Magnetotransport of the Jeff = 1/2 antiferromagnetic Sr2IrO4Cheng Liang Lu, School of Physics, Huazhong University of Sceince and Technology, Wuhan 430072, China

ORAL · Invited

Abstract

Iridates have been providing a fertile ground for studying emergent phases of matter that arise from delicate interplay of various fundamental interactions with approximate energy scale. Among these highly focused quantum materials, perovskite Sr2IrO4 stands out and has been intensively addressed in the past decade, since it hosts a novel Jeff=1/2 Mott state and quasi-two-dimensional square antiferromagnetic lattice. In this talk, I will discuss some interesting aspects of magneto-transport of the Jeff=1/2 antiferromagnet Sr2IrO4, including the giant anisotropic magnetoresistance (AMR) reaching ~160%, H-driven AMR-reversal behaviour due to bandgap engineering, and their control by various means such as magnetic/electric field, strain, and chemical substitution.

–

Publication: 1. H. W. Wang, C. L. Lu*, et al., Nat. Commun. 10, 2280 (2019)
2. C. L. Lu and J. –M. Liu, Adv. Mater. 32, 1904508 (2020).
3. H. W. Wang, …, C. L. Lu*, et al., Phys. Rev. Appl. 10, 014025 (2018).
4. C. L. Lu, et al., Adv. Funct. Mater. 28, 1706589 (2018).
5. H. W. Wang, …, C. L. Lu*, et al., Phys. Rev. Mater. 5, 104412 (2021).

Presenters

  • Chengliang Lu

    School of Physics, Huazhong University of Science and Technology, Wuhan 430072, China

Authors

  • Chengliang Lu

    School of Physics, Huazhong University of Science and Technology, Wuhan 430072, China