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Magnetic field induced ferroelectric hysteresis loop observed in Bi0.75Sr0.25FeO3-delta is of prime importance. The coexistence of antiferromagnetism and weak ferromagnetism is responsible for the original magnetoelastic and…

Materials Science · Physics 2009-11-13 Bohdan Kundys , Antoine Maignan , Christine Martin , Ninh Nguyen , Charles Simon

A ferroelectric is a material with a polar structure whose polarity can be reversed by applying an electric field. In metals, the itinerant electrons tend to screen electrostatic forces between ions, helping to explain why polar metals are…

Although several multiferroic materials/heterostructures have been extensively studied, finding strong magnetoelectric couplings for the electric field control of the magnetization remains challenging. Here, a novel interfacial…

Materials Science · Physics 2016-07-15 Yakui Weng , Lingfang Lin , Elbio Dagotto , Shuai Dong

Iron-substitution in hexagonal YMnO3 causes isostructural intra-lattice changes exceeding those of the lattice cell, contrary to the effects of non-magnetic B-site dopants. Magnetization M(T) evidence antiferromagnetic (AFM) ordering of the…

Strongly Correlated Electrons · Physics 2014-09-23 Sonu Namdeo , A. M. Awasthi

Materials with ferroelectrically switchable topological properties are of interest for both fundamental physics and practical applications. Using first-principles calculations, we find that stacking ferroelectric $\alpha$-In$_2$Se$_3$…

Materials Science · Physics 2024-02-29 Zhiqiang Tian , Ziming Zhu , Jiang Zeng , Chao-Fei Liu , Yurong Yang , Anlian Pan , Mingxing Chen

Magneto-capacitance effect was investigated using the impedance spectroscopy on single crystals of LuFe2O4. The intrinsic impedance response could be separated from the interfacial response and showed a clear hysteresis loop below TFerri ~…

Multiferroic materials provide robust and efficient routes for the control of magnetism by electric fields, which has been diligently sought after for a long time. The two-dimensional (2D) vdW multiferroics is a more exciting endeavour. To…

Materials Science · Physics 2023-10-18 Yangliu Wu , Deju Zhang , Yanning Zhang , Longjiang Deng , Bo Peng

We investigate the impact of mechanical strain, stacking order, and external electric fields on the magnetic interactions of a two-dimensional (2D) van der Waals (vdW) heterostructure in which a 2D ferromagnetic metallic Fe$_3$GeTe$_2$…

Materials Science · Physics 2023-03-30 Dongzhe Li , Soumyajyoti Haldar , Tim Drevelow , Stefan Heinze

We report an experimental study of electron transport properties of MnSe/(Bi,Sb)2Te3 heterostructures, in which MnSe is an antiferromagnetic insulator, and (Bi,Sb)2Te3 is a three-dimensional topological insulator (TI). Strong magnetic…

Mesoscale and Nanoscale Physics · Physics 2021-04-29 Yuxin Liu , Xuefan Niu , Rencong Zhang , Qinghua Zhang , Jing Teng , Yongqing Li

Searching for new functionality in next generation electronic devices is a principal driver of material physics research. Multiferroics simultaneously exhibit electric and magnetic order parameters that may be coupled through…

Materials Science · Physics 2017-06-06 Sae Hwan Chun , Kwang Woo Shin , Kee Hoon Kim , John F. Mitchell , Philip J. Ryan , Jong-Woo Kim

The magnetoelectric behavior of BiFeO$_3$ has been explored on the basis of accurate density functional calculations. The structural, electronic, magnetic, and ferroelectric properties of BiFeO$_3$ are predicted correctly without including…

Materials Science · Physics 2007-05-23 P. Ravindran , R. Vidya , A. Kjekshus , H. Fjellvåg , O. Eriksson

Recent results in electric-field control of magnetism have paved the way for the design of alternative magnetic and spintronic devices with enhanced functionalities and low power consumption. Among the diversity of reported magnetoelectric…

We have discovered strong magnetoelectric (ME) effects in the single chiral-helical magnetic state of single-crystalline langasite Ba3NbFe3Si2O14 that is crystallographically chiral. The ferroelectric polarization, predominantly aligned…

Strongly Correlated Electrons · Physics 2014-03-26 Nara Lee , Young Jai Choi , Sang-Wook Cheong

We have investigated the magnetoelectric and magnetodielectric response in FeVO$_4$, which exhibits a change in magnetic structure coincident with ferroelectric ordering at $T_{N2}$$\approx$15 K. Using symmetry considerations, we construct…

Materials Science · Physics 2015-05-19 A. Dixit , G. Lawes , A. B. Harris

Multiferroic rare earth manganites attracted recent attention because of the coexistence of different types of magnetic and ferroelectric orders resulting in complex phase diagrams and a wealth of physical phenomena. The coupling and mutual…

Strongly Correlated Electrons · Physics 2007-05-23 B. Lorenz , C. R. dela Cruz , F. Yen , Y. Q. Wang , Y. Y. Sun , C. W. Chu

We explore proximity-induced magnetocaloric effect (MCE) on transition metal dichalcogenides, focusing on a two-dimensional (2D) MoTe$_2$ monolayer deposited on a ferromagnetic semiconductor EuO substrate connected to a heat source. We…

Mesoscale and Nanoscale Physics · Physics 2022-02-09 Natalia Cortés , Francisco J. Peña , Oscar Negrete , Patricio Vargas

Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain classes of van der Waals (vdW) material heterostructures. The discovery of ferroelectricity in twisted vdW layers provides new opportunities to…

The marriage between a two-dimensional layered material (2DLM) and a complex transition metal oxide (TMO) results in a variety of physical and chemical phenomena that would not have been achieved in either material alone. Interesting recent…

Materials Science · Physics 2019-05-09 Kyeong Tae Kang , Jeongmin Park , Dongseok Suh , Woo Seok Choi

Flexoelectricity is a form of electromechanical coupling that has recently emerged because, unlike piezoelectricity, it is theoretically possible in any dielectric material. Two-dimensional (2D) materials have also garnered significant…

Materials Science · Physics 2022-08-23 Xiaoying Zhuang , Bo He , Brahmanandam Javvaji , Harold S. Park

Two-dimensional (2D) multiferroics exhibit cross-control capacity between magnetic and electric responses in reduced spatial domain, making them well suited for next-generation nanoscale devices; however, progress has been slow in…

Materials Science · Physics 2020-05-15 Jing Shang , Chun Li , Aijun Du , Ting Liao , Yuantong Gu , Yandong Ma , Liangzhi Kou , Changfeng Chen