Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Physics
Valley-Dependent Lorentz Force And Aharonov-Bohm Phase In Strained Graphene P-N Junction, Sanjay Prabhakar, Rabindra Nepal, Roderick Melnik, Alexey Kovalev
Valley-Dependent Lorentz Force And Aharonov-Bohm Phase In Strained Graphene P-N Junction, Sanjay Prabhakar, Rabindra Nepal, Roderick Melnik, Alexey Kovalev
Department of Physics and Astronomy: Faculty Publications
Veselago lens focusing in graphene p−n junction is promising for realizations of new generation electron optics devices. However, the effect of the strain-induced Aharonov-Bohm interference in a p−n junction has not been discussed before. We provide an experimentally feasible setup based on the Veselago lens in which the presence of strain can result in both the valley-dependent Lorentz force and Aharonov-Bohm interference. In particular, by employing the Green's function and tight-binding methods, we study the strain induced by dislocations and line defects in a p−n junction and show how the resulting Aharonov-Bohm phase and interference can be detected. Furthermore, for …
Systems And Methods For Scalable Perovskite Device Fabrication, Jinsong Huang, Qingfeng Dong, Yuchuan Shao
Systems And Methods For Scalable Perovskite Device Fabrication, Jinsong Huang, Qingfeng Dong, Yuchuan Shao
Department of Physics and Astronomy: Faculty Publications
Continuous processes for fabricating a perovskite device are described that include forming a perovskite layer or film on a substrate using a linear deposition device , and optionally using a conductive tape lamination process to form an anode or a cathode layer on the perovskite device .
Magnetoelectric Control Of Topological Phases In Graphene, Hiroyuki Takenaka, Shane Sandhoefner, Alexey Kovalev, Evgeny Tsymbal
Magnetoelectric Control Of Topological Phases In Graphene, Hiroyuki Takenaka, Shane Sandhoefner, Alexey Kovalev, Evgeny Tsymbal
Department of Physics and Astronomy: Faculty Publications
Topological antiferromagnetic (AFM) spintronics is an emerging field of research, which involves the topological electronic states coupled to the AFM order parameter known as the Néel vector. The control of these states is envisioned through manipulation of the Néel vector by spin-orbit torques driven by electric currents. Here we propose a different approach favorable for low-power AFM spintronics, where the control of the topological states in a two-dimensional material, such as graphene, is performed via the proximity effect by the voltage induced switching of the Néel vector in an adjacent magnetoelectric AFM insulator, such as chromia. Mediated by the symmetry …