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.

引用

页数：7

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