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Monoaxial chiral magnets can form a peculiar noncollinear spin structure called the chiral soliton lattice in an applied magnetic field perpendicular to the helical axis. We study magnetic properties and electrical transport in the chiral…

Strongly Correlated Electrons · Physics 2017-07-12 Shun Okumura , Yasuyuki Kato , Yukitoshi Motome

The van der Waals (vdW) layered multiferroics, which host simultaneous ferroelectric and magnetic orders, have attracted attention not only for their potentials to be utilized in nanoelectric devices and spintronics, but also offer…

We find using LSDA+U band structure calculations that the novel one-dimensional cobaltate Ca$_3$Co$_2$O$_6$ is not a ferromagnetic half-metal but a Mott insulator. Both the octahedral and the trigonal Co ions are formally trivalent, with…

Strongly Correlated Electrons · Physics 2007-05-23 Hua Wu , M. W. Haverkort , Z. Hu , D. I. Khomskii , L. H. Tjeng

We have studied the electronic structure of BaCoO$_3$ using soft x-ray absorption spectroscopy at the Co-$L_{2,3}$ and O-$K$ edges, magnetic circular dichroism at the Co-$L_{2,3}$ edges, as well as valence band hard x-ray photoelectron…

We present a computational study of the layered copper oxychloride [CuCl]LaNb(2)O(7) that has been recently proposed as a spin-1/2 frustrated square lattice compound. Our results evidence an orbitally degenerate ground state for the…

Strongly Correlated Electrons · Physics 2009-06-17 Alexander A. Tsirlin , Helge Rosner

The magnetic and crystal structures of manganese and nickel monoxides have been studied by high-resolution neutron diffraction. The known 1$k$-structures based on the single propagation vector $\left[\tfrac{1}{2}\ \tfrac{1}{2}\…

Other Condensed Matter · Physics 2025-09-16 V. Pomjakushin

Noncollinear spin textures in low-dimensional magnetic systems have been studied for decades because of their extraordinary properties and promising applications derived from the chirality and topological nature. However, material…

Mesoscale and Nanoscale Physics · Physics 2020-09-29 Xiaobo Lu , Ruixiang Fei , Linghan Zhu , Li Yang

FeVO$_4$ has been studied by heat capacity, magnetic susceptibility, electric polarization and single crystal neutron diffraction experiments. The triclinic crystal structure is made of \emph{S}-shaped clusters of six Fe$^{3+}$ ions, linked…

Superconductivity · Physics 2015-05-13 A. Daoud-Aladine , B. Kundys , C. Martin , P. G. Radaelli , P. J. Brown , C. Simon , L. C. Chapon

We investigated a system based solely on a single molecular species, Cu(tmdt)$_{2}$, accommodating $d$ and ${\pi}$ orbitals within the molecule. $^{13}$C nuclear magnetic resonance measurements captured singlet-triplet excitations of…

Materials Science · Physics 2017-03-17 Rina Takagi , Takamasa Hamai , Hiro Gangi , Kazuya Miyagawa , Biao Zhou , Akiko Kobayashi , Kazushi Kanoda

For face-centered cubic (fcc) and tetragonal (fct) iron a large number of magnetic configurations as a function of crystal structural parameters were studied by means of density functional theory. The stability of magnetic structures was…

Materials Science · Physics 2015-06-18 D. Reith , R. Podloucky , M. Marsman , P. O. Bedolla-Velazquez , P. Mohn

We present first principles calculations of the magnetic and orbital properties of Ba$_2$NaOsO$_6$ (BNOO), a 5$d^1$ Mott insulator with strong spin orbit coupling (SOC) in its low temperature emergent quantum phases. Our computational…

Strongly Correlated Electrons · Physics 2019-11-22 R. Cong , Ravindra Nanguneri , Brenda Rubenstein , V. F. Mitrović

We study the electronic properties of the heterobilayer of vanadium and iron oxychlorides, VOCl and FeOCl, two layered air stable van der Waals insulating oxides with different types of antiferromagnetic order in bulk: VOCl monolayers are…

Mesoscale and Nanoscale Physics · Physics 2021-04-19 F. Mahrouche , K. Rezouali , Z. C. Wang , J. Fernández-Rossier , A. Molina-Sánchez

Geometrical frustration arised in spin ices leads to fascinating emergent physical properties. Nowadays there is a wide diversity of the artificial structures, mimicking spin ice at the nanoscale and demonstrating some new effects. Most of…

Electronic and magnetic structures of the newly synthesized cobalt oxyselenide La2Co2Se2O3 (structurally similar to the superconducting iron pnictides) are studied through density functional calculations. The obtained results show that this…

Strongly Correlated Electrons · Physics 2015-05-19 Hua Wu

This paper presents results of a recent study of multiferroic \CCO\ by means of single crystal neutron diffraction. This system has two close magnetic phase transitions at $T\nsub{N1}=24.2$ K and $T\nsub{N2}=23.6$ K. The low temperature…

Materials Science · Physics 2015-05-30 M. Frontzek , G. Ehlers , A. Podlesnyak , H. Cao , M. Matsuda , O. Zaharko , N. Aliouane , S. Barilo , S. V. Shiryaev

Magnetic properties of materials ranging from conventional ferromagnetic metals to strongly correlated materials such as cuprates originate from Coulomb exchange interactions. The existence of alternate mechanisms for magnetism that could…

Despite being successfully synthesized [Zhang $et$ $al.$, Nat. Mater. \textbf{20}, 1073 (2021)], the monolayer structure of stable hexagonal TiO$_2$ is unknown, and it is not even clear whether it can exist in a freestanding form. Through…

Materials Science · Physics 2024-04-30 Xiangtian Bu , Haitao Liu , Yuanchang Li

$\gamma$-triclinic and $\alpha$-monoclinic polymorphs of CoV$_{2}$O$_{6}$ are two of the few known transition metal ion based materials that display stepped $1/3$ magnetization plateaus at low temperatures. Neutron diffraction [M. Markkula…

Strongly Correlated Electrons · Physics 2015-12-23 F. Wallington , A. M. Arevalo-Lopez , J. W. Taylor , J. R. Stewart , V. Garcia-Sakai , J. P. Attfield , C. Stock

The double perovskite Ba$_{2}$NaOsO$_{6}$ (BNOO), an exotic example of a very high oxidation state (heptavalent) osmium $d^1$ compound and also uncommon by being a ferromagnetic Mott insulator without Jahn-Teller (JT) distortion, is modeled…

Strongly Correlated Electrons · Physics 2015-06-23 Shruba Gangopadhyay , Warren E. Pickett

Transition-metal ions with $5d^2$ electronic configuration in a cubic crystal field are prone to have a vanishing dipolar magnetic moment but finite higher-order multipolar moments, and they are expected to exhibit exotic physical…

Strongly Correlated Electrons · Physics 2025-07-16 J. Okamoto , G. Shibata , Yu. S. Posonov , H. Hayashi , K. Yamaura , H. Y. Huang , A. Singh , C. T. Chen , A. Tanaka , S. V. Streltsov , D. J. Huang , A. Fujimori