Accession Number : AD0288222

Title :   ELECTRIC POLARIZATION OF CDS SINGLE CRYSTALS AND PHOTOMAGNETOELECTRIC EFFECTS

Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB N Y

Personal Author(s) : LUYCKX,A.

Report Date : 03 OCT 1962

Pagination or Media Count : 1

Abstract : The resistivity of single crystals of CdS varies for same conditions of illumination when a magnetic field is imposed. Sometimes this resistivity decreases or increases following the sign of the magnetic field; in other conditions there is increase of resistivity whatever the sign of magnetic field. There are also cases for which magnetic field has no influence on the resistivity. An explanation of these effects is proposed. It is based on the work hypothesis of local electrical polarization of the crystals. Potential measurements were made which confirmed this idea. In some experimental conditions these photovoltages depend on the action of a magnetic field. Quantitative results were obtained for definite conditions which confirm the assumptions. Hysteresis diagrams of photovoltages were plotted. When the infrared radiations which are known to quench photoconductivity are removed, the photomagnetoelectric effects become independent of the sign of the magnetic field and of the current. (Author)

Descriptors :   *POLARIZATION, *SINGLE CRYSTALS, CADMIUM COMPOUNDS, FERROMAGNETISM, MAGNETIC PROPERTIES, RESISTANCE (ELECTRICAL)

Distribution Statement : APPROVED FOR PUBLIC RELEASE