Article
Chemistry, Physical
Zedong Hu, Juanjuan Lu, Hongyi Dou, Jianan Shen, James P. Barnard, Juncheng Liu, Xinghang Zhang, Haiyan Wang
Summary: In this work, a unique anodic aluminum oxide (AAO) template was used to grow a thin Co seed layer and the following self-assembled metal-oxide (Co-BaTiO3) vertically aligned nanocomposite thin film layer. The researchers observed significant magnetic anisotropy and strong magneto-optical coupling properties, and successfully achieved the fabrication of high density perpendicular magnetic tunneling junction (p-MTJ). They also discovered a strong polar magneto-optical Kerr effect (MOKE), which inspires a novel optical-based reading method of the MTJ states.
Article
Materials Science, Multidisciplinary
Zhaochen Liu, Jiang Xiao, Jing Wang
Summary: This study explores the finite-size correction in axion insulator thin films by investigating the interplay between surface magnetization dynamics and the magnetoelectric response. The findings provide insights into a new class of electronic and spintronic applications of axion devices.
Article
Materials Science, Multidisciplinary
Mengmeng Guan, Jiaxuan Zhang, Haowen Tang, Qi Lu, Bin Peng, Ming Liu
Summary: A new method is established to characterize the transverse (in-plane) piezostrain of ferroelectric/piezoelectric thin films by using the inverse magnetoelectric coupling effect. The in-plane piezoelectric coefficient and piezoelectric strain of PZT thin films are measured by this method, demonstrating its potential for fully understanding the piezoelectric properties of ferroelectric/piezoelectric thin films.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Guohua Dong, Tian Wang, Haixia Liu, Yijun Zhang, Yanan Zhao, Zhongqiang Hu, Wei Ren, Zuo-Guang Ye, Keqing Shi, Ziyao Zhou, Ming Liu, Jingye Pan
Summary: In this study, Fe3O4/BaTiO3 nanopillar composites were successfully constructed to achieve magnetoelectric coupling effect. Well-ordered BaTiO3 nanopillar arrays were prepared through template-assisted pulsed laser deposition, and the Fe3O4 layer was coated on BaTiO3 nanopillar arrays using atomic layer deposition. The research results showed a significant thermally driven magnetoelectric coupling coefficient near the phase transition of BaTiO3.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
A. Plyushch, D. Lewin, A. Sokal, R. Grigalaitis, V. V. Shvartsman, J. Macutkevic, S. Salamon, H. Wende, K. N. Lapko, P. P. Kuzhir, D. C. Lupascu, J. Banys
Summary: Bulk BaTiO3-xCoFe2O4 (x = 0.1 - 0.6) magnetoelectric composites with high purity and excellent dielectric and magnetic properties were prepared using the phosphate bonded ceramics approach. The dielectric properties were influenced by composition-dependent relaxations and anomalies at different frequencies, while the magnetic properties were limited by the size of CoFe2O4 particles. The measured direct magnetoelectric coupling coefficient was higher than that of conventionally sintered ceramics and comparable to that of core-shell structures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Jun Zhang, Wuhong Xue, Tiancong Su, Huihui Ji, Guowei Zhou, Fengxian Jiang, Zhiyong Quan, Xiaohong Xu
Summary: The study focused on room-temperature multiferroic material GFO with ferrimagnetism, fabricating a thin film on a single-crystal substrate to demonstrate reversible and nonvolatile nanoscale magnetic domain reversal under purely electrical fields. The results showed a high potential for GFO thin film in next-generation magnetoelectric multifunctional devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Physics, Applied
Donghoon Kim, Marta D. Rossell, Marco Campanini, Rolf Erni, Josep Puigmarti-Luis, Xiang-Zhong Chen, Salvador Pane
Summary: The magnetoelectric effect in ME composites originates from the coupling between ferroelectric and ferromagnetic components, with substrate clamping diminishing the effect. By using fabrication techniques to control substrate clamping, enhanced ME coupling was observed in micro-patterned bilayer thin films compared to the original films. Site-dependent ME coupling within the microstructure was also observed, with larger coupling near the edge of the microstructure attributed to non-uniform substrate clamping and strain gradients in the BTO layer.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Hamed Sharifi Dehsari, Morteza Hassanpour Amiri, Kamal Asadi
Summary: Experimental realization of thin films with significant room-temperature magnetoelectric coupling coefficient α(ME) without an external DC magnetic field has been challenging. Here, large α(ME) of 750 +/- 30 mV Oe(-1) cm(-1) is achieved in multiferroic polymer nanocomposites (MPCs) thin films. The MPCs consist of PMMA-grafted cobalt-ferrite nanoparticles uniformly dispersed in piezoelectric polymer P(VDF-TrFE). Nanoparticle agglomeration is reduced by surface functionalization with PMMA, enabling the uniform dispersion of nanoparticles in submicrometer thin films. This research can promote the development of flexible and printable multiferroic electronic devices for sensing and memory applications.
