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Journal Article

An unconventional metallic state in YbRh2(Si1-xGex)2 - a high pressure study

MPS-Authors
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Mederle,  S.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Borth,  R.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Geibel,  C.
Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Grosche,  F. M.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Sparn,  G.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Trovarelli,  O.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Steglich,  F.
Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Mederle, S., Borth, R., Geibel, C., Grosche, F. M., Sparn, G., Trovarelli, O., et al. (2002). An unconventional metallic state in YbRh2(Si1-xGex)2 - a high pressure study. Journal of Physics-Condensed Matter, 14(44), 10731-10736. doi:10.1088/0953-8984/14/44/367.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-30D2-7
Abstract
We present a detailed pressure study of the electrical resistivity p(T) and the specific heat C(T) of the non-Fermi- liquid (NFL) compound YbRh2Si2, and of p(T) for a single crystal in which 5 at.% of Si is replaced by isoelectronic Ge. The magnetic phase diagram is deduced up to p congruent to 2.5 GPa. A comparison of the effects of the volume change introduced by doping and/or by hydrostatic pressure will be given. We show that the NFL behaviour observed in p (T) as well as the magnetic phase diagram are not influenced by the disorder introduced by alloying.