Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21638
Title: Temperature-dependent piezoelectric and dielectric properties of charge-ordered Lu2Fe2.1Mn0.9O7
Authors: Chen, Y
Dai, JY 
Au, K
Lam, KH
Qin, YB
Yang, HX
Keywords: Ferroelectrics
Dielectrics
Ceramics
Issue Date: 2012
Publisher: North-Holland
Source: Materials letters, 2012, v. 68, p. 54-56 How to cite?
Journal: Materials letters 
Abstract: Ferroelectric and piezoelectric properties of layered Lu2Fe2.1Mn0.9O7 ceramic have been investigated by temperature-dependent piezoresponse force microcopy (PFM) and dielectric measurements. The PFM results illustrate the existence of piezoelectric properties and ferroelectric phase transition temperature of about 90 degrees C at which the piezoelectricity vanishes. This transition temperature is manifested by the appearance of a shoulder at about 90 degrees C in the temperature-dependent dielectric curve of the poled sample. A macro-to-micro domain transition is proposed to explain this ferroelectric phase transition. Besides, the ferroelectric properties of the Lu2Fe2.1Mn0.9O7 ceramic are further demonstrated by the polarization-electric field hysteresis (P-E) loop measurement.
URI: http://hdl.handle.net/10397/21638
ISSN: 0167-577X
EISSN: 1873-4979
DOI: 10.1016/j.matlet.2011.10.032
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