Thermally stimulated luminescence of YBa2Cu3O7 high-Tc superconductors

M. Roth; A. Halperin; S. Katz

doi:10.1016/0038-1098(88)90942-8

Thermally stimulated luminescence of YBa₂Cu₃O₇ high-T_c superconductors

M. Roth^*, A. Halperin, S. Katz

^*Corresponding author for this work

The Institute of Applied Physics

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Thermally stimulated luminescence (TSL) and x-ray luminescence of nominally undoped YBa₂Cu₃O₇ ceramics x-irradiated at low temperatures (20K) has been observed and reported for the first time. High purity YBa₂Cu₃O₇ exhibit two TSL glow-peaks, at 90 and 195K, with activation energies of 0.16 and 0.42 eV respectively. The TSL spectra contain a single emission band peaking at 3.65 eV. An additional, even more intense band, with a maximum at 2.8 eV is found in the low-temperature x-ray luminescence spectrum. The results are compared with existing data on the homologous GdBa₂Cu₃O₇ compound and a number of simple oxides. It is suggested that the defects involved in the x-ray-induced luminescence are intrinsic in nature, possibly related to oxygen vacancies.

Original language	English
Pages (from-to)	105-108
Number of pages	4
Journal	Solid State Communications
Volume	67
Issue number	2
DOIs	https://doi.org/10.1016/0038-1098(88)90942-8
State	Published - Jul 1988

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title = "Thermally stimulated luminescence of YBa2Cu3O7 high-Tc superconductors",

abstract = "Thermally stimulated luminescence (TSL) and x-ray luminescence of nominally undoped YBa2Cu3O7 ceramics x-irradiated at low temperatures (20K) has been observed and reported for the first time. High purity YBa2Cu3O7 exhibit two TSL glow-peaks, at 90 and 195K, with activation energies of 0.16 and 0.42 eV respectively. The TSL spectra contain a single emission band peaking at 3.65 eV. An additional, even more intense band, with a maximum at 2.8 eV is found in the low-temperature x-ray luminescence spectrum. The results are compared with existing data on the homologous GdBa2Cu3O7 compound and a number of simple oxides. It is suggested that the defects involved in the x-ray-induced luminescence are intrinsic in nature, possibly related to oxygen vacancies.",

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T1 - Thermally stimulated luminescence of YBa2Cu3O7 high-Tc superconductors

AU - Roth, M.

AU - Halperin, A.

AU - Katz, S.

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N2 - Thermally stimulated luminescence (TSL) and x-ray luminescence of nominally undoped YBa2Cu3O7 ceramics x-irradiated at low temperatures (20K) has been observed and reported for the first time. High purity YBa2Cu3O7 exhibit two TSL glow-peaks, at 90 and 195K, with activation energies of 0.16 and 0.42 eV respectively. The TSL spectra contain a single emission band peaking at 3.65 eV. An additional, even more intense band, with a maximum at 2.8 eV is found in the low-temperature x-ray luminescence spectrum. The results are compared with existing data on the homologous GdBa2Cu3O7 compound and a number of simple oxides. It is suggested that the defects involved in the x-ray-induced luminescence are intrinsic in nature, possibly related to oxygen vacancies.

AB - Thermally stimulated luminescence (TSL) and x-ray luminescence of nominally undoped YBa2Cu3O7 ceramics x-irradiated at low temperatures (20K) has been observed and reported for the first time. High purity YBa2Cu3O7 exhibit two TSL glow-peaks, at 90 and 195K, with activation energies of 0.16 and 0.42 eV respectively. The TSL spectra contain a single emission band peaking at 3.65 eV. An additional, even more intense band, with a maximum at 2.8 eV is found in the low-temperature x-ray luminescence spectrum. The results are compared with existing data on the homologous GdBa2Cu3O7 compound and a number of simple oxides. It is suggested that the defects involved in the x-ray-induced luminescence are intrinsic in nature, possibly related to oxygen vacancies.

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Thermally stimulated luminescence of YBa₂Cu₃O₇ high-T_c superconductors

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