A new thallium-strontium-lanthanum cobaltite / Kirpichtchikova T,Doumerc JP,Neiman A // MATERIALS RESEARCH BULLETIN. - 2000. - V. 35, l. 9. - P. 1411-1418.

ISSN/EISSN:

0025-5408 / нет данных

Type:

Article

Abstract:

A general technique for the preparation of complex Tl-Sr-La cobaltites, via the interaction of a La2-xSrxCoO4-y precursor with Tl2O3 in a sealed gold ampoule was elaborated. It allowed obtaining the compound Tl0.64Sr1.5La0.5CoO5-epsilon, whose bulk and surface compositions were investigated by EPMA and ESCA, respectively. This new phase is isostructural with the 1201 member of the thallium cuprate series with tetragonal unit-cell parameters a = 3.781 Angstrom, = 8.697 Angstrom. The specific features of the synthesis mechanism that result in kinetic limitations of the purity of the reaction product were analyzed. Various possibilities for accommodating the large observed thallium deficiency were considered regarding the complex structure of the oxide. (C) 2000 Elsevier Science Ltd. All rights reserved.

Author keywords:

inorganic compounds; oxides; X-ray diffraction OXIDES; TLSR2COO5; BA

DOI:

10.1016/S0025-5408(00)00336-6

Web of Science ID:

ISI:000165744200004

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUL 1
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Keywords-Plus	OXIDES; TLSR2COO5; BA
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Number-of-Cited-References	17
Journal-ISO	Mater. Res. Bull.
Doc-Delivery-Number	381CF