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We present the hydrothermal synthesis, as well as structural and chemical analysis, of single crystals of EuCu₃(OH)₆Cl₃, ZnₓCu_4-x(OH)₆(NO₃)₂ and haydeeite, and MgCu₃(OH)₆Cl₂ compounds, all arising from the atacamite family. Magnetic and specific-heat measurements down to 1.8 K are carried out for these systems. EuCu₃(OH)₆Cl₃ has a frustrated antiferromagnetic Cu²⁺ ground state with order at 15 K, and a strong anisotropy and increased magnetization from Van Vleck paramagnetic Eu³⁺ contributions. ZnCu₃(OH)₆(NO₃)₂ reveals antiferromagnetic order at 9 K and measurements on haydeeite single crystals confirm the ferromagnetic order at 4.2 K with the easy axis within the kagome plane. These results prove that the atacamite family presents a broad class of materials with interesting magnetic ground states.
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