Journal ArticleDOI
Effect of Reduced Particle Size on the Magnetic Properties of Chemically Synthesized BiFeO3 Nanocrystals
TLDR
In this paper, the effect of reduction in particle size on the temperature dependent magnetization of chemically synthesized BiFeO3 nanocrystals with average grain size of 55 nm was reported.Abstract:
Here, we report the effect of reduction in particle size on the temperature dependent magnetization of chemically synthesized BiFeO3 nanocrystals with average grain size of 55 nm. The X-ray photoelectron spectroscopy results show a significant broadening of binding energy peaks associated to Fe3+ 2p3/2 core levels due to the reduced size. Additionally, due to the nanosize effect, the M-H loops show a significant coercivity starting from 390 K with an anomaly located in the vicinity of 150 K in our Hc vs T as well as Mr/Ms(50 kOe) vs T curves. At this temperature, both Hc and Mr/Ms(50 kOe) undergo minima. Additionally, our results for the first time show the evidence of existence of a low temperature anomaly due to spin-glass transition in the range from 40−44 K in the field cooled magnetization curves. In bulk single crystals, this transition is reported to be situated at around 50 K, however, this transition remained so far undiscovered in the recent studies on BiFeO3 nanoparticles due to the insufficien...read more
Citations
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Journal ArticleDOI
Multiferroic bismuth ferrite-based materials for multifunctional applications: Ceramic bulks, thin films and nanostructures
TL;DR: A comprehensive review on the progress of BFO-based materials made in the past fifteen years in the different forms of ceramic bulks, thin films and nanostructures, focusing on the pathways to modify different structures and to achieve enhanced physical properties and new functional behavior is provided in this paper.
Journal ArticleDOI
Harvesting the Vibration Energy of BiFeO3 Nanosheets for Hydrogen Evolution
Huilin You,Huilin You,Zheng Wu,Zheng Wu,Luohong Zhang,Yiran Ying,Yan Liu,Linfeng Fei,Xinxin Chen,Yanmin Jia,Yaojin Wang,Feifei Wang,Sheng Ju,Jinli Qiao,Chi Hang Lam,Haitao Huang +15 more
TL;DR: The observed piezo-catalytic properties of BFO nanosheets pave the way towards a non-toxic, highly efficient and sustainable technology for hydrogen generation or dye decomposition through harvesting waste vibration energy from the environment.
Journal ArticleDOI
Peculiar magnetism of BiFeO3 nanoparticles with size approaching the period of the spiral spin structure
Fengzhen Huang,Zhijun Wang,Xiaomei Lu,Junting Zhang,Kangli Min,Weiwei Lin,Ruixia Ti,Tingting Xu,Ju He,Chen Yue,Jinsong Zhu +10 more
TL;DR: It is found that a structural anomaly arises for the particles with size close to the 62 nm period of the spiral modulated spin structure, which induces an obviously increased ferromagnetism and a clue to the magnetic structure at nanoscale is provided.
Journal ArticleDOI
Magnetic, Ferroelectric, and Magnetocapacitive Properties of Sonochemically Synthesized Sc-Doped BiFeO3 Nanoparticles
TL;DR: In this paper, the synthesis of undoped and Sc3+-doped BiFeO3 nanoparticles using the sonochemical technique was reported, where the substitution of Sc ions for Bi enhances the ferromagnetic as well as ferroelectric properties of this system.
Journal ArticleDOI
Structural, magnetic, and electrical properties of Gd-doped BiFeO 3 nanoparticles with reduced particle size
Gurmeet Singh Lotey,N. K. Verma +1 more
TL;DR: In this paper, the significant effects of size and Gd-doping on structural, electrical, and magnetic properties have been investigated, and the possible origin of enhancement in these properties has been explained on the basis of dopant and its concentration, phase purity, small particle, and grain size.
References
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Journal ArticleDOI
Epitaxial BiFeO3 multiferroic thin film heterostructures.
Jian Wang,Jeffrey B. Neaton,Haimei Zheng,Valanoor Nagarajan,Satishchandra Ogale,B. T. Liu,Dwight Viehland,V. Vaithyanathan,Darrell G. Schlom,Umesh V. Waghmare,Nicola A. Spaldin,Karin M. Rabe,Manfred Wuttig,Ramamoorthy Ramesh +13 more
TL;DR: Enhanced polarization and related properties in heteroepitaxially constrained thin films of the ferroelectromagnet, BiFeO3, and combined functional responses in thin film form present an opportunity to create and implement thin film devices that actively couple the magnetic and ferroelectric order parameters.
Journal ArticleDOI
Physics and Applications of Bismuth Ferrite
Gustau Catalan,James F. Scott +1 more
TL;DR: In this paper, the authors summarize both the basic physics and unresolved aspects of BiFeO3 and device applications, which center on spintronics and memory devices that can be addressed both electrically and magnetically.
Journal ArticleDOI
Investigation of multiplet splitting of Fe 2p XPS spectra and bonding in iron compounds
TL;DR: In this paper, the authors investigated the usefulness of calculated multiplet peaks to fit high-resolution iron 2p3/2 spectra from high-spin compounds. And they found that the multiplets were found to fit most spectra well, particularly when contributions attributed to surface peaks and shake-up satellites were included.
Journal ArticleDOI
Electrical control of antiferromagnetic domains in multiferroic BiFeO3 films at room temperature.
T. Zhao,T. Zhao,Andreas Scholl,F. Zavaliche,Kunwoo Lee,M. Barry,A. Doran,M. P. Cruz,M. P. Cruz,Ying-Hao Chu,Claude Ederer,Nicola A. Spaldin,R. R. Das,D. M. Kim,Seung Hyub Baek,Chang-Beom Eom,Ramamoorthy Ramesh +16 more
TL;DR: This work demonstrates the first observation of electrical control of antiferromagnetic domain structure in a single-phase multiferroic material at room temperature with high resolution images, indicating a strong coupling between the two types of order.
Journal ArticleDOI
Size-Dependent Magnetic Properties of Single-Crystalline Multiferroic BiFeO3 Nanoparticles
Tae-Jin Park,Georgia C. Papaefthymiou,Arthur J. Viescas,and Arnold R. Moodenbaugh,Stanislaus S. Wong +4 more
TL;DR: As-prepared, single-crystalline bismuth ferrite nanoparticles show strong size-dependent magnetic properties that correlate with increased suppression of the known spiral spin structure with decreasing nanoparticle size and uncompensated spins and strain anisotropies at the surface.