Optical and magnetic properties of Sm-doped BiFeO3 nanoparticles around the morphotropic phase boundary region
Source abstract
Abstract
The crystal structure, photocatalytic activity, and ferromagnetic properties of Sm-substituted (Bi1−xSmxFeO3, x = 0.05, 0.10, 0.15, 0.20) nanoparticles were systematically investigated within the entire Sm substitution region. The morphotropic phase boundary (MPB) consisting of a rhombohedral phase, orthorhombic interim phase (Pna21), and orthorhombic phase with 0.1 ≤ x ≤ 0.2 is constructed and confirmed by x-ray diffraction and Raman spectra with new vibration modes at ∼310 cm−1. The photocatalytic activity and ferromagnetism are improved around the MPB region (x = 0.10). Meanwhile, the wasp-waisted hysteresis loops are present around the MPB region. Wasp-waisted hysteresis loops have the features of low hysteresis loss in low magnetic fields and are helpful in designing some multiferroic devices.
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Research context
OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University 1 , Kaifeng 475004, China
School of Physics and Electronic Information and Key Lab Electromagnet Transformat and, Detect Henan, Luoyang Normal College 2 , Henan, Luoyang 471022, People’s Republic of China
Funding
Innovative Research Team in Science and Technology in University of Henan Province · China Postdoctoral Science Foundation · The Program for Yong Teachers of Higher School in Henan Provinces · The Program for Cultivation of National Project in Luoyang Normal University · He Program for Excellent Team of Spectrum Technology and Application of Henan Province
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