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Synthesis and characterization of Bi1?xNdxFeO3 thin films deposited using a high throughput physical vapour deposition technique

Synthesis and characterization of Bi1?xNdxFeO3 thin films deposited using a high throughput physical vapour deposition technique
Synthesis and characterization of Bi1?xNdxFeO3 thin films deposited using a high throughput physical vapour deposition technique
The high throughput synthesis of BiFeO3 and rare earth doped BiFeO3 films using a modified molecular beam epitaxy technique is reported. Optimum conditions for deposition have been established and compositionally graded Bi(1 ? x)NdxFeO3 (x = 0.08 to 0.24) thin films have been fabricated on platinised silicon substrate (Si/SiO2/TiO2/Pt) with the aim of finding the optimum Nd dopant concentrations for enhanced piezoelectric properties. For x < 0.12, the structure and symmetry were identical to that of the R3c BiFeO3 end member. For x > 0.20, the structure and symmetry were consistent with the NdFeO3 end member (Pnma). For compositions 0.12 < x < 0.2, a gradual transition from R3c to Pnma was observed via a mixed phase region but no compositional interval could be unambiguously identified in which the intermediate PbZrO3-like structure, reported by Karimi et al. (2009), existed as a single phase. Piezoresponse force microscopy remanent hysteresis measurements of the film revealed a statistical increase in the piezoelectric response at x ? 0.11 within the R3c region adjacent to the mixed phase field.
0040-6090
56-60
Darby, M.S.B.
c6ef0c2c-dd94-4e39-bae4-e785657048f0
Karpinsky, D.V.
ecf629fa-227c-4ba1-a397-85105a48d504
Pokorny, J.
4e1a07c3-f0f8-46c9-ab8e-df1130f1e3a5
Guerin, S.
e185e0c2-85c6-4d1c-a2cf-cd2f410d346f
Kholkin, A.L.
a31d5369-62f1-4a04-b9ae-43e332010b08
Miao, S.
af4aeb34-274f-4e7e-a9e2-311971de9674
Hayden, B.E.
aea74f68-2264-4487-9d84-5b12ddbbb331
Reaney, I.M.
cf9964df-bbfc-4057-8cf7-2dfa12eac58c
Darby, M.S.B.
c6ef0c2c-dd94-4e39-bae4-e785657048f0
Karpinsky, D.V.
ecf629fa-227c-4ba1-a397-85105a48d504
Pokorny, J.
4e1a07c3-f0f8-46c9-ab8e-df1130f1e3a5
Guerin, S.
e185e0c2-85c6-4d1c-a2cf-cd2f410d346f
Kholkin, A.L.
a31d5369-62f1-4a04-b9ae-43e332010b08
Miao, S.
af4aeb34-274f-4e7e-a9e2-311971de9674
Hayden, B.E.
aea74f68-2264-4487-9d84-5b12ddbbb331
Reaney, I.M.
cf9964df-bbfc-4057-8cf7-2dfa12eac58c

Darby, M.S.B., Karpinsky, D.V., Pokorny, J., Guerin, S., Kholkin, A.L., Miao, S., Hayden, B.E. and Reaney, I.M. (2013) Synthesis and characterization of Bi1?xNdxFeO3 thin films deposited using a high throughput physical vapour deposition technique. Thin Solid Films, 531, 56-60. (doi:10.1016/j.tsf.2012.12.012).

Record type: Article

Abstract

The high throughput synthesis of BiFeO3 and rare earth doped BiFeO3 films using a modified molecular beam epitaxy technique is reported. Optimum conditions for deposition have been established and compositionally graded Bi(1 ? x)NdxFeO3 (x = 0.08 to 0.24) thin films have been fabricated on platinised silicon substrate (Si/SiO2/TiO2/Pt) with the aim of finding the optimum Nd dopant concentrations for enhanced piezoelectric properties. For x < 0.12, the structure and symmetry were identical to that of the R3c BiFeO3 end member. For x > 0.20, the structure and symmetry were consistent with the NdFeO3 end member (Pnma). For compositions 0.12 < x < 0.2, a gradual transition from R3c to Pnma was observed via a mixed phase region but no compositional interval could be unambiguously identified in which the intermediate PbZrO3-like structure, reported by Karimi et al. (2009), existed as a single phase. Piezoresponse force microscopy remanent hysteresis measurements of the film revealed a statistical increase in the piezoelectric response at x ? 0.11 within the R3c region adjacent to the mixed phase field.

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Published date: 15 March 2013
Organisations: Chemistry

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Local EPrints ID: 353153
URI: http://eprints.soton.ac.uk/id/eprint/353153
ISSN: 0040-6090
PURE UUID: 201f82c5-7e6a-400e-9d88-4a990313433c
ORCID for B.E. Hayden: ORCID iD orcid.org/0000-0002-7762-1812

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Date deposited: 03 Jun 2013 11:00
Last modified: 19 Nov 2019 02:03

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Contributors

Author: M.S.B. Darby
Author: D.V. Karpinsky
Author: J. Pokorny
Author: S. Guerin
Author: A.L. Kholkin
Author: S. Miao
Author: B.E. Hayden ORCID iD
Author: I.M. Reaney

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