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Giant g-factors and fully spin-polarized states in metamorphic short-period InAsSb/InSb superlattices

Author

Listed:
  • Yuxuan Jiang

    (Georgia Institute of Technology
    National High Magnetic Field Laboratory)

  • Maksim Ermolaev

    (Stony Brook University)

  • Gela Kipshidze

    (Stony Brook University)

  • Seongphill Moon

    (National High Magnetic Field Laboratory
    Florida State University)

  • Mykhaylo Ozerov

    (National High Magnetic Field Laboratory)

  • Dmitry Smirnov

    (National High Magnetic Field Laboratory)

  • Zhigang Jiang

    (Georgia Institute of Technology)

  • Sergey Suchalkin

    (Stony Brook University)

Abstract

Realizing a large Landé g-factor of electrons in solid-state materials has long been thought of as a rewarding task as it can trigger abundant immediate applications in spintronics and quantum computing. Here, by using metamorphic InAsSb/InSb superlattices (SLs), we demonstrate an unprecedented high value of g ≈ 104, twice larger than that in bulk InSb, and fully spin-polarized states at low magnetic fields. In addition, we show that the g-factor can be tuned on demand from 20 to 110 via varying the SL period. The key ingredients of such a wide tunability are the wavefunction mixing and overlap between the electron and hole states, which have drawn little attention in prior studies. Our work not only establishes metamorphic InAsSb/InSb as a promising and competitive material platform for future quantum devices but also provides a new route toward g-factor engineering in semiconductor structures.

Suggested Citation

  • Yuxuan Jiang & Maksim Ermolaev & Gela Kipshidze & Seongphill Moon & Mykhaylo Ozerov & Dmitry Smirnov & Zhigang Jiang & Sergey Suchalkin, 2022. "Giant g-factors and fully spin-polarized states in metamorphic short-period InAsSb/InSb superlattices," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-33560-x
    DOI: 10.1038/s41467-022-33560-x
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    Cited by:

    1. Wenbin Wu & Zeping Shi & Mykhaylo Ozerov & Yuhan Du & Yuxiang Wang & Xiao-Sheng Ni & Xianghao Meng & Xiangyu Jiang & Guangyi Wang & Congming Hao & Xinyi Wang & Pengcheng Zhang & Chunhui Pan & Haifeng , 2024. "The discovery of three-dimensional Van Hove singularity," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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