Article
Nanoscience & Nanotechnology
Svetislav Mijatovic, Stefan Graovac, Djordje Spasojevic, Bosiljka Tadic
Summary: The connection between the architecture of coupled ferromagnetic and antiferromagnetic layers and the emergent hysteresis loop phenomena is revealed through low-temperature simulations. The number and characteristics of magnetisation plateaus in the hysteresis loop depend on the antiferromagnetic layer thickness, while the interlayer coupling determines the coercive field values. These findings shed new light on tuneable hysteresis loop properties.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Polymer Science
Liudmila A. Makarova, Danil A. Isaev, Alexander S. Omelyanchik, Iuliia A. Alekhina, Matvey B. Isaenko, Valeria V. Rodionova, Yuriy L. Raikher, Nikolai S. Perov
Summary: Multiferroics are materials that exhibit unique properties under the influence of magnetic and electric fields, achieved through a combination of ferromagnetic and ferroelectric particles. In soft polymer matrices, the separation of particles results in a more complex multiferroic coupling compared to solid composites.
Article
Physics, Applied
Dier Feng, Ziye Zhu, Xiaofang Chen, Jingshan Qi
Summary: The study highlights the importance of magnetoelectric coupling in understanding physics and applications, proposing a novel heterostructure design with potential magnetic and electrical property modifications. The results suggest that such structures could serve as a strategy for designing spin-current-based nonvolatile memory structures.
APPLIED PHYSICS LETTERS
(2021)
Review
Chemistry, Physical
Ganesha Channagoudra, Vijaylakshmi Dayal
Summary: This paper emphasizes the progress on magnetoelectric coupling and the impact of charge and strain in composite heterostructures. The direct and converse magnetoelectric effect on improving the magnetoelectric coefficient is discussed. Furthermore, a brief overview of devices based on multiferroic magnetoelectric materials and their future perspectives is presented.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Cristian M. Teodorescu
Summary: This study revisits Kittel's theory of ferromagnetic domains in thin films and extends it to two-dimensional domain landscapes. The most stable structure for thin films with perpendicular magnetic anisotropy is found to be one-dimensional domains, while for in-plane magnetized thin films, the domain size depends on the film thickness and stripe lateral size. The hysteresis curves exhibit different two-dimensional or one-dimensional structures depending on the magnetization level.
RESULTS IN PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Hannes Dahlberg, Anton E. O. Persson, Robin Athle, Lars-Erik Wernersson
Summary: The ferroelectric-antiferroelectric transition in Hf1-xZrxO2 (HZO) is demonstrated in a metal-ferroelectric-semiconductor stack based on InAs for the first time. The integration of ferroelectric thin films in nonvolatile operations is highly relevant for future electronic devices. The increase in Zr fraction leads to enhanced nonvolatility and a transition from ferroelectric to antiferroelectric behavior.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Cristian M. Teodorescu
Summary: In 1946 and 1949, Charles Kittel proposed a simple model for the size of ferromagnetic domains that is still widely used nowadays. This work revisits Kittel's theory, providing a more detailed demonstration of the main assumptions utilized. The validity limits of Kittel's scaling law for domain widths and the extension of the model to samples with non-vanishing net magnetization are derived. The introduction of the demagnetization factor associated with the finite size of the film is also discussed.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
G. K. Sahu, S. Behera, V Senthil, T. Badapanda
Summary: This study investigates the impact of Dy doping on the structure and properties of Sr(Bi1-xDyx)(2)Ta2O9 ceramics prepared by mixed oxide process. The results show that Dy doping leads to a reduction in transition temperature and relative permittivity, as well as a decrease in residual polarization and coercive field. Impedance spectroscopy reveals the electrical contributions from both grains and grain boundaries in the doped ceramics, and a non-Debye type relaxation mechanism is observed. The ac conductivities variation follows Jonscher's power law, suggesting a conduction mechanism governed by the correlated barrier-hopping model.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2022)
Article
Crystallography
Shalendra Kumar, Kavita Kumari, Mohammad Rizwan Khan, Maqsood Ahmad Malik, Rajesh Kumar, Saurabh Dalela, Bon Heun Koo
Summary: Bi1.05Fe1-xMnxO3 nanoparticles were successfully synthesized, and their structural, ferroelectric, optical, and magnetic properties were investigated. The magnetic properties showed different trends with an increase in Mn concentration, suggesting potential applications.
