Modified kagome physics in the natural spin-1/2 kagome lattice systems - kapellasite Cu3Zn(OH)6Cl2 and haydeeite Cu3Mg(OH)6Cl2

Abstract

The recently discovered natural minerals Cu3Zn(OH)6Cl2 and Cu3Mg(OH)6Cl2 are spin 1/2 systems with an ideal kagome geometry. Based on electronic structure calculations, we develop a realistic model which includes couplings across the kagome hexagons beyond the original kagome model that are intrinsic in real kagome materials. Exact diagonalization studies for the derived model reveal a strong impact of these couplings on the magnetic ground state. Our predictions could be compared to and supplied with neutron scattering, thermodynamic and NMR data.

5 pages, 5 figures, 1 table

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Cited by in corpus (59)

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• Spontaneous symmetry breakings in two-dimensional kagome lattice
• Origin of Magnetic Ordering in a Structurally-Perfect Quantum Kagome Antiferromagnet
• Peculiar long-range superexchange in Cu2A2O7 (A = P, As, V) as a key element of the microscopic magnetic model
• Coupled frustrated quantum spin-1/2 chains with orbital order in volborthite Cu3V2O7(OH)2(H2O)2
• Electronic structure and magnetic properties of the spin-1/2 Heisenberg system CuSe2O5
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• Large quantum fluctuations in the strongly coupled spin-1/2 chains of green dioptase: a hidden message from birds and trees
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• $ab$-$initio$ Approaches for Low-Energy Spin Hamiltonians
• Spin-1/2 Heisenberg antiferromagnet on an anisotropic kagome lattice
• Crystal water induced switching of magnetically active orbitals in CuCl2
• Emergent quasi-one-dimensionality in a kagomé magnet: A simple route to complexity
• Interaction-driven fractional quantum Hall state of hard-core bosons on kagome lattice at one-third filling
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• Ab initio determination of spin Hamiltonians with anisotropic exchange interactions: the case of the pyrochlore ferromagnet Lu${}_2$V${}_2$O${}_7$
• Non-Coplanar Magnetic Orders in Classical Square-Kagome Antiferromagnets
• Uniform spin chain physics arising from NCN bridges in CuNCN: surprises on the way from copper oxides to their nitride analogs
• How correlations change the magnetic structure factor of the kagome Hubbard model
• The route to magnetic order in the spin-$1/2$ kagome Heisenberg antiferromagnet: The role of interlayer coupling
• Degenerate and chiral states in the extended Heisenberg model in the kagome lattice
• Magnetic phase diagram of the coupled triangular spin tubes for CsCrF4
• Interplay of atomic displacements in the quantum magnet (CuCl)LaNb2O7
• Noncoplanar orders and quantum disordered states in maple-leaf (anti)ferromagnets
• Ternary borides Nb${}_7$Fe${}_3$B${}_8$ and Ta${}_7$Fe${}_3$B${}_8$ with Kagome-type iron framework
• Emergent skyrmion-based chiral order in zero-field Heisenberg antiferromagnets on the breathing kagome lattice
• Antiferromagnetism in kagome $\alpha$-Cu${}_3$Mg(OH)${}_6$Br${}_2$
• Electronic structure of KTi(SO4)2.H2O - a S=1/2 frustrated chain antiferromagnet
• Intrinsic peculiarities of real material realizations of a spin-1/2 kagome lattice
• Noncoplanar multi-k states in frustrated spinel and kagome magnets
• Classical ground states of spin lattices
• Short-range order and hidden energy scale in geometrically frustrated magnets
• Regular magnetic orders in triangular and kagome lattices
• Fractional Spin Quantum Hall Effect in Weakly Coupled Spin Chain Arrays
• Crystal chemistry criteria of the existence of spin liquids on the kagome lattice
• Pressure-tuned spin chains in brochantite, Cu${}_4$SO${}_4$(OH)${}_6$
• The magnetization process of classical Heisenberg magnets with non-coplanar cuboc ground states
• Phase Transitions for Cuboc Orders in Stacked Kagome Heisenberg Systems
• Emergence of magnetic long-range order in kagome quantum antiferromagnets