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001048341 1001_ $$0P:(DE-Juel1)203359$$aHeinze, Leonie$$b0$$eCorresponding author$$ufzj
001048341 1112_ $$aMunich Quantum Matter Days$$cMunich$$d2025-10-27 - 2025-10-31$$wGermany
001048341 245__ $$aMagnetism of the distorted kagome material clinoatacamite Cu$_2$Cl(OH)$_3$
001048341 260__ $$c2025
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001048341 520__ $$aStructurally, the mineral clinoatacamite Cu$_2$Cl(OH)$_3$ is closely related to the kagome material herbertsmithite Zn$_3$CuCl$_2$(OH)$_6$. In clinoatacamite, however, the kagome motif of Cu sites is embedded into a low-symmetry crystal structure, which causes a distortion of the kagome plane as well as different site symmetries for the kagome Cu sites. Unlike the quantum spin liquid candidate herbertsmithite, clinoatacamite undergoes a magnetic transition at 18.1 K. Its magnetic ground states have remained inconclusive to date. Here, we will revisit the magnetic properties using single-crystalline material. We will first demonstrate using density-functional theory that the dominant magnetic exchange couplings in this material form non-uniform antiferromagnetic kagome layers of Cu sites with weak ferromagnetic couplings to the interlayer Cu site. Further, we have characterized clinoatacamite by means of thermodynamic measurement techniques, muon spin rotation/relaxation as well as neutron diffraction. We reveal a zero-field magnetic phase diagram which is far more complex than previously anticipated. We discuss our data within a scenario of competing order parameters on the inequivalent Cu sites.
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001048341 65027 $$0V:(DE-MLZ)SciArea-170$$2V:(DE-HGF)$$aMagnetism$$x0
001048341 65027 $$0V:(DE-MLZ)SciArea-120$$2V:(DE-HGF)$$aCondensed Matter Physics$$x1
001048341 65017 $$0V:(DE-MLZ)GC-1604-2016$$2V:(DE-HGF)$$aMagnetic Materials$$x0
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001048341 7001_ $$0P:(DE-HGF)0$$aKastner, C.$$b1
001048341 7001_ $$0P:(DE-HGF)0$$aJeschke, H. O.$$b2
001048341 7001_ $$0P:(DE-HGF)0$$aReehuis, M.$$b3
001048341 7001_ $$0P:(DE-HGF)0$$aBeauvois, K.$$b4
001048341 7001_ $$0P:(DE-HGF)0$$aOuladdiaf, B.$$b5
001048341 7001_ $$0P:(DE-HGF)0$$aYokaichiya, F.$$b6
001048341 7001_ $$0P:(DE-HGF)0$$aBert, F.$$b7
001048341 7001_ $$0P:(DE-HGF)0$$aHicken, T. J.$$b8
001048341 7001_ $$0P:(DE-HGF)0$$aKrieger, J. A.$$b9
001048341 7001_ $$0P:(DE-HGF)0$$aLuetkens, H.$$b10
001048341 7001_ $$0P:(DE-HGF)0$$aAllen, J. L.$$b11
001048341 7001_ $$0P:(DE-HGF)0$$aFeyerherm, R.$$b12
001048341 7001_ $$0P:(DE-HGF)0$$aMenzel, D.$$b13
001048341 7001_ $$0P:(DE-HGF)0$$aWolter, A. U. B.$$b14
001048341 7001_ $$0P:(DE-HGF)0$$aRule, K. C.$$b15
001048341 7001_ $$0P:(DE-HGF)0$$aLitterst, F. J.$$b16
001048341 7001_ $$0P:(DE-HGF)0$$aRößler, U. K.$$b17
001048341 7001_ $$0P:(DE-HGF)0$$aSüllow, S.$$b18
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