Article
Physics, Applied
Athinarayanan Sundaresan, N. V. Ter-Oganessian
Summary: Over the last two decades, significant progress has been made in combining ferroelectricity and magnetism in the same material, particularly through the discovery of spin-induced ferroelectricity with strong coupling between magnetism and electric polarization, which is determined by the symmetries of the crystal lattice and magnetic structure.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Dariusz Bochenek, Przemyslaw Niemiec, Artur Chrobak, Piotr Guzdek
Summary: This paper analyzes the influence of hard and soft admixture on the functional properties of multiferroic ceramic composites. Two composite materials were synthesized via solid-state reaction route, with PZT-type materials as the ferroelectric component and nickel-zinc ferrite as the magnetic component. It is found that the type of doping (soft vs hard admixture) has significant effects on the dielectric, ferroelectric, electromechanical, magnetic, and magnetoelectric properties of the composites. PZT with a soft admixture shows advantages in terms of effective polarization and high magnetoelectric effect, while PZT with a hard admixture demonstrates better stability of physical parameters.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
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
Multidisciplinary Sciences
Louis Ponet, S. Artyukhin, Th. Kain, J. Wettstein, Anna Pimenov, A. Shuvaev, X. Wang, S. -w. Cheong, Maxim Mostovoy, Andrei Pimenov
Summary: This study demonstrates a method to reverse the electric polarization of multiferroic materials by applying and removing a magnetic field, which requires two cycles to bring the system back to its original configuration. During this process, the system visits four states with different magnetic configurations, with half of the spins undergoing unidirectional full-circle rotation in increments of about 90 degrees. Therefore, this material exhibits a peculiar magnetoelectric switching behavior that converts the variations of the magnetic field into circular spin motion.
Article
Chemistry, Physical
Sabeur Mansouri, Mohamed Balli, Serge Jandl, Aminat Oyiza Suleiman, Patrick Fournier, Sayed Hamad Bukhari, Joelle Margot, Mohamed Chaker
Summary: The spin-phonon coupling and magnetocaloric effect in polycrystalline GdMn2O5 were studied using Raman spectroscopy and isothermal magnetization curves. It was observed that the frequencies of 680 and 700 cm-1 modes showed anomalous temperature variations, indicating a strong spin-phonon coupling below the Neel temperature. The frequency deviation from standard temperature dependence was quantitatively explained by a simplified theoretical model. Additionally, a relatively large magnetic entropy change of Smax = 9.8 J/(kg K) was achieved with magnetic fields up to 70 kOe. The polycrystalline samples of GdMn2O5, with their low-cost fabrication and large electric polarisation, were found to be more suitable for possible cooperative magneto-electrocaloric refrigeration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
H. Wu, H. Ao, W. Li, Z. Zeng, R. Gao, C. Fu, G. Chen, X. Deng, Z. Wang, X. Lei, W. Cai
Summary: BST and CCFO nanopowders were prepared by different methods and used to create BST-CCFO multiferroic fluids with various mass ratios. Interestingly, the multiferroic fluid formed a chain structure under the external magnetic field, enhancing the magnetoelectric performance significantly.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Zhi Ming Hu, Jackie Li
Summary: Magnetoelectric materials combine ferroelectric and ferromagnetic phases to induce a giant magneto-electric coupling effect. This effect depends on the properties of the constituent phases, volume concentration, and interfacial conditions. By studying the nonlinear response of the composite materials, the overall effective coupling properties of multiferroic composites can be investigated.
MECHANICS OF MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Moein Adnani, Melissa Gooch, Liangzi Deng, Stefano Agrestini, Javier Herrero-Martin, Hung-Cheng Wu, Chung-Kai Chang, Taha Salavati-fard, Narayan Poudel, Jose Luis Garcia-Munoz, Samira Daneshmandi, Zheng Wu, Lars C. Grabow, Yen-Chung Lai, Hung-Duen Yang, Eric Pellegrin, Ching-Wu Chu
Summary: HoFeWO6 exhibits multiferroicity and magnetoelectric (ME) coupling, with electric polarization onset at 17.8 K and antiferromagnetic ordering. The compound shows metamagnetic behavior at low temperatures directly related to dielectric properties, with a magnetocapacitance (MC) effect observed. X-ray diffraction results confirm the noncentrosymmetric polar structure and suggest Fe3+ cations are antiferromagnetically ordered in a noncollinear fashion. The observed MC effect, change in polarization by magnetic field, and direct correspondence with magnetization support strong ME coupling in HoFeWO6.
