The tricritical point of a ferroelectric semiconductor in the field of strong electromagnetic wave

Autor:	V. I. Litvinov, K. A. Valuyev, K. D. Tovstyuk
Rok vydání:	1981
Předmět:	Quantum phase transition Physics Phase transition Condensed matter physics Tricritical point Quantum critical point Optical field Phase velocity Condensed Matter Physics Critical field Electromagnetic radiation Electronic Optical and Magnetic Materials
Zdroj:	Ferroelectrics. 34:161-164
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150198108238718
Popis:	Within a two-band model of narrow-gap semiconductor, the interaction between electrons and transverse optical (TO) phonons is considered in the field of strong electromagnetic wave. The temperature of the structural phase transition due to TO-mode condensation with q = 0 is found to decrease in the field of the wave. Increase in the energy of direct optical interband dipole transition λ produces a change in the kind of the phase transition, so that a tricritical point appears in the phase diagram with variables (T, λ). The critical field intensity of the wave is found to be 106V/cm in the case of SnTe.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2615bfe18350aac16f408dbb9d3c64bd https://doi.org/10.1080/00150198108238718 Zobrazit plný text záznamu