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A mechanism of the spin-lattice relaxation of the conduction electrons in InSb is presented. The effective spin-reversal Hamiltonian is originated from the interference effect between the spin-reversal interaction proposed by Pavlov and Firsov and the electron-phonon interaction. These two interactions are connected with the longitudinal polarization wave. Temperature dependent part δ H ( T ) of the ESR line width for the sample of high electron concentration N >5×10 14 /cm 3 , is related to the spin-lattice relaxation time T 1 by \(δ H{=}/gμBT₁\). Here δ H ( T )= Δ H ( T )- Δ H (0) and Δ H ( T ) denotes the line width at temperature T . Origin of Δ H (0) is not clear yet. Calculated relaxation rate can provide a qualitative explanation of the observed values by Gershenzon et al. .
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Kō Sugihara (1970) studied this question.
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