Article
Materials Science, Multidisciplinary
Yu-Hong Lai, Pao -Wen Shao, Chang-Yang Kuo, Cheng-En Liu, Zhiwei Hu, Chen Luo, Kai Chen, Florin Radu, Yong-Jyun Wang, Junding Zheng, Chungang Duan, Chun-Fu Chang, Li Chang, Yi-Chun Chen, Sang-Wook Cheong, Ying-Hao Chu
Summary: This study investigates the modulation of magnetic and electric orders in magnetoelectric materials through quasi-static mechanical strain. It is found that mechanical bending can significantly enhance the magnetization of Cr2O3 film and adjust its electric polarization and magnetoelectric coupling. This work provides a comprehensive understanding of the relationship between strain and magnetic and electrical behaviors and opens new possibilities for combining magnetoelectric materials with flexible substrates.
Article
Materials Science, Ceramics
Fanqiang Lin, Chongsheng Wu, Qisheng Yin, Yuanming Lai, Yingli Liu
Summary: In this study, the effect of Ba substitution on the spiral magnetic structure and magnetoelectric effect in polycrystalline Z-type hexaferrites was systematically investigated. The results showed that Ba substitution significantly improved the magnetoelectric coupling coefficient and extended the magnetic field range for the appearance of magnetoelectric signals. These improvements were attributed to the decrease of Fe-O-Fe bond angle, reduction of cone angle in the transverse conical spin structure, and change in the distribution of magnetic Co ions caused by Ba substitution.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Chemistry, Physical
Manish Kumar, Arvind Kumar, Subhash Sharma, Ritesh Kumar Chourasia, Rakesh Kumar, Samiksha Dabas, Abhishek Singh, Avneesh Anshul
Summary: Multiferroic BiFeO3-NiO (BFO-NiO) nanocomposites were synthesized using sol-gel route and characterized for their multiferroic-magnetoelectric properties. The composite exhibited enhanced magnetism and exchange bias effect due to the interactions between antiferromagnetic and ferromagnetic exchange couplings. The temperature-dependent magnetic measurements showed a transition from superparamagnetic behavior to quantum superparamagnetic state at low temperature. The nanocomposites demonstrated considerable suitable for various device applications such as information storage, magnetic random access memory, and bio-sensing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Engineering, Electrical & Electronic
Chen Chen, Siqi Zhong, Guiyun Sun, Yulin Zhang, Yiwen Ding, Keju Ren, Huan Li, Rongli Gao, Xiaoling Deng, Wei Cai, Zhenhua Wang, Chunlin Fu, Xiang Lei, Gang Chen
Summary: Composite multiferroic materials, due to their unique magnetoelectric coupling effect, have significant potential in multifunctional devices. This study presents a novel composite multiferroic material system called multiferroic fluids, which are created by dispersing multiferroic particles in an insulating base fluid and exhibit a strong magnetoelectric coupling effect under external fields. The magnetoelectric coupling effect is achieved through the arrangement of multiferroic particles into chain-like structures under magnetic or electric fields, resulting in induced polarization. Based on their magnetoelectric and rheological properties, multiferroic fluids are believed to have potential applications in various fields such as magnetoelectric storage, sensors, and photovoltaics, but further research is needed.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Alireza Jalouli, Shenqiang Ren
Summary: Incorporating molecular magnets and molecular ferroelectrics allows for the achievement of magnetoelectric effect at room temperature, a topic of interest in materials science. Experimental results showed that applying an electric field to the composite material led to about 6% change in magnetization at room temperature, and a shift in the resonance magnetic field in ferromagnetic resonance measurement.
Article
Materials Science, Multidisciplinary
D. G. Farkas, D. Szaller, I Kezsmarki, U. Nagel, T. Room, L. Peedu, J. Viirok, J. S. White, R. Cubitt, T. Ito, R. S. Fishman, S. Bordacs
Summary: The magnetic-field dependence of THz absorption and nonreciprocal directional dichroism spectra of BiFeO3 was investigated, revealing optical selection rules of spin-wave excitations and the effects of in-plane magnetic fields on cycloidal q vectors. Changes in strength and frequency of spin-wave modes were observed with the orientation and length of the q vector, with experimental data compared to linear spin-wave theory to identify relevant spin-polarization coupling terms for the optical magnetoelectric effect.
