Volume 1 Number 1 (Jul. 2011)
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IJAPM 2011 Vol.1(1): 38-42 ISSN: 2010-362X
DOI: 10.7763/IJAPM.2011.V1.8

Structural and Electronic Parameters of Complex Niobates and Tantalates

V. V. Atuchin, S. V. Borisov, N. V. Pervukhina, and Zhaoming Zhang

Abstract—Structural properties of anhydrous Nb5+-niobates and Ta5+-tantalates have been evaluated with the help of classic polyhedra approach and atomic net model. X-ray photoelectron spectroscopy (XPS) is utilized as a powerful method to determine the binding energy (BE) of individual atoms in the crystal lattice. Chemical bonding effects are discussed for niobates and tantalates using the binding energy differences ΔNb = (BE O 1s – BE Nb 3d5/2) and ΔTa = (BE O 1s – BE Ta 4f7/2) as key parameters to relate structural and electronic properties of the compounds with pronounced dielectric nature. Photocatalytic materials such as Sr2Nb2O7, Ta2O5, LiTaO3, and Sr2Ta2O7 are considered in particular.

Index Terms—niobate; tantalate; atomic net; XPS; chemical bonding.

V. V. Atuchin is with the Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, 630090, Russia (e-mail: atuchin@thermo.isp.nsc.ru).
S. V. Borisov is with the Laboratory of Crystal Chemistry, Institute of Inorganic Chemistry, SB RAS, Novosibirsk, 630090, Russia (e-mail: borisov@niic.nsc.ru).
N. V. Pervukhina is with the Laboratory of Crystal Chemistry, Institute of Inorganic Chemistry, SB RAS, Novosibirsk, 630090, Russia (e-mail: pervukh@niic.nsc.ru).
Zhaoming Zhang is with the Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia (e-mail: zzx@ansto.gov.au).

Cite:V. V. Atuchin, S. V. Borisov, N. V. Pervukhina, and Zhaoming Zhang, "Structural and Electronic Parameters of Complex Niobates and Tantalates," International Journal of Applied Physics and Mathematics vol. 1, no. 1, pp. 38-42, 2011.

General Information

ISSN: 2010-362X (Online)
Abbreviated Title: Int. J. Appl. Phys. Math.
Frequency: Quarterly
DOI: 10.17706/IJAPM
Editor-in-Chief: Prof. Haydar Akca 
Abstracting/ Indexing: INSPEC(IET), CNKI, Google Scholar, EBSCO, Chemical Abstracts Services (CAS), etc.
E-mail: ijapm@iap.org
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