Perpendicular magnetic anisotropy in garnet-type ferromagnetic insulators used for inducing T-symmetry break in topological insulators

• Applicant: Dr. Andy Quindeau
• Subject Area: Experimental Condensed Matter Physics
• Term: from 2016 to 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 310372030

• Final Report Year: 2017

Final Report Abstract

The project can be summarized under three main points: 1. Successful synthesis of a ferromagnetic insulator thin film: A comprehensive characterization with state of the art methodology has been conducted and published. 2. Reversible switching of a ferromagnetic insulator thin film via a spin current: Demonstrated and published a first-of-its-kind experiment, where a spin current generated via spin Hall effect successfully controlled and probed the magnetization polarization of a ferromagnetic insulator. 3. Established a new project, which expands on FMR experiments in order to study magnetization dynamics in TmIG/Pt bilayer systems.

Publications

• (2017) Current-induced switching in a magnetic insulator. Nature materials 16 (3) 309–314
  Avci, Can Onur; Quindeau, Andy; Pai, Chi-Feng; Mann, Maxwell; Caretta, Lucas; Tang, Astera S.; Onbasli, Mehmet C.; Ross, Caroline A.; Beach, Geoffrey S. D.
  (See online at https://doi.org/10.1038/nmat4812)
• (2017) Spin transport in as-grown and annealed thulium iron garnet/platinum bilayers with perpendicular magnetic anisotropy. Phys. Rev. B (Physical Review B) 95 (11) 115428
  Avci, Can Onur; Quindeau, Andy; Mann, Maxwell; Pai, Chi-Feng; Ross, Caroline A.; Beach, Geoffrey S. D.
  (See online at https://doi.org/10.1103/PhysRevB.95.115428)
• (2017) Tm 3 Fe 5 O 12 /Pt Heterostructures with Perpendicular Magnetic Anisotropy for Spintronic Applications. Adv. Electron. Mater. (Advanced Electronic Materials) 3 (1) 1600376
  Quindeau, Andy; Avci, Can O.; Liu, Wenqing; Sun, Congli; Mann, Maxwell; Tang, Astera S.; Onbasli, Mehmet C.; Bono, David; Voyles, Paul M.; Xu, Yongbing; Robinson, Jason; Beach, Geoffrey S. D.; Ross, Caroline A.
  (See online at https://doi.org/10.1002/aelm.201600376)