Electronic and magnetic properties of FeCr2O4 nanoparticles by advanced synchrotron based soft X-ray magnetic circular dichroism

被引：7
作者：
Singh, Abhishek [1 ]
Dawn, Riya [1 ]
Verma, Virendra Kumar [2 ]
Panda, Deepankar [3 ]
Sahoo, Santosh Kr [3 ]
Kumar, Kundan [4 ]
Singh, Vijay Raj [1 ]
机构：
[1] Cent Univ South Bihar, Dept Phys, Gaya 824236, Bihar, India
[2] VIT AP Univ, Dept Phys, AP Secretariat, Amaravati 522237, Andhra Pradesh, India
[3] Natl Inst Technol, Dept Met & Mat Engn, Rourkela 769008, India
[4] Ranchi Univ, Dept Phys, Ranchi 834008, India
来源：
PHYSICA B-CONDENSED MATTER | 2022年 / 647卷
关键词：
X-ray absorption spectroscopy; Spinel oxide; Orbital magnetic moment; Spin magnetic moment; XRD and Nano-particles;
D O I：
10.1016/j.physb.2022.414373
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Multifunctional materials are now being considered for a variety of technical uses. The iron-chromite spinel FeCr2O4 NPs generated by the sol-gel process has been studied experimentally in this paper. The material crystallized into a cubic form, according to structural analysis based on x-ray diffraction. The Vibrating Sample Magnetometer, Soft-x-ray absorption spectroscopy (XAS) and soft-x-ray magnetic circular dichroism (XMCD) were used to explore the electronic and magnetic structures of FeCr2O4 NPs. Cr ions have trivalent Cr3+ and Fe ions have divalent Fe2+ states present here. The Fe 3d states have a high degree of hybridization with the O 2p states. The Fe and Cr 2p XMCD analysis shows antiparallel alignment of Cr and Fe spins, as well as remarkable hybridization of Fe 3d and O 2p electrons.
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页数：7
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