Synthesis, superconducting properties and structural (including electron diffraction) studies of Na chi NbO2 and Li chi NbO2 / Tyutyunnik AP,Zubkov VG,Kellerman DG,Pereliaev VA,Karkin AE,Svensson G // EUROPEAN JOURNAL OF SOLID STATE AND INORGANIC CHEMISTRY. - 1996. - V. 33, l. 1. - P. 53-65.

ISSN/EISSN:

0992-4361 / нет данных

Type:

Article

Abstract:

Monophasic NaxNbO2 (x = 0.5 - 0.6), T-c approximate to 4.1 K was prepared by solid state reaction between Na3NbO4 and Nb. X-ray powder diffraction data from a monophasic sample were used for a refinement of the structure of Na0.5NbO2 (R(p) = 7.4 \% and R(I) = 5.3 \%), using the Rietveld method. At low x-values a closely related second phase can occur. Rietveld refinement using X-ray powder diffraction data showed this phase to be isostructural with NaNbO2 but with the chemical formula Na0.1NbO2. Transmission electron microscopy studies of NaxNbO2 and LixNbO2 revealed the presence of superstructures in some crystallites. The electron diffraction patterns resemble to some extent those reported for transformations among tantalum chalcogenides.

Author keywords:

CHARGE-DENSITY WAVES; AGXTAS2 SYSTEM; SUPER-LATTICES; 1T TAS2; LIXNBO2

DOI:

нет данных

Web of Science ID:

ISI:A1996TZ51800006

Соавторы в МНС:

—

Другие поля

Поле	Значение
Publisher	GAUTHIER-VILLARS
Address	S P E S-JOURNAL DEPT, 120 BD ST GERMAIN, F-75006 PARIS, FRANCE
Language	English
Keywords-Plus	CHARGE-DENSITY WAVES; AGXTAS2 SYSTEM; SUPER-LATTICES; 1T TAS2; LIXNBO2
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear; Chemistry, Physical
ResearcherID-Numbers	Karkin, Alexander/J-6712-2013 Tyutyunnik, Alexander/P-2230-2015
ORCID-Numbers	Karkin, Alexander/0000-0003-0464-4762
Number-of-Cited-References	35
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	19
Journal-ISO	Eur. J. Solid State Inorg. Chem.
Doc-Delivery-Number	TZ518