Temperature-dependent transport in suspended graphene.
نویسندگان
چکیده
The resistivity of ultraclean suspended graphene is strongly temperature (T) dependent for 50.5 x 10(11) cm(-2), the resistivity increases with increasing T and is linear above 50 K, suggesting carrier scattering from acoustic phonons. At T=240 K the mobility is approximately 120,000 cm2/V s, higher than in any known semiconductor. At the charge neutral point we observe a nonuniversal conductivity that decreases with decreasing T, consistent with a density inhomogeneity <10(8) cm(-2).
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ورودعنوان ژورنال:
- Physical review letters
دوره 101 9 شماره
صفحات -
تاریخ انتشار 2008