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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Berger, H.
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Topics
Publications (10/10 displayed)
- 2019Enhanced Electron-Phonon Interaction in Multivalley Materialscitations
- 2018Unusual Suppression of the Superconducting Energy Gap and Critical Temperature in Atomically Thin NbSe2citations
- 2017Magnetic and dielectric order in the kagomelike francisite Cu3Bi( SeO3) 2O2Clcitations
- 2017Magnetic and dielectric order in the kagomelike francisite Cu3Bi( SeO3) 2O2Clcitations
- 2016Multidomain Skyrmion Lattice State in Cu2OSeO3citations
- 2016Multidomain Skyrmion Lattice State in Cu₂OSeO₃citations
- 2015Engineering the topological surface states in the (Sb2)m-Sb2Te3 (m=0-3) superlattice seriescitations
- 2014Momentum and photon energy dependence of the circular dichroic photoemission in the bulk Rashba semiconductors BiTeX (X=I, Br, Cl)citations
- 2005Pressure-induced suppression of the spin-gapped insulator phase in BaVS3: an infrared optical studycitations
- 2000Orbitally driven spin pairing in the three-dimensional nonmagnetic Mott insulator BaVS3: evidence from single-crystal studiescitations
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article
Magnetic and dielectric order in the kagomelike francisite Cu3Bi( SeO3) 2O2Cl
Abstract
We report a single-crystal neutron diffraction and inelastic neutron scattering study on the spin 1/2 cuprate Cu3Bi(SeO3)2O2Cl, complemented by dielectric and electric polarization measurements. The study clarifies a number of open issues concerning this complex material, whose frustrated interactions on a kagomelike lattice, combined with Dzyaloshinskii-Moriya interactions, are expected to stabilize an exotic canted antiferromagnetic order. In particular, we determine the nature of the structural transition occurring at 115 K, the magnetic structure below 25 K resolved in the updated space group, and the microscopic ingredients at the origin of this magnetic arrangement. This was achieved by an analysis of the measured gapped spin waves, which signifies the need for an unexpected and significant anisotropic exchange beyond the proposed Dzyaloshinskii-Moriya interactions. Finally, we discuss the multiferroic properties of this material with respect to the space group symmetries.