Induced noncollinear magnetic order of Nd3+ in NdNiO3 observed by resonant soft x-ray diffraction
Induced noncollinear magnetic order of Nd3+ in NdNiO3 observed by resonant soft x-ray diffraction
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DOI：
10.1103/physrevb.77.115138
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发表时间：
2008-03-01
影响因子：
3.7
通讯作者：
Hammerl, G.
中科院分区：
文献类型：
--
作者：
Scagnoli, V.;Staub, U.;Hammerl, G.
在NdNiO（3）外延膜上进行了Nd M边缘处的软X射线共振磁衍射，以研究金属-绝缘体转变以下的Nd离子的磁有序。由Ni磁矩引起的非共线磁结构最好地描述了（1/2，0，1/2）反射的方位角依赖性。这证实了在Ni L边缘进行的软X射线衍射实验观察到的Ni自旋结构，提供了NdNiO（3）中没有低于金属-绝缘体转变的轨道级的电荷双折射的进一步证据。
Soft x-ray resonant magnetic diffraction at the Nd M edges was performed on a NdNiO(3) epitaxial film to investigate the magnetic ordering of the Nd ions below the metal-insulator transition. A noncollinear magnetic structure induced by the Ni magnetic moments best describes the azimuthal angle dependency of the (1/2, 0, 1/2) reflection. This confirms the Ni spin structure observed with soft x-ray diffraction experiments performed at the Ni L edge, providing further evidence of charge disproportionation without orbital order below the metal-insulator transition in NdNiO(3).