Work

External Magnetic Field Effects on a Distorted Kagome Antiferromagnet

Year: 2008

Type: article

Abstract: We report bulk magnetization, and elastic and inelastic neutron scattering measurements under an external magnetic field H on the weakly coupled distorted kagome system, Cu2(OD)3Cl. Our results show that the ordered state below 6.7 K is a canted antiferromagnet and consists of large antiferromagnetic ac components and smaller ferromagnetic b components. By first-principles calculations and linear spin wave analysis, we present a simple spin Hamiltonian with nonuniform nearest neighbor exchange interactions resulting in a system of coupled spin trimers with a single-ion anisotropy that can qualitatively reproduce the spin dynamics of Cu2(OD)3Cl.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.101.107201

Authors: J.-H. Kim, S. Ji, S.-H. Lee, B. Lake, T. Yildirim, H. Nojiri, H. Kikuchi, K. Habicht, Y. Qiu, K. Kiefer

Institutions: University of Virginia, National Institute of Standards and Technology, NIST Center for Neutron Research, Technische Universität Berlin, Tohoku University, Institute for Materials Research, Tohoku University, University of Fukui

Language: English

Topic: Advanced Condensed Matter Physics

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2078093873

FWCI: 2.602

Cites: 15

Cited by: 34

Related to: 10