Magnetic properties of the frustrated diamond chain compound Cu-3(CO3)(2)(OH)(2)

摘要

Cu-3(CO3)(2)(OH)(2) (azurite), in which Cu2+ (S = 1/2) monomers and dimers are arranged alternately along the b-axis to make an infinite chain, is regarded as an actual material for the frustrated diamond chain model. we have measured magnetic susceptibility, high field magnetization and H-1 NMR of a natural mineral single crystal of azurite to investigate the magnetic properties. The experimental results were compared with the theoretical expectation to suggest the ground state of Cu-3(CO3)(2)(OH)(2) is in a gapless phase. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 4]