Abstract
We have studied YMnO3 by high-temperature synchrotron x-ray powder diffraction, and have carried out differential thermal analysis and dilatometry on a single crystal sample. These experiments show two phase transitions at about 1100 K and 1350 K, respectively. This demonstrates the existence of an intermediate phase between the room temperature ferroelectric and the high-temperature centrosymmetric phase. This study identifies for the first time the different high-temperature phase transitions in YMnO3.
Original language | English |
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Article number | 466212 |
Number of pages | 9 |
Journal | Journal of physics: Condensed matter |
Volume | 19 |
DOIs | |
Publication status | Published - 25 Oct 2007 |
Externally published | Yes |