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The quest for electric-field control of nanoscale magnetic states such as skyrmions, which would impact the field of spintronics, has led to a challenging search for multiferroic materials or structures with strong magnetoelectric coupling…

Materials Science · Physics 2023-10-24 Xin Jin , Andrew O'Hara , Yu-Yang Zhang , Shixuan Du , Sokrates T. Pantelides

The mixed spinel, MgFe2O4 has been synthesized by ball-milling assisted sintering method. X-ray diffraction study confirms formation of cubic MgFe2O4 and the lattice parameter values calculated are a = b = c = 8.369(3) {\AA}. Vibrating…

Materials Science · Physics 2018-10-01 B. Santhosh Kumar , N. Praveen Shankar , N. Aparna devi , C. Venkateswaran

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…

Materials Science · Physics 2024-01-29 M. J. Swamynadhan , Andrew O'Hara , Saurabh Ghosh , Sokrates T. Pantelides

We propose a theory of strong spin-lattice and spin-phonon coupling in iron pnictides and discuss its implications on superconductivity. Strong magneto-volume effect in iron compounds has long been known as the Invar effect. Fe pnictides…

Superconductivity · Physics 2009-07-17 T. Egami , B. -V. Fine , D. Parshall , A. Subedi , D. J. Singh

Rare-earth orthoferrite RFeO3 materials such as NdFeO3 are strongly studied because of their fascinating magnetic properties and their potential applications. Here, we show the successful epitaxial synthesis of parasitic-free NFO thin film…

The mutual coupling of spin and lattice degrees of freedom is ubiquitous in magnetic materials and potentially creates exotic magnetic states in response to the external magnetic field. Particularly, geometrically frustrated magnets serve…

We report a strong-field detection method for magnetic materials, based on the characterization of crystal time-reversal symmetry through the elliptical dichroism of harmonics. The consistency of the low-order harmonics driven by laser…

Optics · Physics 2025-05-13 Chen Qian , Ruifeng Lu

In this work we study the interplay between the crystal structure and magnetism of the pyroarsenate \alpha-Cu_2As_2O_7 by means of magnetization, heat capacity, electron spin resonance and nuclear magnetic resonance measurements as well as…

Multi-center transition metal complexes (MCTMs) with magnetically interacting ions have been proposed as components for information processing devices and storage units. For any practical application of MCTMs as magnetic units, it is…

Chemical Physics · Physics 2023-04-03 Henry C. Fitzhugh , James W. Furness , Mark R. Pederson , Juan E. Peralta , Jianwei Sun

We present systematic quantitative description of the magnetoconductance of the split-gate quantum wires. Accounting for the exchange and correlation interactions within the spin density function theory (DFT) leads to the lifting of the…

Mesoscale and Nanoscale Physics · Physics 2009-05-26 I. V. Zozoulenko , S. Ihnatsenko

Magnetic axis rotation (MAR) in ferromagnetic (FM) layers is crucial for strain-mediated converse magnetoelectric coupling. Employing the density functional theory (DFT), we computationally study the magnetic anisotropy of selected deformed…

Materials Science · Physics 2022-12-02 Zefeng Cai , Ben Xu

Electron correlation effects are particularly strong in the high temperature superconducting materials. Devising an accurate description of these materials has long been a challenge, with these strong correlation effects historically being…

Strongly Correlated Electrons · Physics 2014-09-24 Lucas K. Wagner , Peter Abbamonte

The link between crystal and electronic structure is crucial for understanding structure-property relations in solid-state chemistry. In particular, it has been instrumental in understanding topological materials, where electrons behave…

Magnetic materials represent an essential ingredient for the contemporary industry. Apart from common material parameters such as magnetocrystalline anisotropy, coercivity, or saturation magnetization, magnetoelastic behavior is vital for…

This study deals with the spin wave spectrum in magnetic macrostructure (composed of two ferromagnetic materials) showing a 3D periodicity: spherical ferromagnetic grains disposed in the nodes of a simple cubic crystal lattice are embedded…

Materials Science · Physics 2007-05-23 M. Krawczyk , H. Puszkarski

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…

Materials Science · Physics 2014-02-06 Meng Ye , David Vanderbilt

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

We report the \QTR{it}{pinned/biased} \QTR{it}{moment} in the superlattices consisting of ferromagnetic (FM) SrRuO$_3$ and antiferromgnetic (AFM) SrMnO$_3$. This superlattice system shows anisotropy and oriented pinning/biasing in the…

Strongly Correlated Electrons · Physics 2009-11-11 P. Padhan , W. Prellier

The coupling between localized spins and phonons can lead to shifts in the dielectric constant of insulating materials at magnetic ordering transitions. Studies on isostructural SeCuO3 (ferromagnetic) and TeCuO3 (antiferromagnetic)…

Materials Science · Physics 2009-04-14 G. Lawes , T. Kimura , C. M. Varma , M. A. Subramanian , R. J. Cava , A. P. Ramirez

We discuss a new class of phenomena based on strong interaction between magnetic superstructures and vortices in superconductors in combined heterogeneous structures. An inhomogeneous magnetization can pin vortices or create them…

Materials Science · Physics 2007-05-23 Igor F. Lyuksyutov , Valery Pokrovsky
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