734 citations
- Rutherford Appleton LaboratoryGB246 papers
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4 papers · 1 filter
Covalent bonding and magnetism in cuprates
A. C. Walters, T. G. Perring, J. -S. Caux +5
The importance of covalent bonding for the magnetism of 3d metal complexes was first noted by Pauling in 1931. His point became moot, however, with the success of the ionic picture…
Critical behavior driven by the confining potential in optical lattices with ultra-cold fermions?
V. L. Campo, J. Quintanilla, C. Hooley
A recent paper [V. L. Campo et. al., Phys. Rev. Lett. 99, 240403 (2007) has proposed a two-parameter scaling method to determine the phase diagram of the fermionic Hubbard model fr…
Spin-lozenge thermodynamics and magnetic excitations in NaRuO
J. T. Haraldsen, M. B. Stone, M. D. Lumsden +5
We report inelastic and elastic neutron scattering, magnetic susceptibility, and heat capacity measurements of polycrystalline sodium ruthenate (NaRuO). Previous work sugge…
Resonant Spin Excitation in the High Temperature Superconductor Ba0.6K0.4Fe2As2
A. D. Christianson, E. A. Goremychkin, R. Osborn +9
The recent observations of superconductivity at temperatures up to 55K in compounds containing layers of iron arsenide have revealed a new class of high temperature superconductors…