Article
Materials Science, Multidisciplinary
Shumpei Fujii, Takamasa Usami, Yu Shiratsuchi, Adam M. Kerrigan, Amran Mahfudh Yatmeidhy, Shinya Yamada, Takeshi Kanashima, Ryoichi Nakatani, Vlado K. Lazarov, Tamio Oguchi, Yoshihiro Gohda, Kohei Hamaya
Summary: Research shows that electric-field control can be used to control the magnetization vectors of ferromagnetic electrodes in multiferroic heterostructures. By combining the ferromagnetic Heusler alloy Co2FeSi with the ferroelectric oxide Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT), nonvolatile and repeatable magnetization vector switchings can be achieved. This approach has the potential to reduce write power in spintronic memory architectures.
NPG ASIA MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
V. S. Rusakov, V. S. Pokatilov, A. S. Sigov, M. E. Matsnev, A. M. Gapochka, A. P. Pyatakov
Article
Physics, Applied
K. S. Antipin, T. T. Gareev, N. Myasnikov, E. P. Nikolaeva, A. P. Pyatakov
Summary: The paper demonstrates the emergence of magnetic domains in an iron garnet film at room temperature under the influence of an external electric field, with the nucleation of magnetic domains occurring with 90 degrees domain walls at both positively and negatively biased tips. The experimental and theoretical studies reveal the mechanism of electric field generation of the 90 degrees magnetic domain and its dependence on the domain wall's chirality.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Multidisciplinary
Xingen Liu, Alexander P. Pyatakov, Wei Ren
PHYSICAL REVIEW LETTERS
(2020)
Article
Biophysics
Mikhail N. Zharkov, Ekaterina P. Brodovskaya, Oleg A. Kulikov, Elena Gromova, Valentin P. Ageev, Aleksandra Atanova, Zhanna Kozyreva, Alexander M. Tishin, Alexander P. Pyatakov, Nikolay A. Pyataev, Gleb B. Sukhorukov
Summary: By utilizing modified polyelectrolyte microcapsules, researchers have achieved a high local concentration of bound magnetic materials, thereby enhancing the effectiveness of magnetic hyperthermia. The study found that magnetic microcapsules had a more significant cytotoxic effect on cells compared to MNPs freely suspended in solution, and induced cytotoxicity when exposed to an alternating magnetic field.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Engineering, Electrical & Electronic
N. Kostyuchenko, I. S. Tereshina, A. Andreev, M. Doerr, E. A. Tereshina-Chitrova, M. A. Paukov, D. Gorbunov, G. A. Politova, A. P. Pyatakov, A. Miyata, O. Drachenko, A. K. Zvezdin, O. Portugall
Summary: In this study, a comparative analysis of the magnetization behavior of four series of compounds was conducted, revealing a significant impact of hydrogenation on the critical field values and the exchange interaction parameter.
IEEE TRANSACTIONS ON MAGNETICS
(2021)
Article
Chemistry, Multidisciplinary
Mylla C. Ferreira, Bruno Pimentel, Vivian Andrade, Vladimir Zverev, Radel R. Gimaev, Andrei S. Pomorov, Alexander Pyatakov, Yulia Alekhina, Aleksei Komlev, Liudmila Makarova, Nikolai Perov, Mario S. Reis
Summary: By studying the relationship between the heating power and nanoparticle size in magnetic oxides, it was found that particles of intermediate size have the highest heat transfer efficiency in the heating mechanism.
