Far-Infrared Observation of Electric-Dipole-Excited Electron-Spin Resonance inHg1−xCdxTe

Electric-dipole-excited conduction-electron spin resonance has been observed for the first time in the far infrared in the II-VI semiconductor ${\mathrm{Hg}}_{1-x}{\mathrm{Cd}}_x\mathrm{Te}$. Circular polarization and intensity studies as a function of magnetic field unambiguously identify this transition. Electron $g$ values are obtained for the $L=0\mathrm{}$ Landau level at several magnetic fields.