Heteroepitaxy of Fe3O4/Muscovite: A New Perspective for Flexible Spintronics

Ping Chun Wu, Ping Fan Chen, Thi Hien Do, Ying Hui Hsieh, Chun Hao Ma, Thai Duy Ha, Kun Hong Wu, Yu Jia Wang, Hao Bo Li, Yi Chun Chen, Jenh Yih Juang, Pu Yu, Lukas M. Eng, Chun Fu Chang, Po Wen Chiu, Liu Hao Tjeng, Ying Hao Chu

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)


Spintronics has captured a lot of attention since it was proposed. It has been triggering numerous research groups to make their efforts on pursuing spin-related electronic devices. Recently, flexible and wearable devices are in a high demand due to their outstanding potential in practical applications. In order to introduce spintronics into the realm of flexible devices, we demonstrate that it is feasible to grow epitaxial Fe3O4 film, a promising candidate for realizing spintronic devices based on tunneling magnetoresistance, on flexible muscovite. In this study, the heteroepitaxy of Fe3O4/muscovite is characterized by X-ray diffraction, high-resolution transmission electron microscopy, and Raman spectroscopy. The chemical composition and magnetic feature are investigated by a combination of X-ray photoelectron spectroscopy and X-ray magnetic circular dichroism. The electrical and magnetic properties are examined to show the preservation of the primitive properties of Fe3O4. Furthermore, various bending tests are performed to show the tunability of functionalities and to confirm that the heterostructures retain the physical properties under repeated cycles. These results illustrate that the Fe3O4/muscovite heterostructure can be a potential candidate for the applications in flexible spintronics.

Original languageEnglish
Pages (from-to)33794-33801
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number49
Publication statusPublished - 2016 Dec 14

All Science Journal Classification (ASJC) codes

  • General Materials Science


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