Microstructural characterizations of ferroelectromagnet lead iron niobate crystals

被引：20

作者：

Yang, Y

Zhang, ST

Huang, HB

Chen, YF

Liu, ZG

Liu, JM ^{[1
]}

机构：

[1] Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 14-15期

基金：

中国国家自然科学基金;

关键词：

ferroelectromagnet; characterizations; X-ray diffraction; scanning tip near-field microwave microscope (STMNM); Mossbauer spectra;

D O I：

10.1016/j.matlet.2005.01.063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lead iron niobate Pb(Fe1/2Nb1/2)O-3 (PFN) is one of intensively studied perovskite ferroelectromagnets (FEMs) with the coexistence of ferroelectric and antiferromagnetic orderings. Single crystals of PFN are grown from high temperature solution with PbO as flux. The nanoscale domain pattern of the crystal and its dielectric constant is measured using scanning tip near-field microwave microscope (STMNM). The observed nano-scale periodic profiles of the dielectric constant indicate the possible coexistence of ferroelectric and antiferromagnetic domains. Mossbauer studies reveal the roles of iron ions of various valances and the energy-band structure. The underlined physics is discussed. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1767 / 1770

页数：4

共 27 条

[1] Fabrication of PMN and PFN ceramics by a two-stage sintering technique [J].