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相关论文: Complex magnetoelectric effect in PFN-PT/CoFe$_{2-…

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The Fe$_5$PB$_2$ compound offers tunable magnetic properties via the possibility of various combinations of substitutions on the Fe and P-sites. Here, we present a combined computational and experimental study of the magnetic properties of…

Bulk magnetodielectric composites with a 3/0 configuration comprising of ferroelectric/magnetostrictive phases have been synthesized using Sr0.5Ba0.5NbO6 / CoCr0.4Fe1.6O4 as the two constituents respectively. The ferroelectric phase made by…

材料科学 · 物理学 2015-01-16 Satyapal Singh Rathore , Satish Vitta

The effect of cobalt and nickel substitutions for manganese on the physical properties of the perovskite manganite La1.2Bi0.8Mn2-x(Ni/Co)xO6+d, with x = 0.0-0.8, has been investigated. It is observed that the ferromagnetism is enhanced, TC…

材料科学 · 物理学 2008-09-04 Asish K. Kundu , R. Ranjith , V. Pralong , V. Caignaert , B. Raveau

Cubic perovskite-structure ABO$_3$ and A$_{1-x}$A$^{\prime}$$_x$BO$_3$-type oxides have been investigated extensively while their hexagonal-structure versions have received minimal attention, even though they are multiferroic and can form…

材料科学 · 物理学 2024-01-29 M. J. Swamynadhan , Andrew O'Hara , Saurabh Ghosh , Sokrates T. Pantelides

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 investigate the effects of Fe and Co substitutions on the phase stability of the martensitic phase, mechanical, electronic and magnetic properties of magnetic shape memory system Mn$_{2}$NiGa by first-principles Density functional…

材料科学 · 物理学 2017-11-15 Ashis Kundu , Sheuly Ghosh , Subhradip Ghosh

We report a theoretical study of the effects of electronic correlations, magnetic properties, and chemical bonding in the recently synthesized high-pressure orthorhombic phase of FeN$_2$ using the DFT+dynamical mean-field theory approach.…

强关联电子 · 物理学 2024-07-25 I. V. Leonov

Composition-driven structural transitions in Bi1-xCaxFe1-xMnxO3 ceramics prepared by the tartaric acid modified sol-gel technique have been studied to analyze its effect on the magnetic properties of bismuth ferrite (BiFeO3). It was…

材料科学 · 物理学 2014-01-17 Pawan Kumar , Manoranjan Kar

The mechanisms underlying the enhancement of magnetic anisotropies (MAs) of Sm ions, owing to valence electrons at the Sm site and the screened nuclear charges of ligands, are clarified using a detailed analysis of crystal fields (CF). In…

材料科学 · 物理学 2022-01-12 Takuya Yoshioka , Hiroki Tsuchiura , Pavel Novák

Single-phase Mg-doped ZnFe$_2$O$_4$ nanoparticles with x= 0, 0.3, 0.5, 0.7 have been prepared by the glycol-thermal method without any subsequent calcination. The crystallite size, microstructure and magnetic properties of the prepared…

材料科学 · 物理学 2025-08-20 Kemi Y. Adewale , Itegbeyogene P. Ezekiel

In this work, photostrictive manipulations of static and dynamic magnetic properties are demonstrated in an extrinsic multiferroic composite. The photostriction is achieved with visible light in the blue region of the spectrum. The…

Density functional based simulations are employed to explore magnetoelectric effects in iron-based oxides, showing a unique layered structure. We theoretically predict CaFeO2 to be a promising magnetoelectric, showing…

强关联电子 · 物理学 2015-06-15 Kunihiko Yamauchi , Tamio Oguchi , Silvia Picozzi

Hybrid organometallic systems offer a wide range of functionalities, including magnetoelectric interactions. However, the ability to design on-demand ME coupling remains challenging despite a variety of host-guest configurations and ME…

Improper ferroelectricity (trimerization) in the hexagonal manganites RMnO$_3$ leads to a network of coupled structural and magnetic vortices that induce domain wall magnetoelectricity and magnetization neither of which, however, occurs in…

材料科学 · 物理学 2015-06-12 Hena Das , Aleksander L. Wysocki , Yanan Geng , Weida Wu , Craig J. Fennie

We report on the observation of temperature and field dependent anomalous Nernst effect (ANE) in Ni-rich bulk Ni-Co-Mn-Sn full Heusler alloy. A large change in the transverse Nernst coefficient (N) is obtained across the first order…

强关联电子 · 物理学 2019-01-30 Arup Ghosh , Avirup De , Sunil Nair

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…

材料科学 · 物理学 2015-05-19 A. Dixit , G. Lawes , A. B. Harris

Magnetocaloric effect in {[Fe(pyrazole)$_4$]$_2$[Nb(CN)$_8$]$\cdot$4H$_2$O}$_n$ molecular magnet is reported. It crystallizes in tetragonal I4$_1$/a space group. The compound exhibits a phase transition to a long range magnetically ordered…

Experimentally, the intermetallic compound Mn$_{4}$FeGe$_{3}$ has been recently shown to exhibit enhanced magnetic properties and spin polarization compared to the Mn$_{5}$Ge$_{3}$ parent compound. The present {\em ab-initio} study focusses…

材料科学 · 物理学 2011-12-30 A. Stroppa , G. Kresse , A. Continenza

Magnetoelectric (ME) materials are of fundamental interest and have been investigated for their broad potential for technological applications. The search for, and eventually the theoretical design of, materials with large ME couplings…

材料科学 · 物理学 2014-02-06 Meng Ye , David Vanderbilt

Apart from being so far the only known binary multiferroic compound, CuO has a much higher transition temperature into the multiferroic state, 230 K, than any other known material in which the electric polarization is induced by spontaneous…