Observation of orbital angular momentum in the chiral magnet 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>CrNb</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:math>
 by soft x-ray magnetic circular dichroism

Mito, Masaki; Ohsumi, H.; Shishidou, Tatsuya; Kuroda, Fumiaki; Tsuruta, Kazuki; Kotani, Yoshinori; Nakamura, Tetsuya; Togawa, Yoshihiko; Kishine, Jun‐ichiro; Kousaka, Yusuke; Akimitsu, Jun; Inoue, Katsuya

doi:10.1103/physrevb.99.174439

Cited by 27 publications

(6 citation statements)

References 32 publications

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“…The Figure 4 shows the total density of states. As can be seen, the profiles of DOS for P 6 3 /mmc and P 6 3 22-I crystal structures are very similar and agree well with those reported previously [6], [11]- [14]. For all systems Se 4p (highlighted by gray) and Nb 4d (highlighted by violet) states are located mainly in the energy intervals [−7:−2] and [−2:3] eV, respectively.…”

Section: Electronic Structuresupporting

confidence: 88%

Electronic Structure and Hyperfine Interactions in Cr$$_x$$NbSe$$_2$$ (x = 0.33, 0.5) by DFT Studies

Agzamova

Ogloblichev

2022

Appl Magn Reson

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The first principles calculations of the electronic structure and hyperfine interactions of CrxNbSe2 (x = 0.33, 0.55) chalcogenides are presented. As a result, the values of the hyperfine fields and the parameters of the quadrupole interaction were determined for different arrangements of chromium ions. Ab initio calculations are compared with data obtained by the nuclear magnetic resonance methods on the 53 Cr and 93 Nb nuclei. It has been shown that Cr 3+ ions have a high degree of hybridization of a1g and eg orbitals of 3d-electrons with 4d and 5s orbitals of niobium.It has been established that two nonequivalent environments of chromium ions coexist in Cr0.33NbSe2 compound.

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Section: Electronic Structuresupporting

confidence: 88%

Electronic Structure and Hyperfine Interactions in Cr$$_x$$NbSe$$_2$$ (x = 0.33, 0.5) by DFT Studies

Agzamova

Ogloblichev

2022

Appl Magn Reson

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“…(1) is the asymmetry of the orbital angular momentum due to the non-symmetric (chiral) electric field in the solid, which is coupled with the spin angular momentum, resulting in a chiral spin order. 18 This is the DM interaction itself. This has recently been confirmed by synchrotron radiation experiments.…”

Section: Conclusion and Future Perspectivementioning

confidence: 99%

Chiral Magnetism: Coupling Static and Dynamic Chirality

Inoue

2021

Chemistry Letters

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The synthesis, structure, magnetic properties and magnetic structure of two molecular chiral magnets and one inorganic chiral magnet are presented. In magnetic crystals belonging to the Sohncke group, which includes the chiral group, the chiral non-collinear spin structure is achieved through Dzyaloshinsky-Moriya interactions in addition to the usual exchange spin interactions and dipole-dipole spin interactions. Experimentally, a chiral helical magnetic (CHM) structure is observed as the ground state in most of this category of uniaxial chiral magnets as a non-collinear spin structure. CHM structure transforms into a chiral spin soliton (CS) magnetic structure in a magnetic field. The (CS) magnetic structure forms a chiral spin soliton lattice (CSL) magnetic structure when the nearest neighbor magnetic interaction is ferromagnetic. Since the CHM and CSL magnetic structures are topologically protected, they are not affected by defects and are therefore extremely stable. A series of studies have revealed that the chiral magnetic structure is perfectly coupled to the non-symmetric crystal structure. It was also found that the CHM and CSL magnetic structures are macroscopic spin-phase coherent states.

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“…As the Cr atom plays a role of the bridge between the well-separated NbS 2 layers, all interlayer electronic transport occurs via the Cr atom. In this material, the local symmetry around Cr is D 3 and its 3d-orbitals split into e, a 1 and e ′ orbitals [29]. Here as the orbital e has d x 2 −y 2 /d xy symmetries and the orbital a 1 has d 3z 2 −r 2 symmetry, the interband transition of the d-electron by optical vortices via the dipole interaction is allowed for (l, s) = (±1, ±1) (see figure 1(c)) [30].…”

Section: Modelmentioning

confidence: 99%

Twisted light-induced spin-spin interaction in a chiral helimagnet

Goto,

Ishihara,

Yokoshi

2021

Preprint

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We theoretically investigate how the orbital angular momentum of light can affect a chiral magnetic order. Here, we consider a metallic chiral helimagnet, which is under stationary radiation of a resonant optical vortex beam. We propose a novel interaction between local spins considering microscopic interactions between an optical vortex and electrons. This vortex-induced interaction modulates the chiral magnetic order in an entirely different way than an external magnetic field does. Our spin modulation technique may pave a route to create a unique topological or chiral structure for future opto-spintronics devices.

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Observation of orbital angular momentum in the chiral magnet CrNb3S6 by soft x-ray magnetic circular dichroism

Cited by 27 publications

References 32 publications

Electronic Structure and Hyperfine Interactions in Cr$$_x$$NbSe$$_2$$ (x = 0.33, 0.5) by DFT Studies

Electronic Structure and Hyperfine Interactions in Cr$$_x$$NbSe$$_2$$ (x = 0.33, 0.5) by DFT Studies

Chiral Magnetism: Coupling Static and Dynamic Chirality

Twisted light-induced spin-spin interaction in a chiral helimagnet

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