Bibliographical noteFunding Information:
ACKNOWLEDGMENTS. This work was supported by Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Scientific Research (Grant 17H06149). Y.J. is supported by the Materials Education program for the future leaders in Research, Industry, and Technology. We acknowledge the technical assistance of Mitsuyoshi Shimane and Nanion Technologies Japan K.K.. We thank Itsuro Saito, Masaya Nishinaka, and Chihiro Okutani for technical support and fruitful discussions.
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