Paramagnetic Resonance of CdTe: Mn and CdS: Mn

Abstract

Paramagnetic resonance absorbtion experiments have been carried out on CdTe and CdS crystals containing manganese. In CdTe, the lines are found to be very broad at 300°K. At 4.2°K lines narrow sufficiently to measure parameters with the result $g=2.010\mathrm{}$, $A=0.0055\mathrm{}$ ${\mathrm{cm}}^{-1\mathrm{}}$, and $3a=0.0084$ ${\mathrm{cm}}^{-1\mathrm{}}$, where $3a$ is the zero-field splitting. The superhyperfine splitting is the same as for CdS with components spaced at 1.4 gauss giving $A_{\mathrm{Cd}}=2.6\mathrm{}\times {10}^{-4\mathrm{}}$ ${\mathrm{cm}}^{-1\mathrm{}}$. In CdS an interaction with conduction electrons is found which can broaden lines at 300°K. At low temperatures an anomalous spectrum is found in CdS with $D=0.0295\mathrm{}$ ${\mathrm{cm}}^{-1\mathrm{}}$.