Fig.2 (IMAGE) Osaka University Caption Optical microscopy image of the Fe3O4/hBN thin film transferred onto SiO2 substrate with electrodes. Credit ©2021, Shingo Genchi, Ai I. Osaka, Azusa N. Hattori, Kenji Watanabe, Takashi Taniguchi, Hidekazu Tanaka, ACS Applied Electronic Materials Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.