Resonance absorption of radio waves (with a frequency of 10 MHz) by c-band electrons in indium antimonide crystals doped with hydrogen-like donors (tellurium atoms) at room temperature in an external magnetic field is theoretically studied. Known experimental data obtained for samples with electron concentrations in the range from 6∙10¹⁵ to 5∙10¹⁸ cm^–3 are analyzed and interpreted. Resonant absorption of radio waves by n-InSb:Te crystals in a magnetic field is calculated to be due to spin-phonon resonance based on the law of conservation of energy and the quasi-wave vector for electrons and optical phonons. The resonance arises as a result of a spin-flip interaction of a c-band electron with an optical phonon, which is assisted by resonant absorption of radio waves in a magnetic field. A physical picture of the phenomenon is given. Analytical relations are presented. Calculations are carried out and are consistent with experimental data that could not previously be interpreted at all.

从理论上研究了在室温下在外部磁场中，掺有氢样供体（碲原子）的锑化铟晶体中的c带电子对无线电波（频率为10 MHz）的共振吸收。电子浓度范围为6∙10 ¹⁵至5∙10 ¹⁸ cm ^–3的样品获得的已知实验数据被分析和解释。根据能量守恒定律以及电子和光子的准波矢量，计算出n-InSb：Te晶体在磁场中对无线电波的共振吸收是由于自旋声子共振。共振是由于c波段电子与光子的自旋翻转相互作用而产生的，而共振是通过磁场中无线电波的共振吸收而实现的。给出了现象的物理图像。提出了分析关系。计算已进行，并且与以前根本无法解释的实验数据一致。