Interference resonance in two-phonon processes of de-excitation of the acceptors in tellurium
Gantmakher V. F., Levinson I. B.
If the energy spectrum of a shallow impurity in the semiconductor has a large energy gap in which there is an additional level, the two-phonon de-excitation will exhibit a resonance when this level reaches the midpoint of the energy gap. This behavior probably accounts for the magnetic-impurity resonance in tellurium observed by Von Klitzing3 [Solid State Electr. 21, 223 (1978) ].