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Synthesis and Investigation of High Quality Materials for Spintronics Applications

Gallagher, James C
http://rave.ohiolink.edu/etdc/view?acc_num=osu1469141590

Abstract Details

2016, Doctor of Philosophy, Ohio State University, Physics.
Since 1997, spintronics has had applications in magnetic memory storage. Future spintronics technologies may continue to reduce the cost and increase the performance of logic operations. This could be achieved by replacing charge currents with lower energy spin currents and discovering novel phases of matter brought by spin-orbit coupling and spin-spin interactions such as topological insulators, Weyl semi metals, and skyrmion particles. The theory behind these effects is well understood and materials with these properties have been discovered; however, more research is needed to determine the best material for these applications. This dissertation covers the synthesis and spintronic properties of three different materials proposed for such applications. First, pyrochlore iridate thin films are predicted to be topological insulators or Weyl semimetals which may serve as a graphene analog enabling electronic and spin transport at relativistic velocities. Second, yttrium iron garnet (Y3Fe5O12 - YIG) has been proven to be an excellent material for generating spin currents with the objective to optimize heterostructure composition for spin current generation and transport. Third, B20 phase FeGe is a candidate for memory storage using skyrmion spin structures.
Fengyuan Yang (Advisor)
Leonard Brillson (Committee Member)
Ralf Bundshuh (Committee Member)
Richard Furnstahl (Committee Member)
146 p.
Physics
Sputtering; Thin Film; Spintronics; Pyrochlore; FeGe; Yttrium Iron Garnet; Skyrmion

Recommended Citations

Citations

  • Gallagher, J. C. (2016). Synthesis and Investigation of High Quality Materials for Spintronics Applications [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469141590

    APA Style (7th edition)

  • Gallagher, James. Synthesis and Investigation of High Quality Materials for Spintronics Applications. 2016. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1469141590.

    MLA Style (8th edition)

  • Gallagher, James. "Synthesis and Investigation of High Quality Materials for Spintronics Applications." Doctoral dissertation, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469141590

    Chicago Manual of Style (17th edition)

osu1469141590
308
© 2016, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.