Abstract

An experiment of the cyclotron resonance of photoelectrons in pure AgCl crystals was performed at 6–30 K using the standard spectrometer at 35 GHz. Effective cooling of the electron temperature can be realized through heating of the lattice temperature to 22 K because of the change of electron distributions. A possible explanation is due to a process via shallow trapping states which can be assigned to D − states in this material. Newly observed resonance phenomena of electrons give a more reliable value of the effective mass of m ∗ = (0.41 ± 0.01)m e near the bottom of the polaron band in AgCl.

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