A Strain-Driven Morphotropic Phase Boundary in BiFeO3

R. J. Zeches; M. D. Rossell; J. X. Zhang; A. J. Hatt; Q. He; C. -H. Yang; A. Kumar; C. H. Wang; A. Melville; C. Adamo; G. Sheng; Y. -H. Chu; J. F. Ihlefeld; R. Erni; C. Ederer; V. Gopalan; L. Q. Chen; D. G. Schlom; N. A. Spaldin; L. W. Martin; R. Ramesh

doi:10.1126/science.1177046

A Strain-Driven Morphotropic Phase Boundary in BiFeO3

R. J. Zeches, M. D. Rossell, J. X. Zhang, A. J. Hatt, Q. He, C. -H. Yang, A. Kumar, C. H. Wang, A. Melville, C. Adamo, G. Sheng, Y. -H. Chu, J. F. Ihlefeld, R. Erni, C. Ederer, V. Gopalan, L. Q. Chen, D. G. Schlom, N. A. Spaldin, L. W. MartinR. Ramesh

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890 Citations (Scopus)

Abstract

Piezoelectric materials, which convert mechanical to electrical energy and vice versa, are typically characterized by the intimate coexistence of two phases across a morphotropic phase boundary. Electrically switching one to the other yields large electromechanical coupling coefficients. Driven by global environmental concerns, there is currently a strong push to discover practical lead-free piezoelectrics for device engineering. Using a combination of epitaxial growth techniques in conjunction with theoretical approaches, we show the formation of a morphotropic phase boundary through epitaxial constraint in lead-free piezoelectric bismuth ferrite (BiFeO3) films. Electric field-dependent studies show that a tetragonal-like phase can be reversibly converted into a rhombohedral-like phase, accompanied by measurable displacements of the surface, making this new lead-free system of interest for probe-based data storage and actuator applications.

Original language	English
Pages (from-to)	977-980
Number of pages	4
Journal	Science
Volume	326
Issue number	5955
DOIs	https://doi.org/10.1126/science.1177046
Publication status	Published - 13 Nov 2009

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Zeches, R. J., Rossell, M. D., Zhang, J. X., Hatt, A. J., He, Q., Yang, C. -H., Kumar, A., Wang, C. H., Melville, A., Adamo, C., Sheng, G., Chu, Y. -H., Ihlefeld, J. F., Erni, R., Ederer, C., Gopalan, V., Chen, L. Q., Schlom, D. G., Spaldin, N. A., ... Ramesh, R. (2009). A Strain-Driven Morphotropic Phase Boundary in BiFeO3. Science, 326(5955), 977-980. https://doi.org/10.1126/science.1177046

@article{aa9f1810457c4129bb3975808014f43a,

title = "A Strain-Driven Morphotropic Phase Boundary in BiFeO3",

abstract = "Piezoelectric materials, which convert mechanical to electrical energy and vice versa, are typically characterized by the intimate coexistence of two phases across a morphotropic phase boundary. Electrically switching one to the other yields large electromechanical coupling coefficients. Driven by global environmental concerns, there is currently a strong push to discover practical lead-free piezoelectrics for device engineering. Using a combination of epitaxial growth techniques in conjunction with theoretical approaches, we show the formation of a morphotropic phase boundary through epitaxial constraint in lead-free piezoelectric bismuth ferrite (BiFeO3) films. Electric field-dependent studies show that a tetragonal-like phase can be reversibly converted into a rhombohedral-like phase, accompanied by measurable displacements of the surface, making this new lead-free system of interest for probe-based data storage and actuator applications.",

author = "Zeches, {R. J.} and Rossell, {M. D.} and Zhang, {J. X.} and Hatt, {A. J.} and Q. He and Yang, {C. -H.} and A. Kumar and Wang, {C. H.} and A. Melville and C. Adamo and G. Sheng and Chu, {Y. -H.} and Ihlefeld, {J. F.} and R. Erni and C. Ederer and V. Gopalan and Chen, {L. Q.} and Schlom, {D. G.} and Spaldin, {N. A.} and Martin, {L. W.} and R. Ramesh",

year = "2009",

month = nov,

day = "13",

doi = "10.1126/science.1177046",

language = "English",

volume = "326",

pages = "977--980",

journal = "Science",

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publisher = "American Association for the Advancement of Science",

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Zeches, RJ, Rossell, MD, Zhang, JX, Hatt, AJ, He, Q, Yang, C-H, Kumar, A, Wang, CH, Melville, A, Adamo, C, Sheng, G, Chu, Y-H, Ihlefeld, JF, Erni, R, Ederer, C, Gopalan, V, Chen, LQ, Schlom, DG, Spaldin, NA, Martin, LW & Ramesh, R 2009, 'A Strain-Driven Morphotropic Phase Boundary in BiFeO3', Science, vol. 326, no. 5955, pp. 977-980. https://doi.org/10.1126/science.1177046

TY - JOUR

T1 - A Strain-Driven Morphotropic Phase Boundary in BiFeO3

AU - Zeches, R. J.

AU - Rossell, M. D.

AU - Zhang, J. X.

AU - Hatt, A. J.

AU - He, Q.

AU - Yang, C. -H.

AU - Kumar, A.

AU - Wang, C. H.

AU - Melville, A.

AU - Adamo, C.

AU - Sheng, G.

AU - Chu, Y. -H.

AU - Ihlefeld, J. F.

AU - Erni, R.

AU - Ederer, C.

AU - Gopalan, V.

AU - Chen, L. Q.

AU - Schlom, D. G.

AU - Spaldin, N. A.

AU - Martin, L. W.

AU - Ramesh, R.

PY - 2009/11/13

Y1 - 2009/11/13

N2 - Piezoelectric materials, which convert mechanical to electrical energy and vice versa, are typically characterized by the intimate coexistence of two phases across a morphotropic phase boundary. Electrically switching one to the other yields large electromechanical coupling coefficients. Driven by global environmental concerns, there is currently a strong push to discover practical lead-free piezoelectrics for device engineering. Using a combination of epitaxial growth techniques in conjunction with theoretical approaches, we show the formation of a morphotropic phase boundary through epitaxial constraint in lead-free piezoelectric bismuth ferrite (BiFeO3) films. Electric field-dependent studies show that a tetragonal-like phase can be reversibly converted into a rhombohedral-like phase, accompanied by measurable displacements of the surface, making this new lead-free system of interest for probe-based data storage and actuator applications.

AB - Piezoelectric materials, which convert mechanical to electrical energy and vice versa, are typically characterized by the intimate coexistence of two phases across a morphotropic phase boundary. Electrically switching one to the other yields large electromechanical coupling coefficients. Driven by global environmental concerns, there is currently a strong push to discover practical lead-free piezoelectrics for device engineering. Using a combination of epitaxial growth techniques in conjunction with theoretical approaches, we show the formation of a morphotropic phase boundary through epitaxial constraint in lead-free piezoelectric bismuth ferrite (BiFeO3) films. Electric field-dependent studies show that a tetragonal-like phase can be reversibly converted into a rhombohedral-like phase, accompanied by measurable displacements of the surface, making this new lead-free system of interest for probe-based data storage and actuator applications.

U2 - 10.1126/science.1177046

DO - 10.1126/science.1177046

M3 - Article

VL - 326

SP - 977

EP - 980

JO - Science

JF - Science

SN - 0036-8075

IS - 5955

ER -

A Strain-Driven Morphotropic Phase Boundary in BiFeO3

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