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Acknowledgements

The authors would like to thank Y. Maeno, S. Yonezawa, A. Ikeda, and Y. Matsuda for

their valuable discussions. This work was supported by the Kyoto University LTM

Center, Grants-in-Aid for Scientific Research (Grant Nos. JP19K14657, JP19H04696,

JP20H00130, JP20KK0061, JP21K18600, JP22H04933, JP22H01168, and JP23H01124)

and Grant-in-Aid for JSPS Research Fellows (Grant No. JP23KJ1247) from JSPS.

Author contributions

F.H. and K.I. designed the research. F.H., K.K., S.K., and K.I. performed NMR/NQR

measurements. Y.O. and T.O. synthesized and characterization of the bulk samples. S.M.,

R.Y., Y.O., and T.O. performed specific heat measurements. All authors contributed to

interpreting the experimental results and finalizing the manuscript.

Competing interests

The authors declare no competing interests.

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