Lead-free BiNaKTiO₃ (BNKT) ferroelectric films on Pt/TI/SIO₂/Si substrates were prepared via a sol-gel spin coating routine. The microstructures and multiferroic behaviors of the films were examined intimately as a function of the annealing time. A rise of annealing time enhanced the crystallization of the films via the perovskite structure. The multiferroic behavior, including simultaneously the magnetic and ferroelectric orders, was observed altogether the films. When the annealing time rose, ferroelectric and magnetic properties were found significantly increased. The remnant polarization (P), also as maximum polarization (P) respectively increased to the very best values of 11.5 µC/cm² and 40.0 µC/cm² under an applied electric field of 500 kV/cm. The saturated magnetization () of films increased to 2.3 emu/cm³ for the annealing time of 60 minutes. Oxygen vacancies, originating from the evaporation of metal ions during annealing at high temperatures are attributed to the explanation for ferromagnetism within the BNKT films.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1166/jnn.2021.19477 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Microstructure and Thermal Cyclic Behavior of FeNiCoAlTaB High-Entropy Alloy.
Materials (Basel)
January 2025
Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan.
This study investigates the grain morphology, microstructure, magnetic properties and shape memory properties of an FeNiCoAlTaB (at%) high-entropy alloy (HEA) cold-rolled to 98%. The EBSD results show that the texture intensities of the samples annealed at 1300 °C for 0.5 or 1 h are 2.
View Article and Find Full Text PDFAn Efficient 3D Convolutional Neural Network for Dose Prediction in Cancer Radiotherapy from CT Images.
Diagnostics (Basel)
January 2025
Institute of Information Technology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Hanoi 10072, Vietnam.
: Cancer is a highly lethal disease with a significantly high mortality rate. One of the most commonly used methods for treatment is radiation therapy. However, cancer treatment using radiotherapy is a time-consuming process that requires significant manual work from planners and doctors.
View Article and Find Full Text PDFInfluence of cobalt substitution in CoFeO nanoparticles on structural, morphological, cation distribution, optical and magnetic properties.
Heliyon
January 2025
Department of Physics, Isfahan University of Technology, Isfahan 84156-83111, Iran.
This paper presents the first-time synthesis of CoFe Co O nanoparticles (where x = 0.0, 0.1, 0.
View Article and Find Full Text PDFPhase Transition Process of Graphite to Diamond Induced by Monodispersed Tantalum Atoms at Ordinary Pressure.
Adv Sci (Weinh)
January 2025
College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
The transformation of graphite into diamond (2-10 nm) at ordinary pressure by monodispersed Ta atoms was recently reported, while the effects of Ta concentration on the transition process remain obscure. Here, by regulating the Ta wire treatment time, as well as the annealing time and temperature, larger diamond grians (5-20 nm) are successfully synthesized, and the transition process of graphite to diamond is revealed to vary with Ta concentration. Specifically, short Ta wire treatments (5-10 min) induce graphite to form a "circle" structure and transforms into diamond directly after annealing.
View Article and Find Full Text PDFAdvancing Oxygen Evolution Catalysis with Dual-Phase Nickel Sulfide Nanostructures.
Energy Fuels
January 2025
Department of Gaseous Electronics (F6), Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia.
The production, conversion and storage of energy based on electrocatalysis, mainly assisted by oxygen evolution reaction (OER), plays a crucial role in alkaline water electrolyzers (AWEs) and fuel cells. Nevertheless, the insufficient availability of highly efficient catalyst materials at a reasonable cost that overcome the sluggish electrochemical kinetics of the OER is one of the significant obstacles. Herein, we report a fast and facile synthesis of vapor phase deposition of dual-phase nickel sulfide (Ni-sulfide) using low-temperature annealing in the presence of HS and demonstrated as an efficient catalyst for OER to address the issues with sluggish electrochemical kinetics.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!