Canted antiferromagnetic order in the kagome material Sr-vesignieite

Verrier, A.; Bert, F.; Parent, Jean-Michel; El-Amine, Mariam; Orain, Jean-Christophe; Boldrin, D.; Wills, A. S.; Mendels, P.; Quilliam, J. A.

doi:10.1103/physrevb.101.054425

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…The latter is more likely responsible for the resulting spin arrangement in this cobalt compound. The canting of the moments out of the kagome planes may also be related to magnetocrystalline anisotropy or to Dzyaloshinskii–Moriya interactions, which are not forbidden since there is no inversion center between the magnetic ions on the kagome lattice. − A similar in-plane magnetic structure was proposed for the intermediate state of Co 3 Sn 2 S 2 , between the paramagnetic and ferromagnetic states …”

Section: Resultsmentioning

confidence: 87%

Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co₃In₂S₂

et al. 2021

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Co 3 In 2 S 2 is a shandite phase closely related to the ferromagnetic Weyl semimetal Co 3 Sn 2 S 2 and contains Co atoms on an ideal kagome net. Elemental substitutions in Co 3 Sn 2 S 2 have been shown to invariably suppress its magnetism, and it remains a rare example of a shandite phase with magnetic order. Here, we report a new magnetic shandite compound discovered by substituting Fe into Co 3 In 2 S 2 . Single crystals of (Co 1−x Fe x ) 3 In 2 S 2 were grown, and neutron diffraction, ac and dc magnetization, and heat capacity measurements reveal longrange antiferromagnetic order with an interesting noncollinear structure and transition temperatures from 11 to 17 K. Partially substituting Fe for Co was inspired by calculated electronic structures, which suggest that Co 3 In 2 S 2 is near a magnetic instability and shows a peak in the density of states that can be approached by hole doping. While the focus of the present work is primarily on magnetism, there is a nodal ring below the Fermi energy in Co 3 In 2 S 2 that may also provide interest from a topological perspective. Potentially related to this, we find large, linear, nonsaturating magnetoresistance in this compound. This work expands the scope of magnetic topological materials among shandites and motivates similar chemical manipulation studies to reveal hidden magnetic instabilities in this important family and other topological systems.

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Section: Resultsmentioning

confidence: 87%

Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co₃In₂S₂

et al. 2021

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“…In this magnetic pattern, the spins cant out of the kagome plane with an angle η. Such a q = 0 umbrella ordered state in the kagome lattice has been observed in jarosite KFe 3 (OH) 6 (SO 4 ) 2 7,13 , vesignieite BaCu 3 -V 2 O 8 (OH) 2 14,15 , Sr-vesignieite Cu 3 SrV 2 O 8 (OH) 2 16,17 , edwardsite Cd 2 Cu 3 (SO 4 ) 2 (OH) 6 .4H 2 O 18 , and some variants of them. In Table 1, we list a collection of spin-1/2 copper-based kagome materials.…”

Section: Introductionmentioning

confidence: 77%

Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet

2020

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We study the resonant inelastic x-ray scattering (RIXS) features of vector chiral ordered kagome antiferromagnets. Utilizing a group theoretical formalism that respects lattice site symmetry, we calculated the L-edge magnon contribution for the vesignieite compound BaCu3V2O8(OH)2. We show that polarization dependence of the L-edge RIXS spectrum can be used to track magnon branches. We predict a non-zero L-edge signal in the non-cross π−π polarization channel. At the K-edge, we derived the two-site effective RIXS and Raman scattering operator for two-magnon excitation in vesignieite using the Shastry–Shraiman formalism. Our derivation considers spin-orbit coupling effects in virtual hopping processes. We find vector chiral correlation (four-spin) contribution that is proportional to the RIXS spectrum. Our scattering operator formalism can be applied to a host of non-collinear non-coplanar magnetic materials at both the L and K-edge. We demonstrate that vector chiral correlations can be accessed by RIXS experiments.

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“…In this magnetic pattern, the spins with cant out of the kagomé plane with angle η. Such a q = 0 umbrella ordered state in kagomé lattice has been observed in jarosite KFe 3 (OH) 6 (SO 4 ) 2 [7,13], vesignieite BaCu 3 V 2 O 8 (OH) 2 [14,15],Sr-vesignieite Cu 3 SrV 2 O 8 (OH) 2 [16,17], edwardsite Cd 2 Cu 3 (SO 4 ) 2 (OH) 6 • 4 H 2 O [18], and some variants of them. In Table I we list a collection of spin-1/2 copper based kagomé materials.…”

Section: Introductionmentioning

confidence: 79%

Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet

Xiong,

Datta,

Yao

2020

Preprint

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We study the resonant inelastic x-ray scattering (RIXS) features of vector chiral ordered kagomé antiferromagnetic materials. Utilizing a group theoretical formalism that respects lattice site symmetry, we calculated the L -edge magnon contribution for the kagomé vesignieite compound BaCu 3 V 2 O 8 (OH) 2 . In contrast to inelastic neutron scattering, we show that incoming and outgoing polarization dependence of the L -edge RIXS spectrum can be used to distinguish magnon branches. At the K -edge, we derived the two-site effective RIXS and Raman scattering operator for bimagnon excitation in vesignieite using the Shastry-Shraiman formalism. Our derivation explicitly considers spin-orbit coupling effects in virtual hopping processes. We find vector chiral correlation (four spin) contribution that is proportional to the RIXS spectrum. Our scattering operator formalism can be applied to a host of realistic non-collinear non-coplanar materials at both the L and K -edge. We demonstrate that vector chiral correlations can be accessed by current RIXS experiments.

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Canted antiferromagnetic order in the kagome material Sr-vesignieite

Cited by 9 publications

References 29 publications

Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co₃In₂S₂

Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co₃In₂S₂

Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet

Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet

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Canted antiferromagnetic order in the kagome material Sr-vesignieite

Cited by 9 publications

References 29 publications

Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co3In2S2

Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co3In2S2

Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet

Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet

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Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co₃In₂S₂

Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co₃In₂S₂