A new order parameter model for the improper ferroelastic phase transitions in KMnF3 single crystal

This paper proposes a new order parameter model which satisfactorily explains complicated symmetry changes, the temperature–pressure (T–P) phase diagram and elastic anomalies observed experimentally with the improper ferroelastic phase transitions in multiferroic KMnF3 single crystal. First, it is s...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Acta crystallographica. Section A, Foundations and advances Foundations and advances, 2024-07, Vol.80 (4), p.329-338
Hauptverfasser:	Kim, Il-Hun, Kim, Il-Hwan, Jang, Kum-Ok, Kim, Song-Won
Format:	Artikel
Sprache:	eng
Schlagworte:	Anomalies elastic anomalies improper ferroelastic phase transitions KMnF3 single crystal Landau theory Order parameters Phase diagrams Phase transitions reducible order parameter model Single crystals sixth‐order structurally stable Landau potential model T–P phase diagram wavevector star channel group
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!