Superconducting Behavior of Tetragonal T ‘Eu2‐xCexO4±δ

Autor:	V.J. Melim, C. W. Kimball, D. G. Hinks, Y. Zheng, Bogdan Dabrowski, Weimin Peng
Rok vydání:	1989
Předmět:	Superconductivity symbols.namesake Tetragonal crystal system Materials science Mössbauer spectroscopy Analytical chemistry symbols Narrow range Absorption (chemistry) Debye model Ion
Zdroj:	MRS Proceedings. 169
ISSN:	1946-4274 0272-9172
Popis:	Eu2.xCexCuO4±δ (0 ≤ x ≤ 0.17) has been synthesized with the tetragonal T’ structure. AC susceptibility and resistance measurements show that Eu2‐xCexCuO4±δ becomes superconducting with τc∼13 K for x= 0.15 and 0.17, when prepared under reducing conditions. The 151Eu Mossbauer shift shows that the Euvalence falls into a narrow range near Eu 3+ . The temperature dependence of the Mossbauer absorption yields a Debye temperature of 319 K for the Eu ion in Eu1.85Ce0.15CuO4±δ
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b9a8a9c4f345da55fa9396921878b0ed https://doi.org/10.1557/proc-169-165 Zobrazit plný text záznamu Full text from SpringerLink