Polar precursor ordering in BaTiO3 detected by resonant piezoelectric spectroscopy

被引：50

作者：

Aktas, Oktay ^{[1
]}

Carpenter, Michael A. ^{[1
]}

Salje, Ekhard K. H. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 14期

基金：

英国工程与自然科学研究理事会;

关键词：

PHASE-TRANSITIONS; DOMAIN BOUNDARIES;

D O I：

10.1063/1.4823576

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An experimental method, Resonant Piezoelectric Spectroscopy (RPS), is introduced for the detection of polar precursor effects in ferroelectric and multiferroic materials. RPS is based on the excitation of elastic waves through the piezoelectric effect in a sample. As the intensity of these waves is significantly amplified through mechanical resonances, RPS is very sensitive to the development of polar nanostructures. Using RPS, we identify polar nanostructures in BaTiO3 as a precursor in the cubic phase. Results are compatible with polar tweed structures which persist up to 613 K. This temperature is much higher than previously reported. (C) 2013 AIP Publishing LLC.

引用

页数：4

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