Hall effect across the quantum phase transition of CeCu6-xAux

Bartolf, H.; Pfleiderer, C.; Stockert, O.; Vojta, M.; Löhneysen, H. v.

doi:10.1016/j.physb.2004.12.065

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Hall effect across the quantum phase transition of CeCu_6-xAu_x

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

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Citation

Bartolf, H., Pfleiderer, C., Stockert, O., Vojta, M., & Löhneysen, H. v. (2005). Hall effect across the quantum phase transition of CeCu_6-xAu_x. Physica B-Condensed Matter, 359-361, 86-88. doi:10.1016/j.physb.2004.12.065.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-2CFF-6

Abstract

While CeCu66 is a Pauli-paramagnetic heavy-fermion (HF) system, Au doping introduces long-range incommensurate antiferromagnetism for x>xc≈0.1x>xc≈0.1. At the critical concentration xcxc, the system experiences a quantum phase transition (QPT). Here, both unusual magnetic fluctuations, studied by inelastic neutron scattering, and non-Fermi-liquid behavior, i.e. to anomalous low-temperature thermodynamic and transport properties have been observed. We report on Hall effect measurements that probe the electronic structure of heavy fermions across the critical concentration xcxc of the QPT.