Multifunctional behaviour of mesoporous LiNbO3

被引：10

作者：

Banerjee, Shilpi ^{[1
,2
]}

Bhunia, Manas Kumar ^{[2
]}

Bhaumik, Asim ^{[2
]}

Chakravorty, Dipankar ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, MLS Prof Unit, Kolkata 700032, India

[2] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, India

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 05期

关键词：

HIGH-SURFACE-AREA; FERROELECTRICITY; FERROMAGNETISM;

D O I：

10.1063/1.3693041

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Mesoporous LiNbO3 nanoparticles with BET surface area 185 m(2) g(-1) were synthesized by using Pluronic P123 as soft template. The samples showed three functionalities, viz., photoluminescence, ferroelectricity, and ferromagnetism. Room temperature photoluminescence was observed at 390 nm wavelength due to oxygen vacancy. The mesoporous LiNbO3 showed ferromagnetic behavior at room temperature. Ferroelectric behavior of the samples was confirmed from the P-E hysteresis loop measurement. The samples showed a magneto-dielectric effect with the dielectric constant increasing by similar to 4.5% for an applied magnetic field of 10 kOe due to magnetostriction of the material which changed the lattice parameter to bring about an increase in the dipole moment of the unit cell. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3693041]

引用

页数：6

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