Anomalous Nature of Neutral-to-Ionic Phase Transition in Tetrathiafulvalene-Chloranil

Autor:	J. B. Torrance, Alberto Girlando, J. J. Mayerle, S. J. LaPlaca, Patrick Batail, V. Y. Lee, J. I. Crowley
Rok vydání:	1981
Předmět:	Quantum phase transition Phase transition Materials science Infrared Chloranil General Physics and Astronomy Ionic bonding chemistry.chemical_compound Crystallography symbols.namesake chemistry symbols Molecule Raman spectroscopy Tetrathiafulvalene
Zdroj:	Physical Review Letters. 47:1747-1750
ISSN:	0031-9007
DOI:	10.1103/physrevlett.47.1747
Popis:	A phase transition starting at 84 K and indicated by a marked color change of the sample has been found in the organic insulator tetrathiafulvalene-chloranil. Optical, infrared, and Raman measurements indicate that this is a reversible transition from a nominally neutral (N) solid to a nominally ionic (I) salt. Surprisingly, the N-I transition is not first order, but occurs over a broad temperature region (\ensuremath{\sim}30 K), in which there is a coexistence of N and I molecules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::798b4c0d518e59e3a2c976f05e3b3c4d https://doi.org/10.1103/physrevlett.47.1747 Zobrazit plný text záznamu