Coupled dynamics of polarization and magnetization in ferroelectric-magnetic layers

铁电磁层中极化和磁化的耦合动力学

• 批准号: 188443797
• 负责人: Dr. Alexander Sukhov
• 金额: --
• 依托单位: Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (HI ERN)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/188443797?language=en
• 关键词: Coupled; dynamics; polarization; magnetization; ferroelectric

This project is focused on novel materials that exhibit a coupled magnetic-ferroelectric order. The aim is to explore theoretically the combined dynamics of the polarization and the magnetization induced by time-dependent electric or magnetic fields. This will be achieved by employing a classical finite-temperature Landau-Lifshitz-Gilbert equation coupled to the Landau-Khalatnikov equation and also using Monte-Carlo methods. A particular attention is devoted to the switching behaviour of the electric polarization and of the magnetization via magnetic and electric fields, respectively. In addition, we will inspect the polarization switching via a spin-polarized current that acts with a spin torque on the magnetic component of the sample.

该项目的重点是新材料，表现出耦合的磁性铁电秩序。目的是从理论上探讨由含时电场或磁场引起的极化和磁化的组合动力学。这将通过采用经典的有限温度Landau-Lifshitz-吉尔伯特方程耦合到Landau-Khalatnikov方程，并使用蒙特-卡罗方法来实现。一个特别注意的是专门通过磁场和电场的电极化和磁化的切换行为，分别。此外，我们将通过自旋极化电流检查极化切换，该电流以自旋扭矩作用于样品的磁性成分。

项目成果

Finite-size effects on the magnetoelectric coupling in a ferroelectric /ferromagnetic structure revealed by ferromagnetic resonance

• DOI: 10.1051/epjconf/20147509001
• 发表时间: 2014
• 作者: A. Sukhov;P. Horley;C. Jia;L. Chotorlishvili;J. Berakdar

Dipole–Dipole Interaction in Arrays of Fe/FexOy Core/Shell Nanocubes Probed by Ferromagnetic Resonance

铁磁共振探测 Fe/FexOy 核/壳纳米立方体阵列中的偶极相互作用

• DOI: 10.1109/tmag.2014.2329814
• 发表时间: 2014
• 期刊: IEEE Transactions on Magnetics
• 影响因子: 2.1
• 作者: A. Sukhov;P.P. Horley;J. Berakdar;A. Terwey;R. Mecknestock;M. Farle
• 通讯作者: M. Farle

Influence of magnetoelectric coupling on electric field induced magnetization reversal in a composite unstrained multiferroic chain

• DOI: 10.1103/physrevb.85.054401
• 发表时间: 2012-02-01
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Horley, Paul P.;Sukhov, Alexander;Berakdar, Jamal
• 通讯作者: Berakdar, Jamal

Dynamics of localized modes in a composite multiferroic chain.

复合多铁链中局域模的动力学

• DOI: 10.1103/physrevlett.111.117202
• 发表时间: 2013
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: L. Chotorlishvili;R. Khomeriki;A. Sukhov;S. Ruffo;J. Berakdar
• 通讯作者: J. Berakdar

Piezoelectric control of the magnetic anisotropy via interface strain coupling in a composite multiferroic structure

通过复合多铁结构中的界面应变耦合压电控制磁各向异性

• DOI: 10.1209/0295-5075/99/17004
• 发表时间: 2012-05
• 期刊: EPL
• 影响因子: 1.8
• 作者: Chenglong Jia;Alex;er Sukhov;Paul P. Horley;Jamal Berakdar
• 通讯作者: Jamal Berakdar