Dielectric and piezoelectric properties of Mn-doped Na0.5K0.5NbO3 Single crystals grown by flux method

被引：39

作者：

Inagaki, Yumi ^{[1
]}

Kakimoto, Ken-ichi ^{[1
]}

机构：

[1] Nagoya Inst Technol, Grad Sch Engn, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

APPLIED PHYSICS EXPRESS | 2008年 / 1卷 / 06期

关键词：

D O I：

10.1143/APEX.1.061602

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Lead-free piezoelectric Mn-doped Na0.5K0.5NbO3 (NKN) single crystals have been fabricated by self flux method using KF-NaF eutectic composition. The color of the obtained crystals was different depending on the doped Mn-chemicals. The large-sized single crystals with crystal face of orthorhombic (110) were obtained by optimized heal-treatment condition of the holding time at 1050 and 950 degrees C of 5 h and the cooling rate of 0.25 degrees C/min, and their piezoelectric properties were successfully measured by a resonance-anti resonance method. The piezoelectric strain constant (d(33)) of 0.5 mol% Mn-doped NKN single crystal was 161 pC/N, and the longitudinal electro-mechanical coupling factor (k(33)) showed 0.64. (C) 2008 The Japan Society of Applied Physics.

引用

页码：0616021 / 0616023

页数：3

共 17 条

[1] LATTICE-PARAMETERS AND TILTED OCTAHEDRA IN SODIUM-POTASSIUM NIOBATE SOLID-SOLUTIONS [J].