Structural Phase Transitions with Ferroelectricity in a Hexagonal Antiferromagnetic Compound: TlFeCl3

Autor:	Tetsuya Kato, Kiyoko Yamanaka
Rok vydání:	2002
Předmět:	Hysteresis Structural phase Materials science Birefringence Condensed matter physics Phase (matter) Physics::Optics General Physics and Astronomy Antiferromagnetism Dielectric Ferroelectricity Magnetic susceptibility
Zdroj:	Journal of the Physical Society of Japan. 71:1757-1760
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.71.1757
Popis:	In order to clarify structural and magnetic phase transitions of a hexagonal triangular antiferromagnet TlFeCl 3 , dielectric and magnetic susceptibilities, D – E hysteresis loops and optical birefringence were measured. Successive structural phase transitions at 179 K( T 2 ), 83 K( T 3 ) and 79 K( T 4 ) were identified. At a range of temperatures T 4 < T < T 3 (phase IV), opened D – E loops were clearly observed. The dielectric behavior of the successive structural phase transitions of TlFeCl 3 were confirmed to be quite similar to those of KNiCl 3 and RbMnBr 3 which are Group I of KNiCl 3 -family crystals.
Databáze:	OpenAIRE
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