Near room-temperature multiferroic materials with tunable ferromagnetic and electrical properties

Near room-temperature multiferroic materials with tunable ferromagnetic and electrical properties
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具有可调铁磁和电性能的近室温多铁材料

DOI:
10.1038/ncomms5021
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发表时间:
2014-05
影响因子:
16.6
通讯作者:
L. Bellaiche
L. Bellaiche
中科院分区:
综合性期刊1区
文献类型:
--
作者:
H.J. Zhao;W. Ren;Y.R. Yang;J. Iniguez;X.M. Chen;L. Bellaiche

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对室温下具有铁电和铁磁特性的多铁性材料的追求继续受到新型器件的承诺的推动。此外,能够调整电极化和顺磁到铁磁转变温度构成了另一个具有基础和技术重要性的当前研究方向。在这里,我们报告的第一性原理为基础的预测的一类特定的材料,即R2 NiMnO 6/La 2NiMnO 6超晶格,其中R是一个稀土离子,表现出的电极化和强铁磁秩序在室温附近,其电气和铁磁性能可以通过调整的化学压力和/或外延应变。对第一原理结果的分析自然解释了这些高度期望的特征的起源。
The quest for multiferroic materials with ferroelectric and ferromagnetic properties at room temperature continues to be fuelled by the promise of novel devices. Moreover, being able to tune the electrical polarization and the paramagnetic-to-ferromagnetic transition temperature constitutes another current research direction of fundamental and technological importance. Here we report on the first-principles-based prediction of a specific class of materials—namely, R2NiMnO6/La2NiMnO6superlattices where R is a rare-earth ion—that exhibit an electrical polarization and strong ferromagnetic order near room temperature, and whose electrical and ferromagnetic properties can be tuned by means of chemical pressure and/or epitaxial strain. Analysis of the first-principles results naturally explains the origins of these highly desired features.
DOI: 10.1103/physrevb.88.014104
发表时间: 2013-07-11
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
Bellaiche, L.;Iniguez, Jorge
通讯作者: Iniguez, Jorge
DOI: 10.1016/j.jssc.2004.02.022
发表时间: 2004-07-01
影响因子: 3.3
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化学压力、失配应变和静水压力对稀土正铬酸盐结构和磁性行为的影响
DOI: 10.1088/0953-8984/25/38/385604
发表时间: 2013-09
期刊: Journal of Physics: Condensed Matter
影响因子: --
作者:
Zhao, Hong Jian;Ren, Wei;Chen, Xiang Ming;Bellaiche, L.
通讯作者: Bellaiche, L.
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发表时间: 2011
期刊: Nature
影响因子: 64.8
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