Article
Chemistry, Multidisciplinary
Wenbo Zhao, Jieun Kim, Xiaoxi Huang, Lei Zhang, David Pesquera, Gabriel A. P. Velarde, Tanay Gosavi, Chia-Ching Lin, Dmitri E. Nikonov, Hai Li, Ian A. Young, Ramamoorthy Ramesh, Lane W. Martin
Summary: This study demonstrates a method to achieve low-voltage control of magnetism and describes a methodology for probing and quantifying magnetoelectric coupling. Through experiments, the magnetoelectric coupling coefficient is estimated to reach approximately 7 x 10(-8) s m(-1) at 325 K when applying a -0.75 V bias.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Ceramics
Min Zhang, Xun Zhou, Xu Wang, Chaoyong Deng
Summary: BaTiO3 (BTO) and NiFe composite films were grown on different substrates using magnetron sputtering. The films were characterized by XRD, ferroelectric analyzer, and other techniques, showing good surface quality and magnetoelectric coupling properties according to experimental and simulation results.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Anita Bagri, D. M. Phase, Ram Janay Choudhary
Summary: Artificial multiferroics with tunable magnetoelastic and magnetoelectric coupling offer potential for various device applications. In this study, we demonstrate the manipulation of magnetoelastic and magnetoelectric coupling in an epitaxial SrRuO3/BaTiO3 multiferroic heterostructure using polarized visible light illumination. The light-induced ferroelastic domain wall motion in BaTiO3 leads to changes in magnetic properties of the SrRuO3 layer. Additionally, we observed significant changes in the heterostructure when electrically biased, due to the modification of the interfacial magnetoelectric coupling. These findings provide a novel prospective for opto-spintronics device applications.
Article
Crystallography
Venkata Sreenivas Puli, Dhiren Kumar Pradhan, Gollapudi Sreenivasulu, Simhachalam Narendra Babu, Nandiraju Venkata Prasad, Kalpana Madgula, Douglas B. Chrisey, Ram S. Katiyar
Summary: The development of lead-free BaTiO3/NiFe2O4/BaTiO3 (BTO/NFO/BTO) trilayer structure thin films is significant for eco-friendly and implantable microelectromechanical systems (MEMS)-based devices. The deposited trilayer films show interesting properties such as high room temperature dielectric constant, magnetoelectric behavior, and a reasonably high saturation magnetization at room temperature. The tri-layered films exhibit interesting magnetoelectric coupling coefficient at room temperature.
Article
Materials Science, Composites
Yuanyuan Yao, Shaohua Jin, Dongxu Wang, Junfeng Wang, Dongze Li, Xijuan Lv, Qinghai Shu
Summary: This study developed a nanocomposite film with excellent electromagnetic interference (EMI) shielding properties by coating silver nanowires with polydopamine, attaching them to graphene, and loading magnetic particles. The resulting film showed flexible and fine EMI shielding performance in both GPS band and X band, making it a promising material for flexible electronics and electromagnetic countermeasure applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ramany Revathy, Nandakumar Kalarikkal, Manoj Raama Varma, Kuzhichalil Peethambharan Surendran
Summary: In this study, magnetoelectric composites of Fe3O4 and BaTiO3 were synthesized with 0-3 and 1-3 connectivity, showing the presence of exchange bias and an increasing trend of magnetoelectric coupling coefficients with higher BaTiO3 content in the investigated samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Lirong Wang, Qingye Lu, Xuejuan Lv, Yuchang Su
Summary: In this work, 0-3 type CoFe2O4-BaTiO3 nanocomposites were prepared by co-precipitation sintering process. The structure, dielectric, magnetic properties and magnetoelectric (ME) coupling effect of the nanocomposites were investigated. The results showed that the 0-3 connectivity in the nanocomposites hindered the growth of CoFe2O4, resulting in smaller particle size and larger interface area between CoFe2O4 and BaTiO3. The nanocomposites exhibited strong ME coupling effect, with the C40s sample having a maximum ME coupling coefficient of 587.3 mV/cm center dot Oe at 1.8 kHz.
CERAMICS INTERNATIONAL
(2023)
