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PHYSICAL REVIEW B 83, 195117 (2011) Semiclassical Boltzmann transport theory for graphene multilayers
 

Summary: PHYSICAL REVIEW B 83, 195117 (2011)
Semiclassical Boltzmann transport theory for graphene multilayers
Hongki Min,1,2,*
Parakh Jain,1,3
S. Adam,1
and M. D. Stiles1
1
Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6202, USA
2
Maryland NanoCenter, University of Maryland, College Park, Maryland 20742, USA
3
Poolesville High School, 17501 West Willard Road, Poolesville, Maryland 20837, USA
(Received 28 December 2010; revised manuscript received 1 April 2011; published 11 May 2011)
We calculate the conductivity of arbitrarily stacked multilayer graphene sheets within a relaxation time
approximation, considering both short-range and long-range impurities. We theoretically investigate the feasibility
of identifying the stacking order of these multilayers using transport measurements. For relatively clean samples,
the conductivities of the various stacking configurations depend on the carrier density as a power law for over
two decades. This dependence arises from a low-density decomposition of the multilayer band structure into a
sum of chiral Hamiltonians. For dirty samples, the simple power-law relationship no longer holds. Nonetheless,
identification of the number of layers and stacking sequence is still possible by careful comparison of experimental

  

Source: Adam, Shaffique - Condensed Matter Theory Center, University of Maryland at College Park

 

Collections: Physics