Conductance of disordered strain-induced graphene superlattices

• Published in: Physica. E, Low-dimensional systems & nanostructures Vol. 50; pp. 57 - 60
• Main Authors: Esmailpour, Ayoub, Meshkin, Hamed, Saadat, Mahdi
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.05.2013; Elsevier
• Subjects: Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Fullerenes and related materials; diamonds, graphite; Materials science; Physics; Specific materials; Stress effects; Fluctuations; Strained superlattice; Graphene
• ISSN: 1386-9477; 1873-1759
• DOI: 10.1016/j.physe.2013.02.014

We study the transmission and conductance of massless Dirac fermions through the strain-induced graphene superlattices (SGSLs). In this paper, the effect of strain fluctuations on the conductance of SGSLs is studied. We showed that the conductance of the SGSLs decreases with increasing the strength of strain fluctuations. Also, we study both the effects of negative and positive strains in presence of disorder. It is shown that, in the same condition, the conductance of a negative strain-induced superlattice is more than a superlattice with positive strain. ► The transmission and conductance of strained graphene superlattices are studied. ► The white noise disorder causes that a number of peaks in transmission wash out. ► The transmission of the system depends on the strength of strain. ► The conductance of the system decreases with increasing of strain fluctuations. ► The conductance of a negative strained superlattice is more than a positive one.