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Journal Article

New results for quantum critical behavior in strongly correlated electron systems


Stockert,  O.
Oliver Stockert, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Löhneysen, H. V., Pfleiderer, C., Schröder, A., & Stockert, O. (2002). New results for quantum critical behavior in strongly correlated electron systems. Journal of Physics and Chemistry of Solids, 63(12), 2155-2162. doi:10.1016/S0022-3697(02)00249-4.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-30CC-8
Studies of zero temperature magnetic phase transitions that exhibit an abundance of nearly critical magnetic fluctuations allow to probe the traditional concepts of the metallic state. For the prototypical heavy fermion compound CeCu6-xAux a breakdown of the Fermi-liquid description may be tuned by either Au-concentration, hydrostatic pressure, uniaxial stress or magnetic field. The d-electron Laves phase ZrZn2, on the other hand, was recently found to display superconductivity in coexistence with itinerant ferromagnetism. (C) 2002 Elsevier Science Ltd. All rights reserved.