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\ifmmode^\circ\else\textdegree\fi{}K. At 4.2\ifmmode^\circ\else\textdegree\fi{}K lines narrow sufficiently to measure parameters with the result $g=2.010$, $A=0.0055$ ${\mathrm{cm}}^{\ensuremath{-}1}$, and $3a=0.0084$ ${\mathrm{cm}}^{\ensuremath{-}1}$, where $3a$ is the zero-field splitting. The superhyperfine splitting is the same as for CdS with components spaced at 1.4 gauss giving ${A}_{\mathrm{Cd}}=2.6\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ ${\mathrm{cm}}^{\ensuremath{-}1}$. In CdS an interaction with conduction electrons is found which can broaden lines at 300\ifmmode^\circ\else\textdegree\fi{}K. At low temperatures an anomalous spectrum is found in CdS with $D=0.0295$ ${\mathrm{cm}}^{\ensuremath{-}1}$.