Non-classical behaviour in an S=5/2 chain with next nearest neighbour interactions observed from the inelastic neutron scattering of Mn-2(OD)(2)(C4O4)

Mole, RA; Stride, JA; Unruh, T; Wood, PT

Non-classical behaviour in an S=5/2 chain with next nearest neighbour interactions observed from the inelastic neutron scattering of Mn-2(OD)(2)(C4O4)

Date

2009-02-18

Authors

Publisher

Institute of Physics

Abstract

Low-dimensional and frustrated magnetic systems often show interesting quantum phenomena. The use of large moments such as S = 5/2 within such materials is uncommon, partly due to the evidence that the large manifold of states associated with these centres results in pseudo-classical behaviour. Here we report on the inelastic neutron scattering of Mn-2(OD)(2)(C4O4), a well-isolated chain with next nearest neighbour interactions. We observe a magnetic excitation spectrum below 30 K whose characteristics resemble those of quantum spin singlets. Inelastic neutron scattering from a powdered sample is shown to yield a great deal of information about the nature of these effects. © 2009, Institute of Physics

Keywords

Magnetic properties, Inelastic scattering, Spin, Antiferromagnetism, Dimerization, Behavior

Citation

Mole, R. A., Stride, J. A., Unruh, T., & Wood, P. T. (2009). Non-classical behaviour in an S=5/2 chain with next nearest neighbour interactions observed from the inelastic neutron scattering of Mn-2(OD)(2)(C4O4). Journal of Physics: Condensed Matter, 21(7), 124217. doi:10.1088/0953-8984/21/7/076003