Quantum antiferromagnet bluebellite comprising a maple-leaf lattice made of spin-1/2 Cu${}^{2+}$ ions

Abstract

Spin-1/2 maple leaf lattice antiferromagnets are expected to show interesting phenomena originating from frustration effects and quantum fluctuations. We report the hydrothermal synthesis of a powder sample of bluebellite Cu${}_6$IO${}_3$(OH)${}_{10}$Cl as a first potential candidate. Magnetization and heat capacity measurements reveal moderate frustration with a Curie-Weiss temperature of $-35$ K, and a magnetic transition at $T_N$ = 17 K. Surprisingly, the magnetic susceptibility and heat capacity above $T_N$ are well reproduced by the Bonner-Fisher model, which suggests that a one-dimensional spin correlation with a magnetic interaction of 25 K occurs in the apparently two-dimensional lattice. This emergent one-dimensionality cannot be explained by orbital ordering or dimensional reduction due to geometrical frustration. We believe that there is an unknown mechanism to cause one-dimensionality in the spin-1/2 maple leaf lattice antiferromagnet.

7 pages, 5 figures, 2 tables, accepted for publication in Physical Review B

References in corpus (7)

• Quantum magnetism in the paratacamite family: towards an ideal kagome lattice
• Vesignieite BaCu3V2O8(OH)2 as a Candidate Spin-1/2 Kagome Antiferromagnet
• Spin Liquid Phase in Anisotropic Triangular Lattice Heisenberg Model: Exact diagonalization and density-matrix renormalization group calculations
• One-dimensionalization by Geometrical Frustration in the Anisotropic Triangular Lattice of the 5d Quantum Antiferromagnet Ca3ReO5Cl2
• Emergence of One-Dimensional Physics from the Distorted Shastry-Sutherland Lattice
• Dimensional reduction by geometrical frustration in a cubic antiferromagnet composed of tetrahedral clusters
• Anisotropic Triangular Lattice Realized in Rhenium Oxychlorides A3ReO5Cl2 (A = Ba and Sr)

Cited by in corpus (13)

• Another Exact Ground State of a 2D Quantum Antiferromagnet
• Candidate quantum disordered intermediate phase in the Heisenberg antiferromagnet on the maple-leaf lattice
• Noncoplanar orders and quantum disordered states in maple-leaf (anti)ferromagnets
• Dimensional reduction in quantum spin-1/2 system on a 1/7-depleted triangular lattice
• Effective spin-1 breathing kagome Hamiltonian induced by the exchange hierarchy in the maple leaf mineral bluebellite
• Candidate quantum spin liquids on the maple-leaf lattice
• Spin-half Heisenberg antiferromagnet on a symmetric sawtooth chain: Rotation-invariant Green's functions and high-temperature series
• Tensor network analysis of the maple-leaf antiferromagnet spangolite
• Spin Nernst and thermal Hall effects of topological triplons in quantum dimer magnets on the maple-leaf and star lattices
• Unconventional orders in the maple-leaf ferro-antiferromagnetic Heisenberg model
• Thermodynamics of the Heisenberg antiferromagnet on the maple-leaf lattice
• Crystallography-driven molecularization of a two-dimensional spin-$3/2$ magnet
• Spin excitation of the Heisenberg antiferromagnet with frustration: from the bounce-lattice antiferromagnet through the maple-leaf-lattice antiferromagnet to the exact-dimer system