Polarization-dependent optical properties of Ce-implanted Mg<sub>2</sub>SiO<sub>4</sub>

ORAL

Abstract

Since the solid-state spin qubit’s performance depends highly on its host material [1,2], in previous work, we have investigated the spin centers in an oxide (MgAl2O4) and suggested its Ce3+ center’s optically accessible spin properties [3]. Here, based on the theoretical predictions of the long coherence times [4], we investigate the Ce3+ center in forsterite (Mg2SiO4).

We implant the Ce ion into the forsterite substrate with the implantation dose and power of 1.0×1014 cm-2 and 100 keV, respectively. We measure polarization-dependent optical properties of the sample annealed at 700oC. The degree of circular polarization reaches 18%(24%) at 10 K with 0 mT(500 mT). This suggests the Ce center in forsterite is similar to the Ce3+ in YAG[5]; in this system, the 5d-4f transition of Ce3+ enables the optical initialization and readout of the spin qubit.



[1] P. Neumann et al., Science 320, 5881 (2008).

[2] W. F. Kohel et al., Nature 479, 84 (2011).

[3] M. Kawahara et al., Appl. Phys. Express 17, 072004 (2024).

[4] S. Kanai et al., Proc. Natl. Acad. Sci. 119, e2121808119 (2022).

[5] P. Liang et al., Phys. Rev. B 99, 024308 (2019).

*This work was partly supported by JSPS Kakenhi; SIP; JST-ASPIRE, JST-PRESTO. Work at Argonne (F.J.H., D.D.A) was supported by the U.S. Department of Energy, Office of Science; Basic Energy Sciences, Materials Sciences, and Engineering Division, with additional support (G.G) from MICCoM.

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Presenters

  • Manato Kawahara

    • Tohoku University, Japan

Authors

  • Manato Kawahara

    • Tohoku University, Japan

  • Koki Takano

    • Tohoku University, Japan

  • Yoshiki Maeda

    • Tohoku University, Japan

  • Jun Ishihara

    • Tohoku University, Japan

  • Makoto Kohda

    • Tohoku University, Japan

  • Shunsuke Fukami

    • Tohoku University, Japan

  • F. Joseph Heremans

    • Argonne Nantional Lab
    • Materials Science Division and X-ray Science Division, Argonne National Laboratory
    • Argonne National Laboratory
    • Argonne National Lab
    • University of Chicago

  • Giulia Galli

    • University of Chicago

  • David D Awschalom

    • University of Chicago
    • Pritzker School of Molecular Engineering and Department of Physics, University of Chicago, Chicago, IL, USA
    • Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA.
    • Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
    • Argonne National Laboratory

  • Hideo Ohno

    • Tohoku University, Japan

  • Shun Kanai

    • Tohoku University, Japan