Disorder-induced structural complexity in the barlowite family of S = 1/2 kagomé magnets

Katherine Tustain; Emma E. McCabe; Angel M. Arevalo-Lopez; Alexandra S. Gibbs; Stephen P. Thompson; Claire A. Murray; Clemens Ritter; Lucy Clark

doi:10.1021/acs.chemmater.1c03247

Disorder-induced structural complexity in the barlowite family of S = 1/2 kagomé magnets

Katherine Tustain, Emma E. McCabe, Angel M. Arevalo-Lopez, Alexandra S. Gibbs, Stephen P. Thompson, Claire A. Murray, Clemens Ritter, Lucy Clark^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We present a comprehensive structural and magnetic characterization of the barlowite family of S = 1/2 kagomé magnets, Cu₄(OH)₆FX, where X = Cl, Br, or I. Through high-resolution synchrotron X-ray and neutron powder diffraction measurements, we reveal two sources of structural complexity within this family of materials, namely, compositional disorder of the halide species that occupy sites in between the kagomé layers and the positional disorder of the interlayer Cu²⁺ ions that persists well into the Pnma structural ground state. We demonstrate that understanding these inherent structural disorders is key as they correlate with the degree of partial order in the magnetic ground states of these quantum frustrated magnets.

Original language	English
Pages (from-to)	9638–9651
Number of pages	14
Journal	Chemistry of Materials
Volume	33
Issue number	24
Early online date	9 Dec 2021
DOIs	https://doi.org/10.1021/acs.chemmater.1c03247
Publication status	Published - 28 Dec 2021

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10.1021/acs.chemmater.1c03247

Unravelling Structural Complexity within a Family of Frustrated S = ½ Kagome Antiferromagnets
Clark, L. (Creator), Gibbs, A. (Creator), Abdeldaim, A. (Creator) & Tustain, K. (Creator), Science and Technology Facilities Council, 2022
DOI: 10.5286/isis.e.rb1910099
Dataset

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title = "Disorder-induced structural complexity in the barlowite family of S = 1/2 kagom{\'e} magnets",

abstract = "We present a comprehensive structural and magnetic characterization of the barlowite family of S = 1/2 kagom{\'e} magnets, Cu4(OH)6FX, where X = Cl, Br, or I. Through high-resolution synchrotron X-ray and neutron powder diffraction measurements, we reveal two sources of structural complexity within this family of materials, namely, compositional disorder of the halide species that occupy sites in between the kagom{\'e} layers and the positional disorder of the interlayer Cu2+ ions that persists well into the Pnma structural ground state. We demonstrate that understanding these inherent structural disorders is key as they correlate with the degree of partial order in the magnetic ground states of these quantum frustrated magnets.",

author = "Katherine Tustain and McCabe, {Emma E.} and Arevalo-Lopez, {Angel M.} and Gibbs, {Alexandra S.} and Thompson, {Stephen P.} and Murray, {Claire A.} and Clemens Ritter and Lucy Clark",

note = "Funding: The authors thank the University of Liverpool for provision of a PhD studentship to K.T. and the STFC for access to beam time at the Diamond Light Source (instrument ID11, proposal CY24154), ISIS Neutron and Muon Source, and the Institut Laue-Langevin. ",

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T1 - Disorder-induced structural complexity in the barlowite family of S = 1/2 kagomé magnets

AU - Tustain, Katherine

AU - McCabe, Emma E.

AU - Arevalo-Lopez, Angel M.

AU - Gibbs, Alexandra S.

AU - Thompson, Stephen P.

AU - Murray, Claire A.

AU - Ritter, Clemens

AU - Clark, Lucy

N1 - Funding: The authors thank the University of Liverpool for provision of a PhD studentship to K.T. and the STFC for access to beam time at the Diamond Light Source (instrument ID11, proposal CY24154), ISIS Neutron and Muon Source, and the Institut Laue-Langevin.

PY - 2021/12/28

Y1 - 2021/12/28

N2 - We present a comprehensive structural and magnetic characterization of the barlowite family of S = 1/2 kagomé magnets, Cu4(OH)6FX, where X = Cl, Br, or I. Through high-resolution synchrotron X-ray and neutron powder diffraction measurements, we reveal two sources of structural complexity within this family of materials, namely, compositional disorder of the halide species that occupy sites in between the kagomé layers and the positional disorder of the interlayer Cu2+ ions that persists well into the Pnma structural ground state. We demonstrate that understanding these inherent structural disorders is key as they correlate with the degree of partial order in the magnetic ground states of these quantum frustrated magnets.

AB - We present a comprehensive structural and magnetic characterization of the barlowite family of S = 1/2 kagomé magnets, Cu4(OH)6FX, where X = Cl, Br, or I. Through high-resolution synchrotron X-ray and neutron powder diffraction measurements, we reveal two sources of structural complexity within this family of materials, namely, compositional disorder of the halide species that occupy sites in between the kagomé layers and the positional disorder of the interlayer Cu2+ ions that persists well into the Pnma structural ground state. We demonstrate that understanding these inherent structural disorders is key as they correlate with the degree of partial order in the magnetic ground states of these quantum frustrated magnets.

U2 - 10.1021/acs.chemmater.1c03247

DO - 10.1021/acs.chemmater.1c03247

M3 - Article

SN - 0897-4756

VL - 33

SP - 9638

EP - 9651

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 24

ER -

Disorder-induced structural complexity in the barlowite family of S = 1/2 kagomé magnets

Abstract

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Unravelling Structural Complexity within a Family of Frustrated S = ½ Kagome Antiferromagnets

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