Toward Magnetotransport in All-Oxide Magnetic Heterojunction: Implementation of Divide-Conquer Approach on Nonequilibrium Green$S Function Method( I )

Project Details


The recent epitaxial growth of single-crystal oxides enables the successful fabrication of variousmagnetic oxides for all-oxide magnetic heterojunctions. However, their magnetotransport propertiesare still very difficult to calculated by current simulation tools based on the density functional theory(DFT) with non-equilibrium Green’s function (NEGF) method, due to large system-size andcomplicated charge transfer at spinterfaces. In this study, we’ll develop a divide-and-conquer (DC)approach implementation within the DFT calculation combining with analytical NEGF derivation toinvestigate the magnetotransport property of all-oxide multi-layer heterojunctions in non-collinearmagnetic configuration, which may efficiently reduce the device Hamiltonian size and theself-consistent difficulty. The combination between computer programming, analytical derivation,first-principles calculation, and scientific analysis renders this proposal as a multi-discipline andhighly challenging work. We believe this newly developed DC-NEGF+DFT method may providebroad interests and even build mutual understanding between theoretical and experimental groups inall-oxide magnetic heterojunctions for spintronics applications.
Effective start/end date1/08/1731/07/18

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 11 - Sustainable Cities and Communities
  • SDG 12 - Responsible Consumption and Production
  • SDG 17 - Partnerships for the Goals


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