Abstract
We report the observation of the quantum coherence in a two-dimensional electron gas (2DEG) at a C-face 3C-/6H-SiC polytype heterostructure. Electronic confinement and coherence were observed at 1.5 K and high magnetic fields, indicating the presence and confinement of a 2DEG. The measured mobility of the 2DEG is 2000 cm2/V s and the electron sheet density is 2.7×1012/cm2.
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