Electric field effect in atomically thin carbon films

被引：56734
|
作者：
Novoselov, KS
Geim, AK [1 ]
Morozov, SV
Jiang, D
Zhang, Y
Dubonos, SV
Grigorieva, IV
Firsov, AA
机构：
[1] Univ Manchester, Dept Phys, Manchester M13 9PL, Lancs, England
[2] Russian Acad Sci, Inst Microelect Technol, Chernogolovka 142432, Russia
来源：
SCIENCE | 2004年 / 306卷 / 5696期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1126/science.1102896
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We describe monocrystalline graphitic films, which are a few atoms thick but are nonetheless stable under ambient conditions, metallic, and of remarkably high quality. The films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands, and they exhibit a strong ambipolar electric field effect such that electrons and holes in concentrations up to 10(13) per square centimeter and with room-temperature mobilities of similar to10,000 square centimeters per volt-second can be induced by applying gate voltage.
引用
收藏
页码：666 / 669
页数：4
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