Experimental evidence for an intermediate phase in the multiferroic YMnO3

Experimental evidence for an intermediate phase in the multiferroic YMnO3

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of physics. Condensed matter 2007-11, Vol.19 (46), p.466212-466212 (9)
Hauptverfasser: Nénert, G, Pollet, M, Marinel, S, Blake, G R, Meetsma, A, Palstra, T T M
Format: Artikel
Sprache:eng
Schlagworte:
Chemical Sciences
Condensed Matter
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Crystalline state (including molecular motions in solids)
Crystallographic aspects of phase transformations
pressure effects
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Ferroelectricity and antiferroelectricity
Material chemistry
Other
Phase transitions and curie point
Physics
Structure of solids and liquids
crystallography
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/19/46/466212