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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 19, 2018
- Source ID
- 10.1063/1.5016561
Entities
People
- Elizabeth C Dickey
- James M. LeBeau
- Matthew J Cabral
- Shujun Zhang
Organizations
- National Science Foundation
- North Carolina State University
- Office of Naval Research Global
- University of Wollongong