Authors
L Stödter, C Kastner, H O Jeschke, M Reehuis, E Chan, M-H Lemée-Cailleau, K Beauvois, B Ouladdiaf, F Yokaichiya, F Bert, T J Hicken, J A Krieger, H Luetkens, J L Allen, R Feyerherm, M Tovar, D Menzel, A U B Wolter, B Büchner, K C Rule, F J Litterst, U K Rößler, S Süllow
Published in
Physical review letters. Volume 137. Issue 11. Pages 116701. Sep 11, 2026.
Abstract
We have studied the magnetic properties of clinoatacamite Cu_{2}Cl(OH)_{3}, the parent compound of the quantum spin liquid candidate herbertsmithite and a long-standing puzzle among frustrated quantum magnets. As we reveal using density-functional theory, clinoatacamite belongs to the class of distorted kagome antiferromagnets with the kagome plane being embedded into a low-symmetry crystal structure. By means of thermodynamic measurements, muon spin rotation and relaxation, as well as neutron diffraction on single crystals, we find in zero magnetic field complex behavior below T_{I}=18.1 K which unfolds in three temperature regions I-III. We propose this complexity in multicritical clinoatacamite to arise from the competition of antiferromagnetic ordering modes from the underconstrained manifold of modes, which can lead to a metamagnetic texture in zero field.
PMID:
42789836
Bibliographic data and abstract were imported from PubMed on 26 Sep 2026.
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