Giant magnetodielectric effect and magnetic field tunable dielectric resonance in spinel MnZn ferrite

被引：70

作者：

Chen, Yajie ^{[1
,2
]}

Zhang, Xiao-Yu ^{[3
]}

Vittoria, Carmine ^{[1
,2
]}

Harris, V. G. ^{[1
,2
]}

机构：

[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA

[2] Northeastern Univ, Ctr Microwave Magnet Mat & Integrated Circuits, Boston, MA 02115 USA

[3] Suzhou Univ, Dept Phys, Suzhou 215006, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 10期

关键词：

dielectric polarisation; manganese compounds; permittivity; space charge; zinc compounds; FERROELECTRICITY; MULTIFERROICS;

D O I：

10.1063/1.3095498

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The sensitive response of the dielectric permittivity under the application of magnetic fields in Mn(0.60)Zn(0.40)Fe(2.12)O(4+delta) polycrystalline ferrite is presented. A magnetic field of 3.5 kOe induced a giant magnetodielectric {MD=[epsilon(')(H)-epsilon(')(0)]/epsilon(')(0)} response, of 1800% at f=7 MHz, at room temperature. The ferrite exhibits a large magnetic field-induced frequency response of 180 Hz/Oe. We suggest that this effect arises primarily from a spin-dependent space charge polarization mechanism in response to the application of dc magnetic fields.

引用

页数：3

共 27 条

[1]

Bichurin MI, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.134404

[2] Magnetic field dependence of the effective permittivity in BaTiO3/Ni nanocomposites observed via microwave spectroscopy [J].

Castel, V. ;

Brosseau, C. .

APPLIED PHYSICS LETTERS, 2008, 92 (23)

[3] Magnetocapacitance without magnetoelectric coupling [J].

Catalan, G .

APPLIED PHYSICS LETTERS, 2006, 88 (10)

[4] Microwave tunability in a GaAs-based multiferroic heterostructure: Co2MnAl/GaAs/PMN-PT [J].

Chen, Y. ;

Gao, J. ;

Lou, J. ;

Liu, M. ;

Yoon, S. D. ;

Geiler, A. L. ;

Nedoroscik, M. ;

Heiman, D. ;

Sun, N. X. ;

Vittoria, C. ;

Harris, V. G. .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (07)

[5] Large converse magnetoelectric coupling in FeCoV/lead zinc niobate-lead titanate heterostructure [J].

Chen, Yajie ;

Gao, Jinsheng ;

Fitchorov, Trifon ;

Cai, Zhuhua ;

Ziemer, K. S. ;

Vittoria, Carmine ;

Harris, V. G. .

APPLIED PHYSICS LETTERS, 2009, 94 (08)

[6] Giant magnetoelectric coupling and E-field tunability in a laminated Ni2MnGa/lead-magnesium-niobate-lead titanate multiferroic heterostructure [J].

Chen, Yajie ;

Wang, Jingmin ;

Liu, Ming ;

Lou, Jing ;

Sun, Nian X. ;

Vittoria, Carmine ;

Harris, Vincent G. .

APPLIED PHYSICS LETTERS, 2008, 93 (11)

[7] Multiferroics: a magnetic twist for ferroelectricity [J].

Cheong, Sang-Wook ;

Mostovoy, Maxim .

NATURE MATERIALS, 2007, 6 (01) :13-20

[8]

David Kingery W., 1976, INTRO CERAMICS, V17

[9] Multiferroic and magnetoelectric materials [J].

Eerenstein, W. ;

Mathur, N. D. ;

Scott, J. F. .

NATURE, 2006, 442 (7104) :759-765

[10] Analyses on the dispersion spectra of permeability and permittivity for NiZn spinel ferrites doped with SiO2 [J].

Han, Mangui ;

Liang, Difei ;

Deng, Longjiang .

APPLIED PHYSICS LETTERS, 2007, 90 (19)

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