Local spin susceptibility of theS=12kagome lattice in ZnCu3(OD)6Cl2

2011/03/31 by T. Imai, Takashi Imai, M. Fu +2 · 2 citations
Chemistry · Physics and Astronomy · #Advanced Condensed Matter Physics #Chemistry #Condensed matter physics #Crystallography #Knight shift #Magnetic susceptibility #Physics #Physics of Superconductivity and Magnetism #Spin (aerodynamics) #Spins #Thermodynamics #Topological Materials and Phenomena #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.84.020411

published as Physical Review B 84, 020411(R), (2011) · 4 figures; published in PR-B Rapid Communications

openalex publication_date 2011/07/21 · arxiv created 2011/07/27 · arxiv updated 2011/07/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report a single-crystal ²D NMR investigation of the nearly ideal spin S=1/2 kagome lattice ZnCu₃(OD)₆Cl₂. We successfully identify ²D NMR signals originating from the nearest neighbors of Cu²⁺ defects occupying Zn sites. From the ²D Knight-shift measurements, we demonstrate that weakly interacting Cu²⁺ spins at these defects cause the large Curie-Weiss enhancement toward T=0 commonly observed in the bulk susceptibility data. We estimate the intrinsic spin susceptibility of the kagome planes by subtracting defect contributions, and explore several scenarios.

Citations

• Magnetic susceptibility and specific heat of the spin- (1)/(2) Heisenberg model on the kagome lattice and experimental data on ZnCu3(OH)6Cl2
• Properties of an algebraic spin liquid on the kagome lattice
• Spin Dynamics of the Spin-1/2Kagome Lattice AntiferromagnetZnCu3(OH)6Cl2
• U(1) Gauge Theory of the Hubbard Model: Spin Liquid States and Possible Application toκ−(BEDT−TTF)2Cu2(CN)3
• Spin Liquid State in an Organic Mott Insulator with a Triangular Lattice
• Spin-1/2 Kagomé-Like Lattice in Volborthite Cu3V2O7(OH)2·2H2O

Cited by

• Chemistry of Quantum Spin Liquids
• Symmetry Reduction in the Quantum Kagome Antiferromagnet Herbertsmithite