{ "id": "2010.09192", "version": "v1", "published": "2020-10-19T03:33:59.000Z", "updated": "2020-10-19T03:33:59.000Z", "title": "Theory of the Strain Engineering of Graphene Nanoconstrictions", "authors": [ "Masahiko Hayashi", "Hideo Yoshioka", "Hikari Tomori", "Akinobu Kanda" ], "comment": "4 pages, 3 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "Strain engineering is one of the key technologies for using graphene as an electronic device: the strain-induced pseudo-gauge field reflects Dirac electrons, thus opening the so-called conduction gap. Since strain accumulates in constrictions, graphene nanoconstrictions can be a good platform for this technology. On the other hand, in the graphene nanoconstrictions, Fabry-Perot type quantum interference dominates the electrical conduction at low bias voltages. We argue that these two effects have different strain dependence; the pseudo-gauge field contribution is symmetric with respect to positive (tensile) and negative (compressive) strain, whereas the quantum interference is antisymmetric. As a result, a peculiar strain dependence of the conductance appears even at room temperatures.", "revisions": [ { "version": "v1", "updated": "2020-10-19T03:33:59.000Z" } ], "analyses": { "keywords": [ "graphene nanoconstrictions", "strain engineering", "pseudo-gauge field reflects dirac electrons", "fabry-perot type quantum interference dominates", "strain dependence" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }