Short-term synthesis of poly- and single-crystalline iron monochalcogenides

Autor:	B. T. Melekh, V. I. Bakharev, Mikhail P. Volkov, N. F. Kartenko
Rok vydání:	2010
Předmět:	Superconductivity Chalcogen Materials science Carbonyl iron Physics and Astronomy (miscellaneous) chemistry Annealing (metallurgy) Lattice (order) Analytical chemistry chemistry.chemical_element Tellurium Critical field Selenium
Zdroj:	Technical Physics Letters. 36:251-253
ISSN:	1090-6533 1063-7850
Popis:	Poly- and single-crystalline samples of the Fe(Se,Te)1 − δ system have been synthesized for short times by annealing bulk iron in chalcogen vapors and by reacting powdered iron with chalcogen melts. The lattice unit cell parameters and critical temperatures (T c) of the superconducting transition in the synthesized compounds agree with published data for the materials obtained by long-term synthesis using other methods. For Fe(Se0.8Te0.2)0.82 block crystals, the temperature dependence of the second critical field in the vicinity of T c is linear with a slope of −4.9 T/K.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ae3460c25f15720443563475ad45f61b https://doi.org/10.1134/s1063785010030156 Zobrazit plný text záznamu Plný text ve formátu PDF