The growth and electrical properties of single crystal Cd3As2 platelets
@article{Lovett1972TheGA, title={The growth and electrical properties of single crystal Cd3As2 platelets}, author={D. R. Lovett}, journal={Journal of Materials Science}, year={1972}, volume={7}, pages={388-392} }
Single crystal platelets of Cd3As2 having carrier concentrations less than 1024 m−3 have been grown from the vapour in the presence of argon gas and excess cadmium vapour. It is shown that the resistivity and Hall data is consistent with a band model in which there is a direct band-gap atk=0 of approximately 0.38 eV and an indirect zero band-gap. It is suggested that the large electron carrier concentrations usually present in Cd3As2 result from anti-structure disorder.
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References
SHOWING 1-10 OF 17 REFERENCES
A thermal radiation detector employing the Nernst effect in Cd3As2-NiAs
- Physics
- 1971
The material parameters that are important in the detection of thermal radiation by means of the Nernst effect are first considered. Then a simple treatment of the thermomagnetic properties of an…
Anomalous Thermal Conductivity of Cd3As2 and the Cd3As2−Zn3As2 Alloys
- Materials Science
- 1966
The room‐temperature lattice thermal conductivity of Zn3As2 is 0.012 W/cm·°C; that of Cd3As2 is 0.014 W/cm·°C or less. Anomalously low thermal conductivities (as much as 30% below calculated values)…
The Cd3As2-NiAs pseudobinary eutectic
- Materials Science
- 1969
Criteria to be followed in predicting new eutectic systems of particular types are discussed briefly, and demonstrated in the discovery of the Cd3As2-NiAs eutectic. The eutectic region of the…
Thermomagnetic effects in cadmium arsenide
- Physics
- 1968
Adiabatic and isothermal thermomagnetic coefficients have been obtained for cadmium arsenide in the temperature range 65-300°K. By assuming acoustic scattering and a single parabolic conduction band…
Electronegativities of the Elements
- Physics
- 1956
Electronegativity values derived from various methods are compared, and a complete electronegativity scale is arranged for all the elements. A chart is given which shows a systematic relation of…