Article
Materials Science, Ceramics
Xinger Zhao, Zhongqiang Hu, Jingen Wu, Ting Fang, Yaojin Li, Yuxin Cheng, Yifan Zhao, Mengmeng Guan, Dan Xian, Chenying Wang, Qi Mao, Bin Peng, Ren-Ci Peng, Ziyao Zhou, Zhiguang Wang, Zhuang-De Jiang, Ming Liu
Summary: The study presents the vector analysis of the electric field-driven antiparallel magnetic domain evolution in FeCoSiB/PMN-PT(011) multiferroic heterostructures, demonstrating the energy minimization process with uniaxial strains induced by E-fields. Additionally, it shows that magnetic domains can be switched to both 0 degrees and 180 degrees easy directions simultaneously, leading to antiparallel magnetization distribution in ferromagnetic/ferroelectric heterostructures.
JOURNAL OF ADVANCED CERAMICS
(2021)
Article
Materials Science, Multidisciplinary
Shereef A. Fareed, Makram Ibrahim, Ahmed E. Hannora, M. M. El-Desoky
Summary: Nano-crystalline bismuth manganese oxide Bi2Mn4O10 was prepared by mechanochemical technique and subsequently heat treated. The experiment revealed the crystal structure, variation of crystallite size and micro-strain with milling time, as well as the magnetic parameters, electrical conductivity and dielectric parameters at different temperatures and frequencies.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Crystallography
G. K. Sahu, S. Behera, S. R. Mishra
Summary: Yttrium-modified bismuth-layered ferroelectric SrBi2Ta2O9 compounds were prepared through a mixed oxide route, and their structural, dielectric, ferroelectric, and conductivity properties were investigated for different compositions of Y. It was found that the materials exhibited enhanced ferroelectric properties with increased remnant polarization and decreased coercive field as the concentration of Y increased.
Article
Chemistry, Physical
S. Leelashree, P. D. Babu, S. N. Kaul, S. Srinath
Summary: This work reports on the magnetic, dielectric and structural properties of the nanocrystalline Lu1-xHoxFeO3 (x = 0.0 - 1.0) solid solutions. The substitution of Ho at the Lu site increases the ground state magnetic moment and the spin reorientation temperature and compensation temperature increase with the Ho concentration. The magnetocrystalline anisotropy essentially governs the coercive field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Chung Do Pham, Oanh Thi Mai Le, Minh Van Nguyen
Summary: In this study, the structural, morphological, ferroelectric, and ferromagnetic properties of low sintering-temperature lead-free particulate composites were investigated in detail. The XRD analysis demonstrated the formation of two parent materials in single crystal phases without impurities. It was found that the ferroelectric polarization, strain, and piezoelectric constant gradually decreased with the increase of NFO content in the composite, while the saturation magnetization and remanent magnetization in the M-H hysteresis loop measurements improved, indicating an increase in ferromagnetism of the composite.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Engineering, Electrical & Electronic
P. Josely Jose, Urjitsinh Rathod, Chirag Savaliya, Sadaf Jethva, Akshay Panchasara, Savan Katba, Mukesh Keshvani, Megha Vagadia, Ashish Ravalia
Summary: By characterizing the Y and Mn co-doped Bi0.9La0.1FeO3 system, the changes in structure, magnetic, ferroelectric, and dielectric properties are understood. The study reveals that Y and Mn co-doping can modulate the structural, magnetic, and ferroelectric properties of the material, while also enhancing the dielectric performance.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
