E-field controlled phase transformation in bismuth ferrite thin films, and effect of laser energy density
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Dept. of Materials Science and Engineering
Heterostructures of BiFeO3/Pb(Mg1/3Nb2/3)O3-30%PbTiO3 (BFO/PMN-30PT) were fabricated here by pulsed laser deposition. Electric fields (E) were applied on the PMN-30PT substrates along the in-plane and out-of-plane directions, and the induced strain of BFO was measured as a function of E by X-ray diffraction. Reciprocal space maps along the (110) zone axis evidenced that a monoclinic MA phase was induced in both PMN-PT and BFO, where the dominate domain structures could be switched between biaxial directions under application of in-plane E. Studies were done for films prepared under different laser energy densities (LED), in order to optimize the in-plane strain of BFO. A relatively low LED of 1 J/cm2 produced a better BFO thin film with larger in-plane strain.
- Research Organization:
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); US Air Force Office of Scientific Research (AFOSR)
- Grant/Contract Number:
- FG02-06ER46290; FA9550-16-1-0001
- OSTI ID:
- 1510948
- Alternate ID(s):
- OSTI ID: 1399056
- Journal Information:
- Applied Physics Letters, Vol. 111, Issue 15; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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