期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 79, 期 1, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.79.011011
关键词
relaxors; neutron scattering; x-ray diffraction; skin effect; polar nano-region
资金
- U.S. Department of Energy [DE-AC02-98CH10886]
Neutron and x-ray scattering studies on relaxor ferroelectric systems Pb(Zn1/3Nb2/3)O-3 (PZN), Pb(Mg1/3Nb2/3)O-3 (PMN), and their solid Solutions with PbTiO3 (PT) have shown that inhomogeneities and disorder play important roles in the materials properties. Although a long-range polar order can be established at low temperature-sometimes with the help of an external electric field; short-range local structures called the polar nano-regions (PNR) still persist. Both the bulk structure and the PNR have been studied in details. The coexistence and competition of long- and short-range polar orders and how they affect the structural and dynamical properties of relaxor materials are discussed.
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