Shot noise in graphene.
نویسندگان
چکیده
We report measurements of current noise in single-layer and multilayer graphene devices. In four single-layer devices, including a p-n junction, the Fano factor remains constant to within +/-10% upon varying carrier type and density, and averages between 0.35 and 0.38. The Fano factor in a multilayer device is found to decrease from a maximal value of 0.33 at the charge-neutrality point to 0.25 at high carrier density. These results are compared to theories for shot noise in ballistic and disordered graphene.
منابع مشابه
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Rights: © 2013 American Physical Society (APS). This is the accepted version of the following article: Tan, Z. B. & Puska, A. & Nieminen, T. & Duerr, F. & Gould, C. & Molenkamp, L. W. & Trauzettel, B. & Hakonen, Pertti J. 2013. Shot noise in lithographically patterned graphene nanoribbons. Physical Review B. Volume 88, Issue 24. 245415/1-5. ISSN 1550-235X (electronic). ISSN 1098-0121 (printed)....
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عنوان ژورنال:
- Physical review letters
دوره 100 15 شماره
صفحات -
تاریخ انتشار 2008