Dynamical lattice instability versus spin liquid state in a frustrated spin chain system

Details Dynamical lattice instability versus spin liquid state in a frustrated spin chain system Dynamical lattice instability versus spin liquid state in a frustrated spin chain system

2012-03-13

arxiv.org/abs/1203.2818v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 6 figures

Scientific paper

The low-dimensional s=1/2 compound (NO)[Cu(NO3)3] has recently been suggested to follow the Nersesyan-Tsvelik model of coupled spin chains. Such a system shows unbound spinon excitations and a resonating valence bond ground state due spin frustration. Our Raman scattering study demonstrates phonon anomalies as well as the suppression of a broad magnetic scattering continuum for temperatures below a characteristic temperature, T

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