Electron paramagnetic resonance related to optical charge-transfer processes in ZnSe:Ti

Dziesiaty, J.; Peka, P.; Lehr, M. U.; Schulz, Hans‐Joachim; Klimakow, A.

doi:10.1103/physrevb.49.17011

Cited by 24 publications

(10 citation statements)

References 19 publications

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“…10 This is remarkable insofar as our recent experiments on V impurities in ZnS and ZnSe point towards an interplay of these more complicated possibilities.…”

Section: Discussionmentioning

confidence: 94%

Vanadium centers in ZnTe crystals. I. Optical properties

et al. 1996

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In ZnTe:V bulk crystals with nominal vanadium concentrations between 1000 and 7000 ppm three vanadium-ion states V ϩ , V 2ϩ , and V 3ϩ were found in low-temperature optical measurements. No-phonon lines of the internal emissions were detected for the 5 E(D)→ 5 T 2 (D) transition of V ϩ ͑d 4 ͒ at 3401 cm Ϫ1 ͑0.422 eV͒, for 4 T 2 (F)→ 4 T 1 (F) of V 2ϩ ͑d 3 ͒ at 4056 cm Ϫ1 ͑0.503 eV͒, and for 3 T 2 (F)→ 3 A 2 (F) of V 3ϩ ͑d 2 ͒ at 4726 cm Ϫ1 ͑0.586 eV͒. The energies of the internal transitions are reduced with respect to the corresponding transitions in ZnS:V and ZnSe:V. The respective excitation spectra display, in addition to broad charge-transfer bands, higher excited levels of the individual charge states. Crystal-field calculations of the detected transition energies based on the Tanabe-Sugano scheme are presented. With the help of sensitization experiments, a one-electron model is designed, in which the donor level ͑V 2ϩ /V 3ϩ ͒ is situated 12 500 cm Ϫ1 ͑1.55 eV͒ below the conduction-band edge and the acceptor level ͑V 2ϩ /V ϩ ͒ 9400 cm Ϫ1 ͑1.17 eV͒ above the valence-band edge. The dynamical behavior of the three infrared luminescence bands was measured. Decay time constants of 43 s ͑V ϩ ͒, 120 s ͑V 2ϩ ͒, and 420 s ͑V 3ϩ ͒ were found. Electron-paramagnetic-resonance ͑EPR͒ results measured on the same samples are presented in an accompanying paper and confirm the optical detection of isolated substitutional V 2ϩ ͑d 3 ͒ and V 3ϩ ͑d 2 ͒ ions. Relations between the EPR and optical results are discussed.

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“…10 This is remarkable insofar as our recent experiments on V impurities in ZnS and ZnSe point towards an interplay of these more complicated possibilities.…”

Section: Discussionmentioning

confidence: 94%

Vanadium centers in ZnTe crystals. I. Optical properties

et al. 1996

Self Cite

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“…We have not herein, or previously (1), considered JahnTeller distortions which, by reference to other d 1 ions in zircon (20,21) and Ti 3ϩ ions in other crystals (22), are presumably present. It was found that there are apparently no features in the present study which required such an analysis.…”

Section: A the Electronic Zeeman And Nuclear Hyperfine Interactionsmentioning

confidence: 89%

Large-Magnitude High-Spin Nuclear Parameters in a Ti3+Center from X-band EPR Measurements at 10 K

Tennant

Claridge

1999

Journal of Magnetic Resonance

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“…The optical absorption and EPR spectra of V 3+ and Ti 2+ in tetrahedral crystals have been reported [21][22][23][24]. Their results indicate that these TMIs usually occupy sites of cubic symmetry.…”

Section: Calculation and Analysismentioning

confidence: 91%

“…V 3+ and Ti 2+ , which are usually regarded as the typical ions with d 2 configuration, have been extensively studied by many physicists and chemists [18][19][20][21][22][23][24][25][26][27][28][29]. The optical absorption and EPR spectra of V 3+ and Ti 2+ in tetrahedral crystals have been reported [21][22][23][24].…”

Section: Calculation and Analysismentioning

confidence: 98%

Optical and magnetic properties of transition-metal ions in tetrahedral and octahedral compounds

Wang

Kuang

2011

Sci. China Phys. Mech. Astron.

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This paper presents the complete energy matrix of the 3d 2 system containing the electron-electron interaction, the ligand-field interaction, the spin-orbit coupling interaction, and the Zeeman interaction, in which the optical spectra and g-factor of V 3+ and Ti 2+ ions in the series of tetrahedral A II B VI (A II =Zn, Cd, B VI =S, Se, Te) semiconductor materials are determined. In the investigation of the optical and magnetic properties of these transition-metal ions in the tetrahedral coordination complexes, we compared the data obtained from the transition-metal ions in the tetrahedral coordination complexes with those obtained from the corresponding ions in the octahedral ones, and found that the tetrahedral complexes have weaker crystal-field strength, inverse energy level ordering and stronger covalence effect.

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Electron paramagnetic resonance related to optical charge-transfer processes in ZnSe:Ti

Cited by 24 publications

References 19 publications

Vanadium centers in ZnTe crystals. I. Optical properties

Vanadium centers in ZnTe crystals. I. Optical properties

Large-Magnitude High-Spin Nuclear Parameters in a Ti3+Center from X-band EPR Measurements at 10 K

Optical and magnetic properties of transition-metal ions in tetrahedral and octahedral compounds

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