Direct Optical Observation of the Semiconductor-to-Metal Transition in SmS under Pressure
- 15 October 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 6 (8) , 3023-3026
- https://doi.org/10.1103/physrevb.6.3023
Abstract
A discontinuous change in the reflectivity due to the first-order semiconductor-to-metal transition has been observed in SmS at a pressure of about 6 kbar. The metallic state is characterized by a golden yellow luster which arises because of interband transitions superimposed on the Drude reflectivity. These results and the pressure dependence of the optical-absorption edge in semiconducting SmSe and SmTe are in excellent agreement with earlier resistivity measurements.Keywords
This publication has 9 references indexed in Scilit:
- Pressure induced electronic and NaCl to CsCl type transitions in some rare earth monotelluridesSolid State Communications, 1971
- NonmagneticShell in the High-Pressure Phase of SmSPhysical Review Letters, 1971
- Energy-Dependent Photoemission Intensities of "" States in EuS, GdS, and USPhysical Review Letters, 1971
- Magnetism, Metal-Insulator Transition, and Optical Properties in Sm- and Some Other Divalent Rare-Earth MonochalcogenidesJournal of Applied Physics, 1971
- Continuous and Discontinuous Semiconductor-Metal Transition in Samarium Monochalcogenides Under PressurePhysical Review Letters, 1970
- Pressure-Induced Metal-Semiconductor Transition andElectron Delocalization in Sm TePhysical Review Letters, 1970
- Spin-Polarized Energy Bands in Eu Chalcogenides by the Augmented-Plane-Wave MethodPhysical Review B, 1970
- Optical Properties of the Europium ChalcogenidesIBM Journal of Research and Development, 1970
- Optical Properties of Ag and CuPhysical Review B, 1962