Nonequilibrium properties of charge carriers in cadmium iodide crystals
Detection and measurement of the photomagnetic effect (PME) in layered crystals of cadmium iodide are discussed. The basic behavior of the PME at room temperature, as well as its dependence on wavelength and intensity of illumination, the magnetic field, and the photoconductivity, are presented. These dependencies were obtained to calculate the diffusion length, bipolar diffusion coefficient, the surface recombination velocity, and the lifetime. The intrinsic behavior of the odd-function PME in highly conducting cadmium iodide crystals at room temperature and fields up to 6.8 /times/ 10/sup 5/ A/m may be qualitatively explained in the context of the theory developed for the case of thick specimens in a weak magnetic field and high injection level. The observed odd-function PME and photoconductivity have yielded, for the first time, values for the parameters associated with nonequilibrium carriers in highly conducting cadmium iodide crystals.
- Research Organization:
- I.A. Franko L'vov State Univ. (USSR)
- OSTI ID:
- 6091854
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Vol. 23:10; Other Information: Translated from Izv. Akad. Nauk SSSR, Neorg. Mater.; 23, No. 10, 1710-1712 (Oct 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CADMIUM IODIDES
PHOTOCONDUCTIVITY
ELECTRONS
EQUILIBRIUM
HOLES
CHARGE CARRIERS
DIFFUSION LENGTH
ELECTROMOTIVE FORCE
ELECTRON MOBILITY
HOLE MOBILITY
LIFETIME
MAGNETIC FIELDS
MAGNETIC SUSCEPTIBILITY
PHOTOCONDUCTORS
RECOMBINATION
STOCKBARGER METHOD
TRAPPING
VISIBLE RADIATION
ZONE MELTING
CADMIUM COMPOUNDS
CADMIUM HALIDES
CRYSTAL GROWTH METHODS
DIMENSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
HALIDES
HALOGEN COMPOUNDS
IODIDES
IODINE COMPOUNDS
LENGTH
LEPTONS
MAGNETIC PROPERTIES
MELTING
MOBILITY
PARTICLE MOBILITY
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RADIATIONS
360603* - Materials- Properties
360602 - Other Materials- Structure & Phase Studies