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Fermi surface and antiferromagnetism in the Kondo lattice: an asymptotically exact solution in d>1 Dimensions
Seiji J. Yamamoto, Qimiao Si
Interest in the heavy fermion metals has motivated us to examine the quantum phases and their Fermi surfaces within the Kondo lattice model. We demonstrate that the model is solubl…
Evolution of the low energy spin dynamics in electron-doped high-transition temperature superconductor Pr0.88LaCe0.12CuO4-d
Stephen D. Wilson, Shiliang Li, Pengcheng Dai +7
We use inelastic neutron scattering to explore the evolution of the low energy spin dynamics in the electron-doped cuprate Pr0.88LaCe0.12CuO4-d (PLCCO) as the system is tuned from…
Zero-Temperature Magnetic Transition in an Easy-Axis Kondo Lattice Model
Jian-Xin Zhu, Stefan Kirchner, Ralf Bulla +1
We address the quantum transition of a spin-1/2 antiferromagnetic Kondo lattice model with an easy-axis anisotropy using the extended dynamical mean field theory. We derive results…
Multiple energy scales at a quantum critical point
P. Gegenwart, T. Westerkamp, C. Krellner +6
We report thermodynamic measurements in a magnetic-field-driven quantum critical point of a heavy fermion metal, YbRhSi. The data provide evidence for an energy scale in th…