Frictional drag between graphene and LaAlO3/SrTiO3 heterostructures
ORAL
Abstract
Vertical stacking of heterostructures that combine layered materials offer new ways of combining interesting properties of dissimilar electronic materials. Over the past few years we have been integrating graphene with complex-oxide heterostructures, specifically, the LaAlO3/SrTiO3 system. Furthermore, conducting nanostructures can be written under graphene, producing interesting interactions between the two systems. Here we report Coulomb drag measurements between single-layer graphene and a conductive LaAlO3/SrTiO3 interface. Fabry-Perot oscillations are observed in both graphene and drag signal in graphene, which indicate the local doping in graphene by conductive atomic force microscope(c-AFM) lithography. While the drag resistance is greatly enhanced in SrTiO3 in the superconducting region, the drag in graphene remain unchanged. We also observed key differences between longitudinal drag and hall drag in both graphene and SrTiO3 .
–
Presenters
-
Qing Guo
Physics & Astronomy, University of Pittsburgh, Univ of Pittsburgh
Authors
-
Qing Guo
Physics & Astronomy, University of Pittsburgh, Univ of Pittsburgh
-
Jianan Li
Univ of Pittsburgh, Physics & Astronomy, University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh
-
Jen-Feng Hsu
Univ of Pittsburgh
-
Hyungwoo Lee
University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin - Madison, Materials Science and Engineering, University of Wisconsin-Madison, Department of Materials Science and Engineering, University of Wisconsin at Madison
-
Chang-Beom Eom
Univ of Wisconsin-Madison, Materials Science and Engineering, University of Wisconsin-Madison, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin-Madison, Materials Science & Engineering, University of Wisconsin-Madison, University of Wisconsin - Madison, Department of Materials Science and Engineering, University of Wisconsin - Madison, Department of Materials Science and Engineering, University of Wisconsin at Madison
-
Patrick Irvin
Univ of Pittsburgh, Physics & Astronomy, University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh
-
Brian R D'Urso
Physics, Montana State University
-
Jeremy Levy
Univ of Pittsburgh, Physics & Astronomy, University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh