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Magnetically ordered and kagome quantum spin liquid states in the Zn-doped claringbullite series

Georgopoulou, Madeleine; Fåk, Björn; Boldrin, David; Stewart, J Ross; Ritter, Clemens; Suard, Emmanuelle; Ollivier, Jacques; (2023) Magnetically ordered and kagome quantum spin liquid states in the Zn-doped claringbullite series. Physical Review B , 107 (2) , Article 024416. 10.1103/PhysRevB.107.024416. Green open access

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Abstract

Neutron scattering measurements have been performed on deuterated powder samples of claringbullite and Zndoped claringbullite [ZnxCu4−x (OD)6FCl]. At low temperatures, claringbullite Cu4(OD)6FCl forms a distorted pyrochlore lattice with long-range magnetic order and spin-wave-like magnetic excitations. Partial Zn doping leads to the nominal ZnCu3(OD)6FCl compound, a geometrically frustrated spin-1/2 kagome antiferromagnet that shows no transition to magnetic order down to 1.5 K. The magnetic excitations form a gapless continuum, a signature of fractional excitations in a quantum spin liquid.

Type: Article
Title: Magnetically ordered and kagome quantum spin liquid states in the Zn-doped claringbullite series
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevB.107.024416
Publisher version: https://doi.org/10.1103/PhysRevB.107.024416
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10164019
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