Study of potassium-sodium-niobate alloys: A combined experimental and theoretical approach

被引：28

作者：

Attia, J ^{[1
]}

Bellaiche, L

Gemeiner, P

Dkhil, B

Malic, B

机构：

[1] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

[2] Ecole Cent Paris, CNRS, Lab Struct Proprietes & Modelisat Solides, UMR 8580, F-92925 Chatenay Malabry, France

[3] Josef Stefan Inst, Ljubljana 1000, Slovenia

来源：

JOURNAL DE PHYSIQUE IV | 2005年 / 128卷

关键词：

D O I：

10.1051/jp4:2005128009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experimental and theoretical techniques are combined to investigate properties of the environmentally-friendly and technologically-promising (K0.5Na0.5)NbO3 (KNN) solid solutions. Two long-range ferroelectric phases of orthorhombic and tetragonal symmetry are reported above 250K. Furthermore, our dielectric measurements, X-ray data and simulations suggest an unusual formation of rhombohedral clusters within an orthorhornbic matrix at lower temperature.

引用

页码：55 / 60

页数：6

共 8 条

[1] STRUCTURAL PHASE-TRANSITIONS IN SODIUM-POTASSIUM NIOBATE SOLID-SOLUTIONS BY NEUTRON POWDER DIFFRACTION [J].