Shallow traps in pure KTaO.sub.3./sub. crystals

0134062 - FZU-D 20020350 RIV GB eng J - Článek v odborném periodiku
Laguta, V. V. - Glinchuk, M. D. - Bykov, I. P. - Cremona, A. - Galinetto, P. - Jastrabík, Lubomír - Rosa, Jan
Shallow traps in pure KTaO₃ crystals.
Radiation Effects and Defects in Solids. Roč. 157, - (2002), s. 721-727. ISSN 1042-0150. E-ISSN 1029-4953
Grant CEP: GA MŠMT LN00A015
Výzkumný záměr: CEZ:AV0Z1010914
Klíčová slova: ferroelectric * point defects * ESR
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 0.290, rok: 2002

We made TSL TL and ESR measurements on single crystals of potassium tantalate in the temperature range 4.2-290K.We revealed two sorts of O - shallow hole centers which are responsible for photoconductivity and photoluminescence enhanmcement. Experimental data were treated in a simple one-trap/one-recombination center model, which takes into account the presence of "thermally disconnected" deep electron traps.
Trvalý link: http://hdl.handle.net/11104/0032000