Deterministic optical control of room temperature multiferroicity in BiFeO3 thin films
- National Cheng Kung Univ., Tainan (Taiwan)
- Univ. of Texas, Arlington, TX (United States)
- Max Planck Society, Dresden (Germany); National Synchrotron Radiation Research Center, Hsinchu (Taiwan)
- National Chiao Tung Univ., Hsinchu (Taiwan)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- National Chung Hsing Univ., Taichung (Taiwan)
- Hiroshima Univ. (Japan)
- National Synchrotron Radiation Research Center, Hsinchu (Taiwan)
- Max Planck Society, Dresden (Germany)
- Univ. of New South Wales, Sydney, NSW (Australia)
- National Chiao Tung Univ., Hsinchu (Taiwan); Academia Sinica, Taipei (Taiwan)
Controlling ferroic orders (ferroelectricity, ferromagnetism and ferroelasticity) by optical methods is a significant challenge due to the large mismatch in energy scales between the order parameter coupling strengths and the incident photons. In this work, we demonstrate an approach to manipulate multiple ferroic orders in an epitaxial mixed-phase BiFeO3 thin film at ambient temperature via laser illumination. Phase-field simulations indicate that a light-driven flexoelectric effect enables the targeted formation of ordered domains. We also achieved precise sequential laser writing and erasure of different domain patterns, which demonstrates a deterministic optical control of multiferroicity at room temperature. As ferroic orders directly influence susceptibility and conductivity in complex materials, our results not only shed light on the optical control of multiple functionalities, but also indicate possible developments for optoelectronics and related applications.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Taiwan Ministry of Science and Technology (MOST); USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1542403
- Journal Information:
- Nature Materials, Journal Name: Nature Materials Journal Issue: 6 Vol. 18; ISSN 1476-1122
- Publisher:
- Springer Nature - Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Design and Manipulation of Ferroic Domains in Complex Oxide Heterostructures
|
text | January 2019 |
Design and Manipulation of Ferroic Domains in Complex Oxide Heterostructures
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journal | September 2019 |
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