0133963 - FZU-D 20020250 RIV GB eng J - Journal Article
Badalyan, A. G. - Baranov, P. G. - Azamat, D. V. - Trepakov, V. A. - Azzoni, C. B. - Galinetto, P. - Mozzati, M. C. - Jastrabík, Lubomír - Rosa, Jan
Electron paramagnetic resonance of copper centres in potassium tantalate single crystals.
Journal of Physics-Condensed Matter. Roč. 14, - (2002), s. 6855-6863. ISSN 0953-8984. E-ISSN 1361-648X
R&D Projects: GA MŠMT LN00A015
Institutional research plan: CEZ:AV0Z1010914
Keywords : EPR * copper centres * potassium tantalate
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.775, year: 2002

EPR resonanse of exchange-coupled of C²⁺ ions was observed in KTaO₃:Cu, K_1-xLi_xTa_1-yNb_yO₃:Cu single crystals. The spectra are typical of centres with S=1 and tetragonal symmetry. The experimental results are explaned in terms of a pair centre model, which consists of a chain of two equivalent copper ions and three oxygen vacancies.
Permanent Link: http://hdl.handle.net/11104/0031910