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We investigate the electronic structure and the ferroelectric properties of the recently discovered multiferroic ScFeO$_3$ by means of ab-initio calculations. The $3d$ manifold of Fe in the half-filled configuration naturally favors an…

Magnetoelectric composites integrate the coupling between magnetic and piezoelectric materials to create new functionalities for potential technological applications. This coupling is typically achieved through the exchange of magnetic,…

Within the broad class of multiferroics (compounds showing a coexistence of magnetism and ferroelectricity), we focus on the subclass of "improper electronic ferroelectrics", i.e. correlated materials where electronic degrees of freedom…

Materials Science · Physics 2012-07-26 Silvia Picozzi , Alessandro Stroppa

We present an experimental study of the magnetoelectric coupling (MEC) in the Fe-Ga/PMN-PT thin film multiferroic composite by means of x-ray magnetic circular dichroism (XMCD) and ferromagnetic resonance (FMR). Our measurements show…

Materials with magnetoelectric coupling (MEC) between ferroic orders at room temperature are emerging field in modern technology and physics. BaTiO3 is a robust ferroelectric in which several doping has led to MEC. In Ca and Mn modified…

We have investigated magnetoelectric coupling in the single-molecule magnet $\mathrm{Mn}_{4}\mathrm{Te}_{4}(\mathrm{P}\mathrm{Et}_{3})_{4}$ with tetrahedral spin frustration. Our density functional studies found that an electric dipole…

Materials Science · Physics 2022-08-31 Jie-Xiang Yu , Jia Chen , Neil Sullivan , Hai-Ping Cheng

Multiferroics (MFs) are materials with two or more ferroic orders, like spontaneous ferroelectric and ferromagnetic polarizations. Such materials can exhibit a magnetoelectric effect whereby magnetic and ferroelectric polarizations couple…

Multiferroic materials have undergone extensive research in the past two decades in an effort to produce a sizable room-temperature magneto-electric (ME) effect in either exclusive or composite materials for use in a variety of electronic…

Motivated by recent terahertz (THz) spectroscopy measurements in $\alpha$-RuCl$_3$, we develop a theory for magnetoelectric (ME) effects in Mott insulators of $d^5$ transition metal ions in an octahedral crystal field. For $4d$ and $5d$…

Strongly Correlated Electrons · Physics 2018-10-03 Adrien Bolens

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

In this paper, we investigate the demagnetizing effect in ferrite/PZT/ferrite magnetoelectric (ME) trilayer composites consisting of commercial PZT discs bonded by epoxy layers to Ni-Co-Zn ferrite discs made by a reactive Spark Plasma…

Materials Science · Physics 2018-03-28 V. Loyau , A. Aubert , M. Lobue , F. Mazaleyrat

We study coupling between the ferroelectric polarization and magnetization of granular ferromagnetic film using a phenomenological model of combined multiferroic system consisting of granular ferromagnetic film placed above the…

Mesoscale and Nanoscale Physics · Physics 2014-10-27 O. G. Udalov , N. M. Chtchelkatchev , I. S. Beloborodov

Magnetoelectric (ME) effect, the phenomenon of inducing magnetization by application of an electric field or vice versa, holds great promise for magnetic sensing and switching applications. Studies of the ME effect have so far focused on…

Mesoscale and Nanoscale Physics · Physics 2021-10-19 Jieun Lee , Zefang Wang , Hongchao Xie , Kin Fai Mak , Jie Shan

Magnetoelectric coupling is crucial for uncovering fundamental phenomena and advancing technologies in high-density data storage and energy-efficient devices. The emergence of altermagnets, which unify the advantages of ferromagnets and…

Materials Science · Physics 2025-03-18 Xunkai Duan , Jiayong Zhang , Ziye Zhu , Yuntian Liu , Zhenyu Zhang , Igor Zutic , Tong Zhou

Ferroelectric and ferromagnetic materials possess spontaneous electric and magnetic order, respectively, which can be switched by the corresponding applied electric and magnetic fields. Multiferroics combine these properties in a single…

Strongly Correlated Electrons · Physics 2012-11-27 J. Lee , S. A. Trugman , C. D. Batista , C. L. Zhang , D. Talbayev , X. S. Xu , S. --W. Cheong , D. A. Yarotski , A. J. Taylor , R. P. Prasankumar

We derive a sum rule to demonstrate that the static magnetoelectric (ME) effect is governed by optical transitions that are simultaneously excited via the electric and magnetic components of light. By a systematic analysis of magnetic point…

Materials Science · Physics 2014-01-15 D. Szaller , S. Bordacs , V. Kocsis , U. Nagel , T. Room , I. Kezsmarki

Electric field induced magnetization switching in single-phase multiferroic materials is intriguing for both fundamental studies and potential technological applications. Here we develop a framework to study the switching dynamics of…

Mesoscale and Nanoscale Physics · Physics 2015-06-26 Kuntal Roy

Nowdays, multiferroic materials with magnetoelectric coupling have many real-world applications in the fields of novel memory devices. It is challenging is to create multiferroic materials with strongly coupled ferroelectric and…

Materials Science · Physics 2018-05-29 Deobrat Singh , Sanjeev K. Gupta , Haiying He , Yogesh Sonvane

By performing accurate ab-initio density functional theory calculations, we study the role of $4f$ electrons in stabilizing the magnetic-field-induced ferroelectric state of DyFeO$_{3}$. We confirm that the ferroelectric polarization is…

Materials Science · Physics 2015-05-14 Alessandro Stroppa , Martijn Marsman , Georg Kresse , Silvia Picozzi

Multiferroic (MF) devices based on simultaneous ferroelectric and ferromagnetic phenomena are considered to be promising candidates for future bi-functional micro/nano-electronics. The multiferroic phenomena in two-dimensional materials is…

Applied Physics · Physics 2022-08-30 Rabia Tahir , Sabeen Fatima , Syedah Afsheen Zahra , Deji Akinwande , Syed Rizwana