On the Superstructures of Ta 2 O 5  and Nb 2 O 5 | Zendy

Spyridelis J. | Zendy; Delavignette P. | Zendy; Amelinckx S. | Zendy

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On the Superstructures of Ta 2 O 5 and Nb 2 O 5

Author(s) -

Spyridelis J.,

Delavignette P.,

Amelinckx S.

Publication year - 1967

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.19670190220

Subject(s) - tantalum , niobium , stoichiometry , diffraction , tantalum pentoxide , materials science , crystallography , shear (geology) , line (geometry) , unit (ring theory) , niobium pentoxide , superstructure , chemistry , geometry , thermodynamics , optics , physics , mathematics , metallurgy , composite material , mathematics education

The superstructures of tantalum and niobium pentoxide are studied. The observations made support the assumption that these, and related crystals, have a “shear structure” and that this shear structure can be observed directly. It is shown that the size of the unit cell depends on the exact stoichiometry of the compound. A model is proposed which explains both the details of the diffraction pattern and the geometry of the line system.

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