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Scientific Article
unige:35635 
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Metallic State in Cubic FeGe Beyond Its Quantum Phase Transition |
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| Published in | Physical Review Letters. 2007, vol. 98, no. 4, p. 047204 | |
| Abstract | We report on results of electrical resistivity and structural investigations on the cubic modification of FeGe under high pressure. The long-wavelength helical order is suppressed at a critical pressure 19 GPa. An anomaly and strong deviations from a Fermi-liquid behavior in a wide pressure range above pc suggest that the suppression of TC disagrees with the standard notion of a quantum critical phase transition. The metallic ground state persisting at high pressure can be described by band-structure calculations if zero-point motion is included. The shortest FeGe interatomic distance display discontinuous changes in the pressure dependence close to the phase line. | |
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| Research group | Groupe Giamarchi | |
| Citation (ISO format) | PEDRAZZINI, Pablo et al. Metallic State in Cubic FeGe Beyond Its Quantum Phase Transition. In: Physical Review Letters, 2007, vol. 98, n° 4, p. 047204. https://archive-ouverte.unige.ch/unige:35635 |
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