An unconventional metallic state in YbRh2(Si1 xGex)2 a high pressure study
| Autor: | S. Mederle, G. Sparn, O. Trovarelli, C. Geibel, F. M. Grosche, Frank Steglich, R. Borth |
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| Rok vydání: | 2002 |
| Předmět: |
Specific heat
Condensed matter physics Chemistry Hydrostatic pressure Doping State (functional analysis) Condensed Matter Physics Metal Impurity Electrical resistivity and conductivity visual_art visual_art.visual_art_medium Condensed Matter::Strongly Correlated Electrons General Materials Science Single crystal |
| Zdroj: | Journal of Physics: Condensed Matter. 14:10731-10736 |
| ISSN: | 0953-8984 |
| DOI: | 10.1088/0953-8984/14/44/367 |
| Popis: | We present a detailed pressure study of the electrical resistivity ρ(T) and the specific heat C(T) of the non-Fermi-liquid (NFL) compound YbRh2Si2 and of ρ(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 ~ = 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 ρ(T) as well as the magnetic phase diagram are not influenced by the disorder introduced by alloying. |
| Databáze: | OpenAIRE |
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