EPR investigation of the trivalent chromium complexes in SrTiO.sub.3./sub..

0427100 - FZÚ 2015 RIV GB eng J - Článek v odborném periodiku
Azamat, Dmitry - Dejneka, Alexandr - Lančok, Ján - Jastrabík, Lubomír - Trepakov, Vladimír - Bryknar, Z. - Neverova, E.V. - Badalyan, A. G.
EPR investigation of the trivalent chromium complexes in SrTiO₃.
Journal of Physics and Chemistry of Solids. Roč. 75, č. 2 (2014), s. 271-275. ISSN 0022-3697. E-ISSN 1879-2553
Grant CEP: GA MŠMT(CZ) LM2011029; GA TA ČR TA01010517; GA ČR GAP108/12/1941
Grant ostatní: SAFMAT(XE) CZ.2.16/3.1.00/22132
Institucionální podpora: RVO:68378271
Klíčová slova: electron paramagnetic resonance (EPR) * SrTiO₃ * chromium complexes
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.853, rok: 2014

The trivalent chromium centers were investigated by means of electron paramagnetic resonance (EPR) in SrTiO3 single crystals grown using the Verneuil technique.It was shown that the charge compensation of the Cr3+ - V0 dominant centers in octahedral environment is due to the remote oxygen vacancy located on the axial axis of the center.In order to provide insight into spin-phonon relaxation processes the studies of axial distortion of Cr3+ - V0 centers have been performed as function of temperature.The analysis of the trigonal Cr3+ centers found in SrTiO3 indicates the presence of the nearest-neighbor strontium vacancy.
Trvalý link: http://hdl.handle.net/11104/0232707