Tunnelling between excited 4T2 and 2E states of Cr3+ ions with small energy separation-the case of GSGG

M Yamaga, B Henderson, K P O'Donnell

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

A model of 2E to 4T2 tunnelling induced by zero-point vibrations is developed to account for the observed temperature dependence in the photoluminescence spectrum of Cr3+ ions in crystals with small energy separation Delta E=E(2E)-E(4T 2). The model gives good agreement with experimental results for Cr3+ -doped Gd3Sc2Ga3O12, where Delta E=70 cm-1 is smaller than the mean phonon energy h(cross) omega approximately=180 cm-1.

LanguageEnglish
Pages9175-9182
Number of pages8
JournalJournal of Physics: Condensed Matter
Volume1
Issue number46
DOIs
Publication statusPublished - 20 Nov 1989

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Ions
Photoluminescence
ions
photoluminescence
vibration
temperature dependence
Crystals
energy
crystals
Temperature

Keywords

  • photoluminescence
  • crystals
  • small energy separation

Cite this

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abstract = "A model of 2E to 4T2 tunnelling induced by zero-point vibrations is developed to account for the observed temperature dependence in the photoluminescence spectrum of Cr3+ ions in crystals with small energy separation Delta E=E(2E)-E(4T 2). The model gives good agreement with experimental results for Cr3+ -doped Gd3Sc2Ga3O12, where Delta E=70 cm-1 is smaller than the mean phonon energy h(cross) omega approximately=180 cm-1.",
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Tunnelling between excited 4T2 and 2E states of Cr3+ ions with small energy separation-the case of GSGG. / Yamaga, M; Henderson, B; O'Donnell, K P.

In: Journal of Physics: Condensed Matter , Vol. 1, No. 46, 20.11.1989, p. 9175-9182.

Research output: Contribution to journalArticle

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T1 - Tunnelling between excited 4T2 and 2E states of Cr3+ ions with small energy separation-the case of GSGG

AU - Yamaga, M

AU - Henderson, B

AU - O'Donnell, K P

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N2 - A model of 2E to 4T2 tunnelling induced by zero-point vibrations is developed to account for the observed temperature dependence in the photoluminescence spectrum of Cr3+ ions in crystals with small energy separation Delta E=E(2E)-E(4T 2). The model gives good agreement with experimental results for Cr3+ -doped Gd3Sc2Ga3O12, where Delta E=70 cm-1 is smaller than the mean phonon energy h(cross) omega approximately=180 cm-1.

AB - A model of 2E to 4T2 tunnelling induced by zero-point vibrations is developed to account for the observed temperature dependence in the photoluminescence spectrum of Cr3+ ions in crystals with small energy separation Delta E=E(2E)-E(4T 2). The model gives good agreement with experimental results for Cr3+ -doped Gd3Sc2Ga3O12, where Delta E=70 cm-1 is smaller than the mean phonon energy h(cross) omega approximately=180 cm-1.

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KW - crystals

KW - small energy separation

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