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CePdAl - a Kondo lattice with partial frustration

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Lucas,  Stefan
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Huesges,  Zita
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Woitschach,  Sarah
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schmidt,  Burkhard
Burkhard Schmidt, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Stockert,  Oliver
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Fritsch, V., Lucas, S., Huesges, Z., Sakai, A., Kittler, W., Taubenheim, C., et al. (2017). CePdAl - a Kondo lattice with partial frustration. Journal of Physics: Conference Series, 807(3): 032003, pp. 1-8. doi:10.1088/1742-6596/807/3/032003.


Cite as: http://hdl.handle.net/21.11116/0000-0001-5E1E-6
Abstract
Magnetic frustration, which is well-defined in insulating systems with localized magnetic moments, yields exotic ground states like spin ices, spin glasses, or spin liquids. In metals magnetic frustration is less well defined because of the incipient delocalization of magnetic moments by the interaction with conduction electrons, viz., the Kondo effect. Hence, the Kondo effect and magnetic frustration are antithetic phenomena. Here we present experimental data of electrical resistivity, magnetization, specific heat and neutron diffraction on CePdAl, which is one of the rare examples of a geometrically frustrated Kondo lattice, demonstrating that the combination of Kondo effect and magnetic frustration leads to an unusual ground state.