Vesignieite BaCu3V2O8(OH)2 as a Candidate Spin-1/2 Kagome Antiferromagnet

By Y. Okamoto, H. Yoshida, Z. Hiroi. 2009

146 citations recorded by the source corpus.

A polycrystalline sample of vesignieite BaCu 3 V 2 O 8 (OH) 2 comprising a nearly ideal kagome lattice composed of Cu 2+ ions carrying spin 1/2 has been synthesized and studied by magnetization and heat capacity measurements. Magnetic susceptibility shows a neither long range order, a spin glass transition nor a spin gap down to 2 K, in spite of a moderately strong antiferromagnetic interaction of J / k B =53 K between nearest-neighbor spins. A broad peak observed at a temperature corresponding to 0.4 J in intrinsic magnetic susceptibility indicates a marked development of the short-range order. The ground state of vesignieite is probably a gapless spin liquid or is accompanied by a very small gap less than ∼ J /30.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/6864cf2a2b3813cbdd3627ee044a80a38705a655

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Expanding frontiers in materials chemistry and physics with multiple anions (2018, background): “Volborthite Cu3V2O7(OH)22H2O and vesignieite BaCu3V2O8(OH)2 with trans-CuO4(OH)2 octahedra having different orbital arrangements composed of dx2−y2 / dz2 and dz2 orbitals, respectively, thus enriching the phase diagram of the kagomé antiferromagnet.(86)”