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FIZIKA A 13 (2004) 2 , 65-76
 
TEMPORAL BEHAVIOUR OF TRAPPED CENTRES IN KCl:KBr CRYSTALS DURING SECOND
ZONE COLOURATION
SATYAJIT KAR, AJAY KUMAR MAITI, SWARUPA BANDYOPADHYAY, KAMAL KANTI RAY,
ANJAN KUMAR LAHIRI and KUSHALENDU GOSWAMI
Department of Physics, Jadavpur University, Kolkata -
700 032, India
Received 1 July 2002; revised manuscript received 29 December
2003
Accepted 18 October 2004
Online 2 February 2005
Electron injection was carried out in single crystals of KCl doped with KBr under
constant temperature for different fields. The injection current and optical density were
measured as functions of time. The process was stopped arbitrarily. An analytical theory
has been worked out and the growth coefficient (k) has been
found to behave in an anomalous way in describing the detrapping process.
PACS numbers: 78.50.Ec, 72.90.+y
UDC 538.935
Keywords: electron injection, ionic solid, growth coefficient
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