Observations related to hydrogen in powder and single crystal samples of YBa2Cu3O7−δ

Autor:	U. Yaron, Eric Walker, D. Shaltiel, N. Kaplan, Danny Porath, A. Grayevsky
Rok vydání:	1994
Předmět:	Superconductivity Hydrogen Chemistry Mechanical Engineering Metals and Alloys Analytical chemistry Ab initio chemistry.chemical_element Crystal Mechanics of Materials X-ray crystallography Materials Chemistry Sample preparation Cuprate Single crystal Nuclear chemistry
Zdroj:	Journal of Alloys and Compounds. 204:79-82
ISSN:	0925-8388
Popis:	New observations related to hydrogenation of YBa 2 Cu 3 O 7−δ (YBCO) are reported: (a) The effects of sample preparation on the H concentration in “uncharged” YBCO samples is investigated, and it is shown through nuclear magnetic resonance measurements that samples of YBCO prepared by “standard” solid-state reaction procedures may contain ab initio up to 0.2 atoms formula −1 of hydrogen. (b) It is demonstrated that one may introduce up to 0.3 atoms formula −1 into single crystal samples of YBCO without destroying the macroscopic crystal. The significance of the above observations is discussed briefly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3366d6253858d99418fa410e137cac63 https://doi.org/10.1016/0925-8388(94)90074-4 Zobrazit plný text záznamu