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cond-mat.str-el2007★ 90 cited
Non-resonant inelastic x-ray scattering involving excitonic excitations
M. W. Haverkort, A. Tanaka, L. H. Tjeng +1
In a recent publication Larson \textit{et al.} reported remarkably clear - excitations for NiO and CoO measured with x-ray energies well below the transition metal edge.…
cond-mat.str-el2005★ 139 cited
Many-body spin Berry phases emerging from the -flux state: antiferromagnetic/valence-bond-solid competition
Akihiro Tanaka, Xiao HU
We uncover new topology-related features of the -flux saddle-point solution of the =2+1 Heisenberg antiferromagnet. We note that symmetries of the spinons sustain a built-in…