Hybrid Multiferroic Nanostructure with Magnetic-Dielectric Coupling

被引：53

作者：

Narayanan, T. N. ^{[2
]}

Mandal, B. P. ^{[3
]}

Tyagi, A. K. ^{[3
]}

Kumarasiri, A. ^{[1
]}

Zhan, Xaiobo ^{[2
]}

Hahm, Myung Gwan ^{[2
]}

Anantharaman, M. R. ^{[4
]}

Lawes, G. ^{[1
]}

Ajayan, P. M. ^{[2
]}

机构：

[1] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48202 USA

[2] Rice Univ, Dept Mech Engn & Mat Sci, Houston, TX 77005 USA

[3] Bhabha Atom Res Ctr, Div Chem, Solid State Chem Sect, Bombay 400085, Maharashtra, India

[4] Cochin Univ Sci & Technol, Dept Phys, Kochi 682022, India

来源：

NANO LETTERS | 2012年 / 12卷 / 06期

关键词：

Multiferroic materials; ID heterostructure; barium titanate nanotubes; Co nanowires; spin-charge coupling; magnetocapacitance; MECHANISM;

D O I：

10.1021/nl300849u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The development of methods to economically synthesize single wire structured multiferroic systems with room temperature spin-charge coupling is expected to be important for building next-generation multifunctional devices with ultralow power consumption. We demonstrate the fabrication of a single nanowire multiferroic system, a new geometry, exhibiting room temperature magnetodielectric coupling. A coaxial nanotube/nanowire heterostructure of barium titanate (BaTiO3, BTO) and cobalt (Co) has been synthesized using a template-assisted method. Room temperature ferromagnetism and ferroelectricity were exhibited by this coaxial system, indicating the coexistence of more than one ferroic interaction in this composite system.

引用

页码：3025 / 3030

页数：6

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