Metal–insulator phase transition in TTT2I3 affected by iodine concentration

Autor:	Khidekel Mikhail L, Rustem B. Lyubovskii, I. F. Shchegolev, Rimma P. Shibaeva, Eduard B. Yagubskii, G. L. Zvereva, V. F. Kaminskii, A. V. Zvarykina
Rok vydání:	1977
Předmět:	Phase transition Transition temperature education Analytical chemistry chemistry.chemical_element Conductivity Condensed Matter Physics Iodine Electronic Optical and Magnetic Materials Degree (temperature) Crystallography chemistry Molecule Metal insulator phase transition
Zdroj:	Physica Status Solidi (a). 44:77-82
ISSN:	1521-396X 0031-8965
DOI:	10.1002/pssa.2210440107
Popis:	It is found that the iodine content in the complex TTT2I3 may be varied from 1.5 to ≈ 1.55 atoms per molecule of TTT. Increasing of the iodine concentration in the complex gives rise to an increase in the degree of incommensurability of the TTT and the I sublattices and also the degree of disordering associated with losing the correlation in arrangement of different one-dimensionally ordered iodine chains. It results in the change of conducting and magnetic properties of the complex. The temperature of the conductivity maximum moves down as the iodine concentration is increased in the complex, and the maximum is the higher, the lower its temperature. It is found that a phase transition of the metal-insulator type exists in TTT2I3 with a transition temperature depending on the iodine content. [Russian Text Ignored].
Databáze:	OpenAIRE
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