BaFe9LiO15: a new layered antiferromagnetic ferrite.

BaFe9LiO15: a new layered antiferromagnetic ferrite.
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BaFe9LiO15:一种新型层状反铁磁铁氧体。

DOI:
10.1021/ic302433a
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发表时间:
2013
影响因子:
4.6
通讯作者:
M. Rosseinsky
M. Rosseinsky
中科院分区:
化学2区
文献类型:
--
作者:
Tao Yang;A. Daoud;Michael F. Thomas;J. Claridge;M. Rosseinsky

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新的Fe(3+)氧化物BaFe9LiO15与磁阻挫材料BaV10O15是同构的,采用基于紧密堆积的纯氧化物层和BaO7层的堆叠的结构。中子衍射和穆斯堡尔谱表明BaFe9LiO15是长程反铁磁有序的,其Néel温度为460 K。反铁磁耦合铁磁平面的磁有序通过Fe(3+)阳离子之间的90°和180°超交换相互作用而稳定,取代了在仅t(2g)系统中观察到的受抑面内直接交换。
The new Fe(3+) oxide BaFe9LiO15 is isostructural with the magnetically frustrated material BaV10O15, adopting a structure based on the stacking of close-packed pure oxide and BaO7 layers. Neutron diffraction and Mössbauer spectroscopy shows that BaFe9LiO15 is long-range antiferromagnetically ordered with a Néel temperature of 460 K. The magnetic ordering of antiferromagnetically coupled ferromagnetic planes is stabilized by 90° and 180° superexchange interactions between the Fe(3+) cations that supersede the frustrated in-plane direct exchange observed in t(2g)-only systems.
DOI: 10.1103/physrevlett.94.137201
发表时间: 2005-04-08
影响因子: 8.6
作者:
Kimura, T;Lawes, G;Ramirez, AP
通讯作者: Ramirez, AP
DOI: 10.1038/nmat2826
发表时间: 2010-10-01
期刊: NATURE MATERIALS
影响因子: 41.2
作者:
Kitagawa, Yutaro;Hiraoka, Yuji;Kimura, Tsuyoshi
通讯作者: Kimura, Tsuyoshi