 4 SEC. A
ER -