Percolation transition of persistent photoconductivity in II-VI mixed crystals

H. X. Jiang; J. Y. Lin

doi:10.1103/PhysRevLett.64.2547

Percolation transition of persistent photoconductivity in II-VI mixed crystals

H. X. Jiang, J. Y. Lin

Electrical and Computer Engineering

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

76 Scopus citations

Abstract

We have observed for the first time conductivity fluctuations in the persistent photoconductivity mode in II-VI mixed crystals with the magnitude following the percolation approach as -T-TC-, where TC is the percolation threshold temperature. Experimental results have demonstrated that the random local-potential fluctuations induced by compositional fluctuations are responsible for the persistent photoconductivity observed in II-VI mixed crystals. Different behaviors resulting from the DX centers, the macroscopic barrier, and the random local-potential fluctuations are distinguished.

Original language	English
Pages (from-to)	2547-2550
Number of pages	4
Journal	Physical Review Letters
Volume	64
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.64.2547
State	Published - 1990

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title = "Percolation transition of persistent photoconductivity in II-VI mixed crystals",

abstract = "We have observed for the first time conductivity fluctuations in the persistent photoconductivity mode in II-VI mixed crystals with the magnitude following the percolation approach as -T-TC-, where TC is the percolation threshold temperature. Experimental results have demonstrated that the random local-potential fluctuations induced by compositional fluctuations are responsible for the persistent photoconductivity observed in II-VI mixed crystals. Different behaviors resulting from the DX centers, the macroscopic barrier, and the random local-potential fluctuations are distinguished.",

author = "Jiang, {H. X.} and Lin, {J. Y.}",

year = "1990",

doi = "10.1103/PhysRevLett.64.2547",

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AU - Jiang, H. X.

AU - Lin, J. Y.

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N2 - We have observed for the first time conductivity fluctuations in the persistent photoconductivity mode in II-VI mixed crystals with the magnitude following the percolation approach as -T-TC-, where TC is the percolation threshold temperature. Experimental results have demonstrated that the random local-potential fluctuations induced by compositional fluctuations are responsible for the persistent photoconductivity observed in II-VI mixed crystals. Different behaviors resulting from the DX centers, the macroscopic barrier, and the random local-potential fluctuations are distinguished.

AB - We have observed for the first time conductivity fluctuations in the persistent photoconductivity mode in II-VI mixed crystals with the magnitude following the percolation approach as -T-TC-, where TC is the percolation threshold temperature. Experimental results have demonstrated that the random local-potential fluctuations induced by compositional fluctuations are responsible for the persistent photoconductivity observed in II-VI mixed crystals. Different behaviors resulting from the DX centers, the macroscopic barrier, and the random local-potential fluctuations are distinguished.

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DO - 10.1103/PhysRevLett.64.2547

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JO - Physical Review Letters

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