Investigation of structural changes in chiral magnet Cr1∕3NbS2 under application of pressure

Mito, Masaki; Tajiri, Takayuki; Tsuruta, Kazuki; Deguchi, Hiroyuki; Kishine, Jun‐ichiro; Inoue, Katsuya; Kousaka, Yusuke; Nakao, Yuya; Akimitsu, Jun

doi:10.1063/1.4919833

Cited by 24 publications

(8 citation statements)

References 18 publications

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“…Each Cr has six nearestneighbor sulfurs and two Nb (4f ) atoms at distances of 2.35 and 3.06 Å, respectively (see Figs. 1(a,b)) 11 . In this cluster unit CrS 6 -Nb 2 the local symmetry around Cr is approximately D 3d and the Cr 3d orbitals show an energy splitting t 2g →e g +a 1g as in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…In CrNb 3 S 6 , although the MCA has been known to be easy-plane type 6 , the orbital magnetic moment has never been measured experimentally. Indeed, the magnetic ordering temperature T c of CrNb 3 S 6 was evaluated to be approximately 130 K 6,11,13 . Recently, the interplane exchange interaction along the chiral c axis (J /k B = 16.2 K), the DM interaction (D/k B = 1.29 K), and the easy-plane anisotropy (K perp /k B = 1.02 K) have been evaluated from the ESR experiment 14 , showing fair agreement with the estimated values from the magnetization curve 15 .…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

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The chiral magnet CrNb3S6 with its solitonic objects has novel magnetic and transport properties, in which the spin-orbit coupling (SOC) plays a central role. Aiming to address the possible existence of orbital moments driven by SOC, we perform soft x-ray magnetic circular dichroism spectroscopy at the Cr L2,3 edges with in-plane magnetization. The dichroic signals provide direct experimental evidence that the Cr orbital magnetic moment is not quenched and is coupled antiparallel to the spin counterpart. Application of the orbital sum rule reveals that the magnitude of the Cr orbital moment is about 1 % of the total magnetization. These findings are consistent with the firstprinciples electronic structure calculations that utilize the Cr 2p core radial function to define the Cr local 3d quantities. The distinct roles of the atomic SOC among the Cr 3d and Nb 4d states are discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

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“…When external magnetic field is applied properly along certain direction, the chiral helimagnetic ordering phase can be modulated into topological spiral spin-textures, which exhibit characteristics of quasi-particles with nanoscale [1][2][3]. Moreover, these topological spiral spin-textures can be delicately manipulated and tuned by means of magnetic field [9], microwave [12], electric current [13][14][15], pressure [16], and dimensional confinement [17].…”

Section: Introductionmentioning

confidence: 99%

Critical phenomenon of the layered chiral helimagnetic YbNi₃Al₉

et al. 2020

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Two-dimensional layered YbNi 3 Al 9 exhibits a chiral helimagnetic ground state, which is a candidate for the field-modulated chiral magnetic soliton. In this work, the magnetism and critical phenomenon of YbNi 3 Al 9 are investigated. As H ⊥ c, a magnetic step with loop can be observed in the fielddependent magnetization, which may be corresponding to the possible chiral magnetic soliton phase transition. Based on the analysis of isothermal magnetization around T C , the critical exponents are obtained as β=0.1370(2), γ=1.7955(4), and δ=14.1043 (7), which fulfill the Widom scaling relation and Rushbrooke's law. Moreover, the obtained critical exponents are testified by the modified Arrott plot and scaling hypothesis. The critical exponents of YbNi 3 Al 9 are close to the theoretically prediction of 2D-Ising model with the spatial-dimensionality n=2 and spin-dimensionality d=1, indicating one-dimensional magnetic coupling in the two-dimensional framework. Based on universality scaling, we construct the detailed H-T phase diagram around the phase transition with H ⊥ c, which reveals that the field-induced magnetic transition for H ⊥ c is of the first-order type.

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“…The pressure induced electronic structure modification can have either a direct impact on the physical properties or can lead first of all to a crystal structure transformations (see e.g. 17,18 ). As a direct impact one can mention the pressure induced changes of the magnetic and transport properties of Co 1/3 NbS 2 19 as well as an enhancement of the superconducting properties of Fe x NbS 2 20 reported recently.…”

Section: Introductionmentioning

confidence: 99%

Magnetic-field-induced FM-AFM metamagnetic transition and strong negative magnetoresistance in Mn$_{1/4}$NbS$_2$ under pressure

Polesya,

Mankovsky,

Naumov

et al. 2020

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Transition metal dichalcogenides (TMDC) stand out with their high chemical stability and the possibility to incorporate a wide range of magnetic species between the layers. The behavior of conduction electrons in such materials intercalated by 3d-elements is closely related to their magnetic properties and can be sensitively controlled by external magnetic fields. Here, we study the magnetotransport properties of NbS2 intercalated with Mn, Mn 1/4 NbS2, demonstrating a complex behavior of the magnetoresistance and of the ordinary and anomalous Hall resistivities. Application of pressure as tuning parameter leads to the drastic changes of the magnetotransport properties of Mn 1/4 NbS2 exhibiting large negative magnetoresistance up to 65% at 7.1 GPa. First-principles electronic structure calculations indicates pressure-induced transition from ferromagnetic to antiferromagnetic state. Theoretical calculations accounting for the finite temperature magnetic properties of Mn 1/4 NbS2 suggest a field-induced metamagnetic ferromagnetic-antiferromagnetic transition as an origin of the large negative magentoresistance. These results inspire the development of materials for spintronic applications based on intercalated TMDC with a well controllable metamagnetic transition.

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Investigation of structural changes in chiral magnet Cr1∕3NbS2 under application of pressure

Abstract: Articles you may be interested inRole of structural factors in formation of chiral magnetic soliton lattice in Cr1/3NbS2

Cited by 24 publications

References 18 publications

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

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

Critical phenomenon of the layered chiral helimagnetic YbNi₃Al₉

Magnetic-field-induced FM-AFM metamagnetic transition and strong negative magnetoresistance in Mn$_{1/4}$NbS$_2$ under pressure

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Investigation of structural changes in chiral magnet Cr1∕3NbS2 under application of pressure

Abstract: Articles you may be interested inRole of structural factors in formation of chiral magnetic soliton lattice in Cr1/3NbS2

Cited by 24 publications

References 18 publications

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

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

Critical phenomenon of the layered chiral helimagnetic YbNi3Al9

Magnetic-field-induced FM-AFM metamagnetic transition and strong negative magnetoresistance in Mn$_{1/4}$NbS$_2$ under pressure

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Critical phenomenon of the layered chiral helimagnetic YbNi₃Al₉