Source:http://linkedlifedata.com/resource/pubmed/id/16907266
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
24
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| pubmed:dateCreated |
2006-8-15
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| pubmed:abstractText |
We calculate the mode-dependent transmission probability of massless Dirac fermions through an ideal strip of graphene (length L, width W, no impurities or defects) to obtain the conductance and shot noise as a function of Fermi energy. We find that the minimum conductivity of order e2/h at the Dirac point (when the electron and hole excitations are degenerate) is associated with a maximum of the Fano factor (the ratio of noise power and mean current). For short and wide graphene strips the Fano factor at the Dirac point equals 1/3, 3 times smaller than for a Poisson process. This is the same value as for a disordered metal, which is remarkable since the classical dynamics of the Dirac fermions is ballistic.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Jun
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| pubmed:issn |
0031-9007
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:day |
23
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| pubmed:volume |
96
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
246802
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| pubmed:year |
2006
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| pubmed:articleTitle |
Sub-Poissonian shot noise in graphene.
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| pubmed:affiliation |
Institute of Theoretical Physics, Warsaw University, Hoza 69, 00-681 Warsaw, Poland.
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| pubmed:publicationType |
Journal Article
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