Successive Phase Transitions in Potassium Hexachloroselenate(IV) Revealed by 35Cl NQR

Autor:	Tetsuo Asaji, Makoto Kaga, Takehiko Chiba, Masaki Ohkawa
Rok vydání:	1996
Předmět:	Phase transition Materials science Condensed matter physics chemistry Potassium Spin–lattice relaxation General Physics and Astronomy chemistry.chemical_element Soft modes Physical and Theoretical Chemistry Mathematical Physics
Zdroj:	Zeitschrift für Naturforschung A. 51:705-709
ISSN:	1865-7109 0932-0784
DOI:	10.1515/zna-1996-5-656
Popis:	K2SeCl6 undergoes structural phase transitions of first order at 35 K, 65 K, and 79 K. The temperature dependence of the 35Cl NQR spin-lattice relaxation time suggests that the phase transitions at 65 K and 79 K are displacive ones associated with a resonant soft mode. The presence of a precursor cluster is suggested by the temperature dependence of the signal intensity above 79 K.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::189479b1f8e8977dcec9f0b788df8103 https://doi.org/10.1515/zna-1996-5-656 Zobrazit plný text záznamu