Electron Spin Resonance of Tl<sup>++</sup> Centres in KCl Crystals

Dreybrodt, Wolfgang; Silber, D.

doi:10.1002/pssb.19670200134

Cited by 58 publications

(16 citation statements)

References 8 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…) A different transition assignment reported in [25]. ' ) Similar transition assignment reported in [99].…”

Section: Energy Level Structure Of Ns'-centers In Crystalsmentioning

confidence: 68%

“…Some of the OA bands observed in the spectra of the cubic nsl-centers have been described [25,75 to 771 with the molecular model, extensively employed for describing the EPR spectra [25,78,791. The molecular model assumes that the [MX,] cluster with 0, symmetry formed by the nsl-ionlatom and the six NN halogen ions (in alkali halides) is responsible for the observed properties.…”

Section: Energy Level Structure Of Ns'-centers In Crystalsmentioning

confidence: 99%

“…T12+ centers seem to be, however, not formed by X-ray irradiation of LiC1:Tl [151]. The highest concentration of M:+ centers is obtained [25,29,150, 1521 by irradiating at 77 K and pulse-annealing at temperatures where the holes are mobile (reaction (6a)). T12+ and T1° centers were also observed in KC1 : T1 crystals after UV illumination in the OA bands of the T1' ions [43].…”

Section: Trapped Hole Ns'-centersmentioning

confidence: 99%

See 2 more Smart Citations

Spectroscopy of the ns¹‐Centers in Ionic Crystals

Nistor

Schoemaker

Ursu

1994

Physica Status Solidi (b)

View full text Add to dashboard Cite

“…) A different transition assignment reported in [25]. ' ) Similar transition assignment reported in [99].…”

Section: Energy Level Structure Of Ns'-centers In Crystalsmentioning

confidence: 68%

Section: Energy Level Structure Of Ns'-centers In Crystalsmentioning

confidence: 99%

Section: Trapped Hole Ns'-centersmentioning

confidence: 99%

See 1 more Smart Citation

Spectroscopy of the ns¹‐Centers in Ionic Crystals

Nistor

Schoemaker

Ursu

1994

Physica Status Solidi (b)

View full text Add to dashboard Cite

“…spin resonance, and magnetic circulal-dichroism Therefore, another electron surplus centre would studies o f~~~:~l + irradiated with x ol-gamma rays be formed above 280 K to maintain the charge neusuggested that the TI+ ion traps both ejectrons and trality in the irradiated crystal. Here we restrict our holes, forming TIO and TI'+ (1)(2)(3). six absorption attention to the new colour-centre production by bands were observed as bands to the room tempel-ature irradiation of KCI:TI+.…”

Section: Introductionmentioning

confidence: 99%

New trapped-electron and trapped-hole centres in X-rayed KCl:Tl⁺ crystals

Tsuboi¹

1979

Can. J. Phys.

View full text Add to dashboard Cite

The optical absorption spectra of KC1 crystals containing TI+ ions have been investigated. After X-ray irradiation at 300 K two absorption bands are observed at 228 and 280 nm at 77 K whichdo not arise from the same centres. A correlation among the 228 nm. 280 nm. and F bands is found during the optical or thermal excitation of the X-rayed crystals. The 228 nm band is assigned to a trapped-hole centre, namely V2 centre closely associated with TIt. while the 280 nrn hand is assigned to a trapped-electron centre, TI-. On a etudik le spectre d'absorption optique de crist;~ux de KC1 contenant des ions TI+. Apres irradiation aux rayons X I 1 300 K, on a observC i 228 et 280 nm h 77 K , deux bandes d'absorption qui ne proviennent pas des memes centres. On trouve une corl.Clation entre les bandes i 228 nm, la bande 280 nrn et la bande F durant I'excitation optique ou therrnique des cristnux il-radies ;tux rayons X. La bande h 228 nm est attribuCe B un centre i trou piCge. c'est-i-dire un centre V2 Ctroitement associke 1 TI+. alors que la bande : I 280 nm est attribuee h un centre ,;I electron piege, TI-. Can. J . Phys.. 57. 1510(1979) [Tnduit par le journal] Can. J. Phys. Downloaded from www.nrcresearchpress.com by University of P.E.I. on 11/18/14 For personal use only.

show abstract

“…The EPR of TP+ was subsequently observed in irradiated KC1:TI (Dreybrodt and Silber 1967), but the EPR of TI0 has not yet been reported. We have carried out magnetic circular dichroism (MCD) measurements on KCI :T1 after x-irradiation at 77 K; our results are consistent with the presence of both TI0 and T12+ in the crystals, and enable us to give level assignments to some of the optical transitions.…”

mentioning

confidence: 99%