Article
Materials Science, Multidisciplinary
N. Kostyuchenko, I. S. Tereshina, E. A. Tereshina-Chitrova, L. A. Ivanov, M. Paukov, D. Gorbunov, A. Andreev, M. Doerr, G. A. Politova, A. K. Zvezdin, S. V. Veselova, A. P. Pyatakov, A. Miyata, O. Drachenko, O. Portugall
Summary: This paper investigates the full magnetization process of ferrimagnetic intermetallic compounds and their hydrides using megagauss magnetic fields. Field-induced phase transitions from ferrimagnetic to forced-ferromagnetic state are observed, with a drastic decrease in critical transition fields in hydrogenated compounds due to substitution and hydrogenation effects. A comparative analysis of the magnetization behavior for the system Ho2Fe17-H is also performed.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Physics, Applied
Nan N. Liu, Alexander P. Pyatakov, Mikhail N. Zharkov, Nikolay A. Pyataev, Gleb B. Sukhorukov, Yulia A. Alekhina, Nikolai S. Perov, Yurii K. Gun'ko, Alexander M. Tishin
Summary: This study demonstrates a superquadratic dependence of Specific Absorption Rate (SAR) on a magnetic field by using Zn-Mn ferrite nanoparticles, offering the potential to achieve higher SAR values in biomedicine.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
N. N. Liu, A. P. Pyatakov, A. M. Saletsky, M. N. Zharkov, N. A. Pyataev, G. B. Sukhorukov, Y. K. Gun'ko, A. M. Tishin
Summary: This study aims to improve the heat release efficiency of magnetic nanoparticles (MNPs) and address the side effects in medical techniques. Through the research on zinc manganese ferrite nanoparticles, the authors discovered a nontrivial dependence of heat release on the amplitude of the AC magnetic field and proposed a new optimization strategy.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tatiana Kiseleva, Rashad Abbas, Kirill Martinson, Aleksei Komlev, Evgenia Lazareva, Pavel Tyapkin, Evgeniy Solodov, Vyacheslav Rusakov, Alexander Pyatakov, Alexander Tishin, Nikolai Perov, Enkhnaran Uyanga, Deleg Sangaa, Vadim Popkov
Summary: This paper reports the experimental investigation of submicron Y3Fe5O12 garnet particles obtained by solution combustion synthesis (SCS) and discusses the interdependence of crystal and magnetic structure peculiarities and size's influence on its functional magnetothermal performance.
Article
Engineering, Electrical & Electronic
Nan N. Liu, Yulia A. Alekhina, Alexander P. Pyatakov, Nikolai S. Perov, Boris B. Kovalev, Gleb B. Sukhorukov, Alexander M. Tishin, Tomomasa Moriwaki, Kenta Nakazawa, Yuko Ichiyanagi
Summary: The magnetic and magnetothermal properties of annealed Zn0.2Mn0.8Fe2O4 nanoparticles with a diameter ranging from 9 to 35 nm were investigated and compared with unannealed Zn0.2Mn0.8Fe2O4 magnetic nanoparticles. Both types of nanoparticles exhibited a single-phase spinel structure. It was found that the specific absorption rate (SAR) of the large annealed nanoparticles was proportional to the amplitude of the magnetic field, similar to H-4. However, the unannealed nanoparticles showed a superquadratic dependence SAR similar to H-5 starting from 13 nm. The change in the SAR(d) relationship can be explained by the low hysteresis area of small annealed nanoparticles and the dominant role of Neel relaxation in these annealed Zn0.2Mn0.8Fe2O4 nanoparticles.
IEEE MAGNETICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
R. M. Vakhitov, R. Solonetsky, V. R. Gurjanova, A. R. Nizjamova, D. A. Sechin, T. T. Gareev, A. P. Pyatakov
Summary: Neel-type magnetic domain walls locally reduce the crystal's symmetry and induce electric polarization, showing promise in multiferroic materials. The internal structure of the domain wall is sensitive to magnetic fields, leading to potential applications in magnetoelectric effects. Specifically, this paper explores the magnetic field-modified electric polarization of domain walls in comparison to the giant magnetoelectric effect observed in iron garnet films at room temperature.
Article
Chemistry, Multidisciplinary
Le Fang, Chen Chen, A. Sundaresan, Chandrabhas Narayana, Nikita Ter-Oganessian, A. P. Pyatakov, Shixun Cao, Jincang Zhang, Wei Ren
Summary: The study utilized first-principles electronic structure calculations to investigate the conductivity properties of the CdTiO3/BaTiO3 (CTO/BTO) superlattice interface. The controllable conductivity at the interface was predicted, and the effect of polarization direction and strength on conductivity was analyzed. It was found that maximizing the superlattice polarization can be achieved by increasing the fraction of CdTiO3 layers.
Article
Chemistry, Physical
Shaowen Xu, Fanhao Jia, Shunbo Hu, Athinarayanan Sundaresan, Nikita Ter-Oganessian, Alexander P. Pyatakov, Jinrong Cheng, Jincang Zhang, Shixun Cao, Wei Ren
Summary: Density functional theory calculations were used to predict the properties of few-atomic-layer oxides based on polar perovskite KTaO3, revealing varying semiconductor and half-metal behaviors in systems with different numbers of atomic layers, with thicker systems exhibiting ferromagnetic surface states.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
Filuza A. Maksutova, Rostislav V. Solonetskiy, Robert M. Vakhitov, Alexander P. Pyatakov
