Permittivity spectra and structure of d-bands of germanium telluride, tin telluride and lead telluride
Based on the experimental absorption spectra, the permittivity spectra of GeTe, SnTe, and PbTe crystals were obtained in the region of electron transitions from core d -bands of cations. Their specific features and general behavior are revealed. The permittivity spectra of each crystal were decomposed into six elementary components and their main parameters were determined by using of combined Argand diagrams method. Based on the theory of interband and exciton transitions, the nature of the formation of these oscillators was proposed.
Keywords
теллурид германия, теллурид олова, теллурид свинца, диэлектрическая проницаемость, диаграмма Арганда, параметры осциллятора, зонная структура, междузонные переходы, экситон, germanium telluride, tin telluride, lead telluride, permittivity, Argand diagram, oscillator parameters, band structure, interband transitions, excitonAuthors
Name | Organization | |
Perevoshchikov D.A. | LLC «Izhevsk Radio Plant» | perevdm@mail.ru |
Sobolev V.Val. | Kalashnikov Izhevsk State Technical University | Soboleff.val@yandex.ru |
Kalugin A.I. | Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences | ackad1976@yandex.ru |
Antonov E.A. | Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences | slick25@mail.ru |