Title of article :
Modeling the thermopower of ballistic graphene ribbons
Author/Authors :
T.S. Kosmas and P.C. Divari، نويسنده , , G.S. Kliros، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2009
Pages :
5
From page :
2431
To page :
2435
Abstract :
We investigate the thermopower of ballistic graphene ribbons using linear response theory and the Landauer formalism. The dependence of thermopower on temperature and chemical potential is investigated and the obtained results are qualitatively in agreement with many features recently observed in thermoelectric measurements on high mobility graphene ribbons. Fabry–Perot oscillations in the thermopower of short nannoribbons as a function of chemical potential, at finite temperatures, are revealed. The validity of generalized Mottʹs relation between thermopower and temperature dependent conductivity, is investigated in a wide range of temperatures.
Keywords :
Graphene nanoribbons , Ballistic graphene , Mottיs relation , Landauer formalism , Thermopower
Journal title :
Physica E Low-dimensional Systems and Nanostructures
Serial Year :
2009
Journal title :
Physica E Low-dimensional Systems and Nanostructures
Record number :
1048362
Link To Document :
بازگشت