TY - JOUR
T1 - Percolation transition of persistent photoconductivity in II-VI mixed crystals
AU - Jiang, H. X.
AU - Lin, J. Y.
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
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.
UR - http://www.scopus.com/inward/record.url?scp=4243728294&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.64.2547
DO - 10.1103/PhysRevLett.64.2547
M3 - Article
AN - SCOPUS:4243728294
VL - 64
SP - 2547
EP - 2550
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 21
ER -