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Title: Flexible Heteroepitaxy of CoFe 2 O 4 /Muscovite Bimorph with Large Magnetostriction

Van der Waals epitaxy was used to fabricate a bimorph composed of ferrimagnetic cobalt ferrite (CoFe 2O 4, CFO) and flexible muscovite. The combination of X-ray diffraction and transmission electron microscopy was conducted to reveal the heteroepitaxy of the CFO/muscovite system. The robust magnetic behaviors against mechanical bending were characterized by hysteresis measurements and magnetic force microscopy, which maintain a saturation magnetization (Ms) of ~120–150 emu/cm 3 under different bending states. The large magnetostrictive response of the CFO film was then determined by digital holographic microscopy, where the difference of magnetostrction coefficient (Δλ) is -104 ppm. We attribute the superior performance of this bimorph to the nature of weak interaction between film and substrate. Such a flexible CFO/muscovite bimorph provides a new platform to develop next-generation flexible magnetic devices.
Authors:
 [1] ;  [2] ; ORCiD logo [3] ;  [4] ;  [5] ;  [6] ;  [6] ;  [4] ;  [7] ;  [8] ; ORCiD logo [9]
  1. National Chung Hsing Univ., Taichung (Taiwan). Dept. of Materials Science and Engineering
  2. National Chiao Tung Univ., Hsinchu (Taiwan). Dept. of Materials Science and Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials
  4. National Chiao Tung Univ., Hsinchu (Taiwan). Dept. of Electrophysics
  5. National Chung Hsing Univ., Taichung (Taiwan). Dept. of Materials Science and Engineering; Dresden Univ. of Technology (Germany). Inst. for Applied Photophysics
  6. National Cheng Kung Univ., Tainan City (Taiwan). Dept. of Physics
  7. Dresden Univ. of Technology (Germany). Inst. for Applied Photophysics
  8. Academia Sinica, Taipei (Taiwan). Inst. of Physics; National Taiwan Ocean Univ., Keelung (Taiwan). Inst. of Optoelectronic Science
  9. National Chiao Tung Univ., Hsinchu (Taiwan). Dept. of Materials Science and Engineering; National Chiao Tung Univ., Hsinchu (Taiwan). Dept. of Electrophysics; Academia Sinica, Taipei (Taiwan). Inst. of Physics
Publication Date:
Report Number(s):
BNL-113638-2017-JA
Journal ID: ISSN 1944-8244; R&D Project: 16060; 16060; KC0403020; TRN: US1700889
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 9; Journal Issue: 8; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; cobalt ferrite (CoFe2O4); flexible magnetic devices; magnetostriction; muscovite (mica); van der Waals epitaxy; Center for Functional Nanomaterials
OSTI Identifier:
1345770

Liu, Heng-Jui, Wang, Chih-Kuo, Su, Dong, Amrillah, Tahta, Hsieh, Ying-Hui, Wu, Kun-Hong, Chen, Yi-Chun, Juang, Jenh-Yih, Eng, Lukas M., Jen, Shien-Uang, and Chu, Ying-Hao. Flexible Heteroepitaxy of CoFe 2 O 4 /Muscovite Bimorph with Large Magnetostriction. United States: N. p., Web. doi:10.1021/acsami.6b16485.
Liu, Heng-Jui, Wang, Chih-Kuo, Su, Dong, Amrillah, Tahta, Hsieh, Ying-Hui, Wu, Kun-Hong, Chen, Yi-Chun, Juang, Jenh-Yih, Eng, Lukas M., Jen, Shien-Uang, & Chu, Ying-Hao. Flexible Heteroepitaxy of CoFe 2 O 4 /Muscovite Bimorph with Large Magnetostriction. United States. doi:10.1021/acsami.6b16485.
Liu, Heng-Jui, Wang, Chih-Kuo, Su, Dong, Amrillah, Tahta, Hsieh, Ying-Hui, Wu, Kun-Hong, Chen, Yi-Chun, Juang, Jenh-Yih, Eng, Lukas M., Jen, Shien-Uang, and Chu, Ying-Hao. 2017. "Flexible Heteroepitaxy of CoFe 2 O 4 /Muscovite Bimorph with Large Magnetostriction". United States. doi:10.1021/acsami.6b16485. https://www.osti.gov/servlets/purl/1345770.
@article{osti_1345770,
title = {Flexible Heteroepitaxy of CoFe 2 O 4 /Muscovite Bimorph with Large Magnetostriction},
author = {Liu, Heng-Jui and Wang, Chih-Kuo and Su, Dong and Amrillah, Tahta and Hsieh, Ying-Hui and Wu, Kun-Hong and Chen, Yi-Chun and Juang, Jenh-Yih and Eng, Lukas M. and Jen, Shien-Uang and Chu, Ying-Hao},
abstractNote = {Van der Waals epitaxy was used to fabricate a bimorph composed of ferrimagnetic cobalt ferrite (CoFe2O4, CFO) and flexible muscovite. The combination of X-ray diffraction and transmission electron microscopy was conducted to reveal the heteroepitaxy of the CFO/muscovite system. The robust magnetic behaviors against mechanical bending were characterized by hysteresis measurements and magnetic force microscopy, which maintain a saturation magnetization (Ms) of ~120–150 emu/cm3 under different bending states. The large magnetostrictive response of the CFO film was then determined by digital holographic microscopy, where the difference of magnetostrction coefficient (Δλ) is -104 ppm. We attribute the superior performance of this bimorph to the nature of weak interaction between film and substrate. Such a flexible CFO/muscovite bimorph provides a new platform to develop next-generation flexible magnetic devices.},
doi = {10.1021/acsami.6b16485},
journal = {ACS Applied Materials and Interfaces},
number = 8,
volume = 9,
place = {United States},
year = {2017},
month = {2}
}