Magnetic Properties of the Spin-1/2 Deformed Kagome Antiferromagnet Edwardsite

Abstract

We prepared a powder sample of edwardsite Cd2Cu3(SO4)2(OH)6 4H2O, which is a new candidate compound for the spin-1/2 kagome antiferromagnet, and studied its magnetic properties by magnetic susceptibility and heat capacity measurements. Edwardsite has a deformed kagome lattice with an average antiferromagnetic interaction of 51 K between nearby spins and shows an antiferromagnetic order accompanied by a small ferromagnetic moment below 4.3 K. The weak ferromagnetism is likely due to spin canting caused by sizable Dzyaloshinsky-Moriya interactions, which may stabilize the long-range magnetic order instead of a spin-liquid state expected for the kagome antiferromagnet.

5 pages, 6 figures, accepted for publication in J. Phys. Soc. Jpn

References in corpus (9)

• Vesignieite BaCu3V2O8(OH)2 as a Candidate Spin-1/2 Kagome Antiferromagnet
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Cited by in corpus (10)

• Gapless spin-liquid ground state in the $S=1/2$ kagome antiferromagnet
• Quantum Magnetism in Minerals
• Kagome-Triangular Lattice Antiferromagnet NaBa2Mn3F11
• Topological Magnetic Excitations on the Distorted Kagome Antiferromagnets: Applications to Volborthite, Vesignieite, and Edwardsite
• The route to magnetic order in the spin-$1/2$ kagome Heisenberg antiferromagnet: The role of interlayer coupling
• Ternary borides Nb${}_7$Fe${}_3$B${}_8$ and Ta${}_7$Fe${}_3$B${}_8$ with Kagome-type iron framework
• Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet
• Phase diagram of multiferroic KCu${}_3$As${}_2$O${}_7$(OD)${}_3$
• Geometric frustration and Dzyaloshinskii-Moriya interactions in a quantum star lattice hybrid copper sulfate
• Crystal chemistry criteria of the existence of spin liquids on the kagome lattice