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We discuss a model that considers the bulk composite as a homogeneous medium with piezoelectric and magnetostrictive subsystems. We solve combined elastostatic, electrostatic and magnetostatic equations to obtain effective composite…

Materials Science · Physics 2007-05-23 V. M. Petrov , M. I. Bichurin V. M. Laletin , N. N. Paddubnaya , G. Srinivasan

We report the complex magnetic phase diagram and electronic structure of Cr2(Te1-xWx)O6 systems. While compounds with different x values possess the same crystal structure, they display different magnetic structures below and above xc =…

Materials Science · Physics 2014-09-05 M. Zhu , D. Do , C. R. Dela Cruz , Z. Dun , H. D. Zhou , S. D. Mahanti , X. Ke

The recently reported Bilinear Magnetoeletric Resistance (BMR) in novel materials with rich spin textures, such as bismuth selenide (Bi$_2$Se$_3$) and tungsten ditelluride (WTe$_2$), opens new possibilities for probing the spin textures via…

The main ideas and some of the most important results of the spherically symmetric self-consistent approach and a number of related theoretical algorithms are presented. These methods make it possible to study low-dimensional…

Strongly Correlated Electrons · Physics 2026-05-18 A. F. Barabanov , V. E. Valiulin , A. V. Mikheyenkov , P. S. Savchenkov

Neutron scattering was used to determine the spin structure and the magnon spectrum of the Mott--Hubbard insulator YTiO$_3$. The magnetic structure is complex, comprising substantial G-type and A-type antiferromagnetic components in…

Strongly Correlated Electrons · Physics 2009-11-07 C. Ulrich , G. Khaliullin , S. Okamoto , M. Reehuis , A. Ivanov , H. He , Y. Taguchi , Y. Tokura , B. Keimer

The prospect of merging the paradigms of geometric frustration on a triangular lattice and bond anisotropies in the strong spin-orbit coupling limit holds tremendous promise in the ongoing hunt for exotic quantum materials. Here we identify…

Fifteen parameters characterizing the crystal field of rare-earth ions in the RMO$_3$ perovskites (R = Pr, Nd, M = Ga, Co) are calculated by expanding the local Hamiltonian expressed in the basis of Wannier functions into a series of…

Strongly Correlated Electrons · Physics 2013-10-24 P. Novak , K. Knizek , M. Marysko , Z. Jirak , J. Kunes

The structural, electronic, and magnetic properties of Gd@C_82 endohedral metallofullerene have been studied by employing on-site correlation corrected, scalar-relativistic and full-relativistic density functional theory within the local…

Atomic and Molecular Clusters · Physics 2009-02-19 Ali Sebetci , Manuel Richter

$\alpha$-RuCl$_3$ has been proposed recently as an excellent playground for exploring Kitaev physics on a two-dimensional (2D) honeycomb lattice. However, structural clarification of the compound has not been completed, which is crucial in…

Materials Science · Physics 2016-04-27 Heung-Sik Kim , Hae-Young Kee

The properties of a system of n = 3 coupled oscillators with linear terms in the velocities (magnetic terms) depending in two parameters are studied. We proved the existence of a bi-Hamiltonian structure arising from a non-symplectic…

Exactly Solvable and Integrable Systems · Physics 2008-04-23 Manuel F. Rañada

Motivated by a recent experimental observation of a complex magnetic structure [Takada et al. 2013 J. Magn. Magn. Mater. 329 95] we present a theoretical study of the magnetic structure of an Fe monolayer deposited on Rh(001). We use a…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 A. Deák , K. Palotás , L. Szunyogh , I. A. Szabó

Orbitally degenerate systems provide a promising platform for realizing novel quantum phases driven by spin-orbital exchange interactions, as described by the Kugel-Khomskii model. Spinel vanadates, in which orbital degrees of freedom…

Strongly Correlated Electrons · Physics 2026-05-06 Hiroki Nakai , Yusuke Nomura

Nanoscale topologically non-trivial magnetization configurations generate significant interest due to both the fundamental properties of their knotted structures and their potential applications in ultra-efficient computing devices. While…

We theoretically introduce a quasi-1D magnetic heterostructure of alternating 2D topological and normal insulator strips. Its low-energy physics is governed by a hybrid Hamiltonian intertwining the Su-Schrieffer-Heeger and Shockley models,…

Mesoscale and Nanoscale Physics · Physics 2026-04-03 Z. Z. Alisultanov

We consider linear magneto-quasistatic field equations which arise in simulation of low-frequency electromagnetic devices coupled to electrical circuits. A finite element discretization of such equations on 3D domains leads to a singular…

Numerical Analysis · Mathematics 2019-11-21 Johanna Kerler-Back , Tatjana Stykel

Using quantum chemistry calculations we shed fresh light on the electronic structure and magnetic properties of RuCl3, a proposed realization of the honeycomb Kitaev spin model. It is found that the nearest-neighbor Kitaev exchange K is…

Strongly Correlated Electrons · Physics 2017-01-19 Ravi Yadav , Nikolay A. Bogdanov , Vamshi M. Katukuri , Satoshi Nishimoto , Jeroen van den Brink , Liviu Hozoi

Magnetic ordering in two-dimensional (2D) materials has recently emerged as a promising platform for data storage, computing, and sensing. To advance these developments, it is vital to gain a detailed understanding of how the magnetic order…

We theoretically investigate an antiferromagnetic structure in a hexagonal zigzag-chain compound Ce$_3$TiBi$_5$, which shows a linear magnetoelectric effect in metals and an unfamiliar temperature dependence of magnetic susceptibility. We…

Strongly Correlated Electrons · Physics 2023-01-19 Satoru Hayami , Hiroaki Kusunose

We investigate magnetic, thermal, and dielectric properties of SrCuTe2O6, which is isostructural to PbCuTe2O6, a recently found, Cu-based 3D frustrated magnet with a corner sharing triangular spin network having dominant first and second…

Strongly Correlated Electrons · Physics 2016-03-16 B. Koteswararao , S. K. Panda , R. Kumar , Kyongjun Yoo , A. V. Mahajan , I. Dasgupta , B. H. Chen , Kee Hoon Kim , F. C. Chou

The Hubbard model, which augments independent-electron band theory with a single parameter to describe electron-electron correlations, is widely regarded to be the `standard model' of condensed matter physics. The model has been remarkably…

Strongly Correlated Electrons · Physics 2016-02-17 S. M. Griffin , P. Staar , T. C. Schulthess , M. Troyer , N. A. Spaldin