Gradient chemical order in the relaxor Pb(Mg1/3Nb2/3)O3

Matthew J. Cabral; Shujun Zhang; Elizabeth C. Dickey; James M. Lebeau

doi:10.1063/1.5016561

Gradient chemical order in the relaxor Pb(Mg_1/3Nb_2/3)O₃

Matthew J. Cabral
, Shujun Zhang
, Elizabeth C. Dickey
, James M. Lebeau

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

36 Citations (Scopus)

Abstract

Here, we apply aberration-corrected scanning transmission electron microscopy to quantify chemical ordering in the relaxor Pb(Mg_1/3Nb_2/3)O₃ (PMN). We find that contrary to the prevailing model of a binary distribution of chemically ordered regions within a disordered matrix, the degree of ordering smoothly varies within an ordered domain and approaches a minimum at anti-phase boundaries. These results provide direct insight into the nature of cation ordering in this important prototypical relaxor material. © 2018 Author(s).

Original language	English
Article number	082901
Journal	Applied Physics Letters
Volume	112
Issue number	8
DOIs	https://doi.org/10.1063/1.5016561
Publication status	Published - 19 Feb 2018
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This material is based upon the work supported by the National Science Foundation, as part of the Center for Dielectrics and Piezoelectric under Grant Nos. IIP-1361571 and IIP-1361503. M.J.C. gratefully acknowledges support from the National Science Foundation as part of the NRTSEAS under Grant No. DGE-1633587. S.Z. acknowledges the support of ONRG under Grant No. N62909-16-12126. This work was performed in part at the Analytical Instrumentation Facility (AIF) at North Carolina State University, which is supported by the State of North Carolina and the National Science Foundation (ECCS-1542015). AIF is a member of the North Carolina Research Triangle Nanotechnology Network (RTNN), a site in the National Nanotechnology Coordinated Infrastructure (NNCI).

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title = "Gradient chemical order in the relaxor Pb(Mg1/3Nb2/3)O3",

abstract = "Here, we apply aberration-corrected scanning transmission electron microscopy to quantify chemical ordering in the relaxor Pb(Mg1/3Nb2/3)O3 (PMN). We find that contrary to the prevailing model of a binary distribution of chemically ordered regions within a disordered matrix, the degree of ordering smoothly varies within an ordered domain and approaches a minimum at anti-phase boundaries. These results provide direct insight into the nature of cation ordering in this important prototypical relaxor material. {\textcopyright} 2018 Author(s).",

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AU - Zhang, Shujun

AU - Dickey, Elizabeth C.

AU - Lebeau, James M.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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AB - Here, we apply aberration-corrected scanning transmission electron microscopy to quantify chemical ordering in the relaxor Pb(Mg1/3Nb2/3)O3 (PMN). We find that contrary to the prevailing model of a binary distribution of chemically ordered regions within a disordered matrix, the degree of ordering smoothly varies within an ordered domain and approaches a minimum at anti-phase boundaries. These results provide direct insight into the nature of cation ordering in this important prototypical relaxor material. © 2018 Author(s).

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