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Magneto-Optical Properties Of Complex Oxides, Peng Chen
Magneto-Optical Properties Of Complex Oxides, Peng Chen
Doctoral Dissertations
Complex oxides give rise to rich physics and exotic cross-coupled electronic and magnetic properties. This is because of the competing interaction between charge, structure, and magnetism in the materials. In this dissertation I present a spectroscopic investigation of several model complex oxides under external stimuli of magnetic field and temperature. The compounds of interest include BiFeO3 [bismuth ferrite] nanoparticles and tetragonal film, Bi1-xNdxFeO3 [neodymium doped bismuth ferrite], α-Fe2O3 [hematite], Ni3V2O8 [nickel vanadate], and RIn1-xMnxO3 [manganese doped rare earth indium oxide]. …
Anomalous And Spin Hall Effects In A Magnetic Tunnel Junction With Rashba Spin-Orbit Coupling, A. V. Vedyayev, M. S. Titova, N. V. Ryzhanova, M. Ye. Zhuravlev, Evgeny Y. Tsymbal
Anomalous And Spin Hall Effects In A Magnetic Tunnel Junction With Rashba Spin-Orbit Coupling, A. V. Vedyayev, M. S. Titova, N. V. Ryzhanova, M. Ye. Zhuravlev, Evgeny Y. Tsymbal
Evgeny Tsymbal Publications
Anomalous and spin Hall effects are investigated theoretically for a magnetic tunnel junction where the applied voltage produces a Rashba spin-orbit coupling within the tunneling barrier layer. The ferromagnetic electrodes are the source of the spin-polarized current. The tunneling electrons experience a spin-orbit coupling inside the barrier due to the applied electrical field. Charge and spin Hall currents are calculated as functions of the position inside the barrier and the angle between the magnetizations of the electrodes. We find that both charge and spin Hall currents are located inside the barrier near the interfaces. The dependence of the currents on …