Physical Review B - Condensed Matter and Materials Physics
Citation:
Volume: 53 Issue: 23 Page : 15409-15412
Abstract:
Experimental and theoretical results from studies of electron effective masses in 4H SiC are
presented. Three principal values of the mass tensor are experimentally resolved by optical detection of
cyclotron resonance, and are determined as m(ML)=0.33?0.01m0, m(M??)=0.58?0.01m0, and
m(MK)=0.31?0.01m0. These values are in good agreement with m(ML)=0.31m0, m(M??)=0.57m0, and
m(MK)=0.28m0, obtained from band-structure calculations based on the local density approximation to the
density-functional theory using the linearized augmented plane-wave method. The conduction-band
minimum is found to be at the M point of the Brillouin zone.
