A monoclinic-tetragonal ferroelectric phase transition in lead-free (K 0.5Na 0.5)NbO 3-x%LiNbO 3 solid solution

Wenwei Ge; Yang Ren; Jialiang Zhang; Christopher P. Devreugd; Jiefang Li; D. Viehland

doi:10.1063/1.4716027

A monoclinic-tetragonal ferroelectric phase transition in lead-free (K _0.5Na _0.5)NbO ₃-x%LiNbO ₃ solid solution

Wenwei Ge, Yang Ren, Jialiang Zhang, Christopher P. Devreugd, Jiefang Li, D. Viehland

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

52 Citations (Scopus)

Abstract

A monoclinic ferroelectric phase with space group Pm has been discovered in lead-free (K _0.5Na _0.5)NbO ₃-5LiNbO ₃ solid solution ceramics by high energy synchrotron x-ray powder diffraction measurements. At ambient temperature, the lattice parameters of this monoclinic structure were (a _m, b _m, c _m; β) (4.015 Å, 3.944 Å, 3.987 Å; 90.34 ^°). This monoclinic phase transformed to a tetragonal (P4mm) one on heating between 340 K and 360 K. The results demonstrate the presence of structurally bridging low symmetry monoclinic phase in (K _0.5Na _0.5)NbO ₃-xLiNbO ₃ solid solution system: indicating a means to achieve high piezoelectricity in Pb-free systems via domain engineering. © 2012 American Institute of Physics.

Original language	English
Article number	103503
Journal	Journal of Applied Physics
Volume	111
Issue number	10
DOIs	https://doi.org/10.1063/1.4716027
Publication status	Published - 15 May 2012
Externally published	Yes

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@article{83efadad47b94aeda1b6892ad7ffb9f9,

title = "A monoclinic-tetragonal ferroelectric phase transition in lead-free (K 0.5Na 0.5)NbO 3-x%LiNbO 3 solid solution",

abstract = "A monoclinic ferroelectric phase with space group Pm has been discovered in lead-free (K 0.5Na 0.5)NbO 3-5LiNbO 3 solid solution ceramics by high energy synchrotron x-ray powder diffraction measurements. At ambient temperature, the lattice parameters of this monoclinic structure were (a m, b m, c m; β) (4.015 {\AA}, 3.944 {\AA}, 3.987 {\AA}; 90.34 °). This monoclinic phase transformed to a tetragonal (P4mm) one on heating between 340 K and 360 K. The results demonstrate the presence of structurally bridging low symmetry monoclinic phase in (K 0.5Na 0.5)NbO 3-xLiNbO 3 solid solution system: indicating a means to achieve high piezoelectricity in Pb-free systems via domain engineering. {\textcopyright} 2012 American Institute of Physics.",

author = "Wenwei Ge and Yang Ren and Jialiang Zhang and Devreugd, {Christopher P.} and Jiefang Li and D. Viehland",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2012",

month = may,

day = "15",

doi = "10.1063/1.4716027",

language = "English",

volume = "111",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - A monoclinic-tetragonal ferroelectric phase transition in lead-free (K 0.5Na 0.5)NbO 3-x%LiNbO 3 solid solution

AU - Ge, Wenwei

AU - Ren, Yang

AU - Zhang, Jialiang

AU - Devreugd, Christopher P.

AU - Li, Jiefang

AU - Viehland, D.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2012/5/15

Y1 - 2012/5/15

N2 - A monoclinic ferroelectric phase with space group Pm has been discovered in lead-free (K 0.5Na 0.5)NbO 3-5LiNbO 3 solid solution ceramics by high energy synchrotron x-ray powder diffraction measurements. At ambient temperature, the lattice parameters of this monoclinic structure were (a m, b m, c m; β) (4.015 Å, 3.944 Å, 3.987 Å; 90.34 °). This monoclinic phase transformed to a tetragonal (P4mm) one on heating between 340 K and 360 K. The results demonstrate the presence of structurally bridging low symmetry monoclinic phase in (K 0.5Na 0.5)NbO 3-xLiNbO 3 solid solution system: indicating a means to achieve high piezoelectricity in Pb-free systems via domain engineering. © 2012 American Institute of Physics.

AB - A monoclinic ferroelectric phase with space group Pm has been discovered in lead-free (K 0.5Na 0.5)NbO 3-5LiNbO 3 solid solution ceramics by high energy synchrotron x-ray powder diffraction measurements. At ambient temperature, the lattice parameters of this monoclinic structure were (a m, b m, c m; β) (4.015 Å, 3.944 Å, 3.987 Å; 90.34 °). This monoclinic phase transformed to a tetragonal (P4mm) one on heating between 340 K and 360 K. The results demonstrate the presence of structurally bridging low symmetry monoclinic phase in (K 0.5Na 0.5)NbO 3-xLiNbO 3 solid solution system: indicating a means to achieve high piezoelectricity in Pb-free systems via domain engineering. © 2012 American Institute of Physics.

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U2 - 10.1063/1.4716027

DO - 10.1063/1.4716027

M3 - RGC 21 - Publication in refereed journal

SN - 0021-8979

VL - 111

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

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ER -