Quantum confinement and coherence in a two-dimensional electron gas in a carbon-face 3C-SiC/6H-SiC polytype heterostructure

Lu, Jie; Chandrashekhar, M. V. S.; Parks, J. J.; Ralph, D. C.; Spencer, Michael G.
April 2009
Applied Physics Letters;4/20/2009, Vol. 94 Issue 16, p162115
Academic Journal
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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