Effect of a magnetic field on the luminescent lifetime of Cu+ in alkali halide host crystals

Stephen A. Payne; Robert Hamilton Austin; Donald S. McClure

doi:10.1103/PhysRevB.29.32

Effect of a magnetic field on the luminescent lifetime of Cu+ in alkali halide host crystals

Stephen A. Payne, Robert Hamilton Austin, Donald S. McClure

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Abstract

We have measured the change in the triplet emission lifetime of the Cu+ impurity in various alkali halide hosts at 4.2 K as a function of applied magnetic field. Pedrini [Phys. Status Solidi B 87, 273 (1978)] has proposed that the Eg3 emitting state is split into T1g and T2g spin-orbit components and has found that the emission lifetime depends sensitively on the splitting. We have utilized an external magnetic field to mix these spin-orbit levels. This produced a measurable decrease in the emission lifetime which we explained with Pedrini's model. We also diagonalized the d9s excited-state matrix to calculate independently the T1g,T2g spin-orbit splitting and obtained reasonable agreement with our experimental results.

Original language	English (US)
Pages (from-to)	32-36
Number of pages	5
Journal	Physical Review B
Volume	29
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.29.32
State	Published - Jan 1 1984

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.29.32

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abstract = "We have measured the change in the triplet emission lifetime of the Cu+ impurity in various alkali halide hosts at 4.2 K as a function of applied magnetic field. Pedrini [Phys. Status Solidi B 87, 273 (1978)] has proposed that the Eg3 emitting state is split into T1g and T2g spin-orbit components and has found that the emission lifetime depends sensitively on the splitting. We have utilized an external magnetic field to mix these spin-orbit levels. This produced a measurable decrease in the emission lifetime which we explained with Pedrini's model. We also diagonalized the d9s excited-state matrix to calculate independently the T1g,T2g spin-orbit splitting and obtained reasonable agreement with our experimental results.",

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AU - Payne, Stephen A.

AU - Austin, Robert Hamilton

AU - McClure, Donald S.

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N2 - We have measured the change in the triplet emission lifetime of the Cu+ impurity in various alkali halide hosts at 4.2 K as a function of applied magnetic field. Pedrini [Phys. Status Solidi B 87, 273 (1978)] has proposed that the Eg3 emitting state is split into T1g and T2g spin-orbit components and has found that the emission lifetime depends sensitively on the splitting. We have utilized an external magnetic field to mix these spin-orbit levels. This produced a measurable decrease in the emission lifetime which we explained with Pedrini's model. We also diagonalized the d9s excited-state matrix to calculate independently the T1g,T2g spin-orbit splitting and obtained reasonable agreement with our experimental results.

AB - We have measured the change in the triplet emission lifetime of the Cu+ impurity in various alkali halide hosts at 4.2 K as a function of applied magnetic field. Pedrini [Phys. Status Solidi B 87, 273 (1978)] has proposed that the Eg3 emitting state is split into T1g and T2g spin-orbit components and has found that the emission lifetime depends sensitively on the splitting. We have utilized an external magnetic field to mix these spin-orbit levels. This produced a measurable decrease in the emission lifetime which we explained with Pedrini's model. We also diagonalized the d9s excited-state matrix to calculate independently the T1g,T2g spin-orbit splitting and obtained reasonable agreement with our experimental results.

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Effect of a magnetic field on the luminescent lifetime of Cu+ in alkali halide host crystals

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