About: Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals

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About: Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals Goto Sponge NotDistinct Permalink

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Description	Electron spin resonance spectra were studied in the nominally pure and 0.05% Li-doped single crystals of CdWO4. The measurements revealed the presence of Fe3+ ions in the undoped crystal and Mn2+ ions in the Li-doped crystal with concentrations of about 20-70 ppm. The zero-field splitting parameters are determined with a high precision for both accidental impurities: (i) Fe3+: b0 2 = -0.7567(10) cm-1, b2 2 = - 0.3150(10) cm-1 and (ii) Mn2+: b0 2 = -0.1799 (10) cm-1, b2 2 = 0.1445(20) cm-1. They are in a good agreement with the early data for Mn2+ but differ by about 5% in the case of Fe3+ . We have found that the Li+ doping essentially influences the charge balance in the lattice. The results suggest that the Li doping restores the ionic charges of iron and manganese to 2+, conventional for CdWO4 lattice, diminishing thus their participiation in photoinduced processes. Electron spin resonance spectra were studied in the nominally pure and 0.05% Li-doped single crystals of CdWO4. The measurements revealed the presence of Fe3+ ions in the undoped crystal and Mn2+ ions in the Li-doped crystal with concentrations of about 20-70 ppm. The zero-field splitting parameters are determined with a high precision for both accidental impurities: (i) Fe3+: b0 2 = -0.7567(10) cm-1, b2 2 = - 0.3150(10) cm-1 and (ii) Mn2+: b0 2 = -0.1799 (10) cm-1, b2 2 = 0.1445(20) cm-1. They are in a good agreement with the early data for Mn2+ but differ by about 5% in the case of Fe3+ . We have found that the Li+ doping essentially influences the charge balance in the lattice. The results suggest that the Li doping restores the ionic charges of iron and manganese to 2+, conventional for CdWO4 lattice, diminishing thus their participiation in photoinduced processes. (en)
Title	Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals (en)
skos:prefLabel	Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals (en)
skos:notation	RIV/68378271:_____/11:00364035!RIV12-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA100100810), Z(AV0Z10100521)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Laguta, Valentyn Rosa, Jan Hybler, Jiří Nikl, Martin Buryi, Maxim
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	197101
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00364035
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	defects; electron spin resonance; scintillators; wolframite (en)
http://linked.open.../riv/klicoveSlovo	electron spin resonance defects scintillators wolframite
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[9D6AF6D928F9]
http://linked.open...i/riv/nazevZdroje	Physica Status Solidi B-Basic Solid State Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Energy trapping processes in novel complex oxide scintillators
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	248
http://linked.open...iv/tvurceVysledku	Nikl, Martin Buryi, Maxim Hybler, Jiří Laguta, Valentyn Rosa, Jan
http://linked.open...ain/vavai/riv/wos	000288856300037
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films
issn	0370-1972
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/pssb.201046099
is http://linked.open...avai/riv/vysledek of	Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals Electron spin resonance investigation of undoped and Li-doped CdWO4 scintillator crystals

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