Neutron scattering from a coordination polymer quantum paramagnet

Schmidt KP (2006)


Publication Status: Published

Publication Type: Journal article

Publication year: 2006

Journal

Publisher: AMER PHYSICAL SOC

Book Volume: 74

Journal Issue: 9

DOI: 10.1103/PhysRevB.74.094434

Abstract

Inelastic neutron scattering measurements are reported for a powder sample of the spin-1/2 quantum paramagnet Cu(quinoxaline)Br-2. Magnetic neutron scattering is identified above an energy gap of 1.9 meV. Analysis of the sharp spectral maximum at the onset indicates that the material is magnetically quasi-one-dimensional. Consideration of the wave vector dependence of the scattering and polymeric structure further identifies the material as a two-legged spin-1/2 ladder. Detailed comparisons of the data to various models of magnetism in this material based on the single-mode approximation and the continuous unitary transformation are presented. The latter theory provides an excellent account of the data with leg exchange J(parallel to)=2.0 meV and rung exchange J(perpendicular to)=3.3 meV.

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How to cite

APA:

Schmidt, K.P. (2006). Neutron scattering from a coordination polymer quantum paramagnet. Physical Review B, 74(9). https://doi.org/10.1103/PhysRevB.74.094434

MLA:

Schmidt, Kai Phillip. "Neutron scattering from a coordination polymer quantum paramagnet." Physical Review B 74.9 (2006).

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