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
Engineering, Electrical & Electronic
Chuyu Song, Kaixin Guo, Xu Wang, Ruirui Cui, Chaoyong Deng
Summary: Multiferroic materials, such as the three-layer heterojunction studied in this work, exhibit excellent ferroelectricity, ferromagnetism, and magnetoelectric coupling properties. The maximum in-plane magnetoelectric coupling coefficient reached a value of approximately 55 mV cm(-1) Oe(-1) at 630 Oe, demonstrating strong potential for use in modern multifunctional devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Sukhendu Sadhukhan, Abhik S. Mahapatra, Ayan Mitra, Pabitra K. Chakrabarti
Summary: Nanocrystalline holmium orthoferrite (HoFeO3) was synthesized using the chemical sol-gel technique. Structural investigation and magnetization measurements revealed its multiferroic behavior, establishing its candidacy for multiferroic applications in M-E devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
S. Shankar, O. P. Thakur, M. Jayasimhadri
Summary: Multiferroic composites of (1-x)NdMnO3 - (x)BaTiO3 show distinct peaks of orthorhombic NdMnO3 and tetragonal BaTiO3 with improved conducting nature and giant dielectric behavior in NMO-20BT composite. Impedance measurements confirm improved resistivity and thermally activated non-Debye type conduction behavior in NMO-BT composites. Enhanced remnant magnetization and improved magnetoelectric coupling due to lattice stability establish multiferroism in NMO-BT composites.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
K. C. Dhanyaprabha, Bibin Jacob, Manoj Mohan, Imaddin A. Al-Omari, Salim H. Al-Harthi, Myo T. Z. Myint, Hysen Thomas
Summary: Lead-free multiferroic magnetoelectric mixed and core shell composites of BaTiO3 and NiFe2O4 were synthesized by a two-step process. The structural, morphological, electrical, magnetic, and dielectric properties of the samples were investigated. XRD-Rietveld refinement confirmed the co-existence of two phases in the composite. The enhanced remanent polarization of the core shell composite indicates the formation of a core shell structure. The magnetoelectric coupling studies on the core-shell system showed enhancement due to the well-defined interface between the two phases, making it possible for applications in magnetoelectric sensors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Gowher Hameed Rather, Mohd Ikram
Summary: By fabricating particulate multiferroic composites, the study shows that the magnetoelectric effect depends on factors such as the mass fraction of the magnetic phase and crystallite size in the composites. Dy3+ ions were identified as potential candidates to enhance dielectric constant, with the Mott theory establishing a hopping conduction mechanism.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Dhiren K. Pradhan, Hari Sankar Mohanty, Shalini Kumari, Krishnamayee Bhoi, Nan Tang, Ravikant, M. M. Rahaman, Dillip K. Pradhan, Ashok Kumar, Dustin A. Gilbert, Philip D. Rack
Summary: This study investigated the structural, electronic, magnetic, and magnetoelectric coupling of BaTiO3 ceramics doped with 3.5, 5, and 7.5% cobalt. The findings suggest that increasing cobalt content decreases tetragonality ratio, lowers ferroelectric transition temperature, and alters electrical properties, leading to ferromagnetic ordering and significant magnetoelectric coupling in the 7.5% cobalt-doped samples.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Guiyun Sun, Mengshuang Lan, Yulin Zhang, Siqi Zhong, Huan Li, Chen Chen, Keju Ren, Yiwen Ding, Xiaoling Deng, Rongli Gao, Wei Cai, Chunlin Fu, Gang Chen, Zhenhua Wang, Xiang Lei
Summary: This paper investigates the settling stability and magnetoelectric properties of CoFe2O4@BaTiO3 multiferroic liquids with different CoFe2O4 particle morphologies prepared by ball milling method. The study found that as the CFO particle morphology changed, both the residual magnetization intensity and saturation magnetization intensity of the multiferroic liquids increased gradually. The magnetoelectric coupling coefficient was found to be the largest when CFO morphology was rectangular. The study provides insights into improving the magnetoelectric coupling effect of multiferroic materials and opens up new possibilities for further research in this area.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Physics, Condensed Matter
Naveen Kumar, Hemant Singh, Satyendra Prakash Pal, Sonu Sarraf, K. L. Yadav, Amit Kumar
Summary: BiFeO3 is an attractive multiferroic ceramic for device application. The study calculated the magnetoelectric coupling coefficient of single-phase BiFeO3 ceramic using theoretical method instead of direct measurement of voltage. An applied magnetic field raises the capacitance of the pellet of BiFeO3, which gives the values of magnetoelectric coupling coefficient.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Engineering, Electrical & Electronic
Manoj Baloni, Ram Chhavi Sharma, Hemant Singh, Bushra Khan, Manoj K. Singh, Prakash Chandra Sati, Meera Rawat, Vikas N. Thakur, Ashok Kumar, R. K. Kotnala
Summary: The solid solution 0.7Bi(1-x)Nd(x)FeO(3)-0.3PbTiO(3) (BNFPT)(x) with varying x values has been synthesized successfully using solid-state reaction technique. The influence of Nd substitution on the structural, dielectric, ferroelectric, magnetic, and magneto-electric properties has been studied. The material demonstrates high dielectric permittivity, low tangent loss, and magneto-electric coupling.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
D. Padmapriya, D. Dhayanithi, M. T. Rahul, Nandakumar Kalarikkal, N. Giridharan
Summary: This article systematically studied room-temperature magnetoelectric coupling in 0-3 particulate and 2-2 laminated composite structures, showing significant variations in electrical polarization and magnetization parameters in composite samples compared to pristine BTO and NFO. The perceived strain-mediated magnetoelectric coupling is strongly dependent on the relative mass ratio of BTO and NFO in both the particulate and laminated structures. An enhanced magnetoelectric coefficient of 25.23 mV/cm.Oe was achieved for the sandwiched-laminated structure of (1-x)BaTiO3 and (x)NiFe2O4 with x=0.45 at an applied magnetic field of 1.34 KOe.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
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
Materials Science, Multidisciplinary
Toni Buttlar, Stefan G. Ebbinghaus
Summary: The study successfully synthesized magnetoelectric Co/BaTiO3 composites using reduction and sintering techniques, achieving seamless embedding of ferromagnetic Co in the ferroelectric BaTiO3 matrix. Complex magnetoelectric effects and temperature-dependent phase transitions of BaTiO3 were observed.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Adrian Begue, Miguel Ciria
Summary: This study demonstrates a structure with a giant magnetoelectric coupling coefficient, showing a value of 15 x 10(-6) s m(-1) at room temperature, which is a 2-fold increment over the previous highest value. The structure can switch the spatial orientation of the magnetization vector with the application of an electric field and exhibits switchable uniaxial magnetoelastic anisotropy, making it ideal for low-energy-consuming spintronic applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
You Ba, Shihao Zhuang, Yike Zhang, Yutong Wang, Yang Gao, Hengan Zhou, Mingfeng Chen, Weideng Sun, Quan Liu, Guozhi Chai, Jing Ma, Ying Zhang, Huanfang Tian, Haifeng Du, Wanjun Jiang, Cewen Nan, Jia-Mian Hu, Yonggang Zhao
Summary: Our work demonstrates the electric-field control of skyrmions through strain-mediated magnetoelectric coupling in ferromagnetic/ferroelectric multiferroic heterostructures. Experimental results show non-volatile creation and annihilation of multiple skyrmions, indicating potential for more energy-efficient spintronics.
NATURE COMMUNICATIONS
(2021)