Heavy fermion Ce3Co4Sn13 compound under pressure
نویسندگان
چکیده
منابع مشابه
Observation of field-induced single impurity behavior in the heavy fermion compound Ce3Co4Sn13
We have performed heat capacity measurements in magnetic fields to 90 kOe on single crystals of the cubic heavy fermion compound Ce3Co4Sn13. In zero field, there are no signs of long-range magnetic order down to 0.35K. However, C=T increases rapidly below 2K, reaching a very large maximum value of 4 J=mol Ce–K around 0.8K in zero field, and the high-field magnetic entropy approaches R ln 2 at 2...
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The compound Ce3Co4Sn13 is an extremely heavy cubic heavy fermion system with a low temperature electronic specific heat of order 4 J=molK. If the compound is nonmagnetic, it would be one of the heaviest nonmagnetic Ce-based heavy fermions reported to date and therefore would be expected to lie extremely close to a quantum critical point. However, a broad peak of unknown origin is observed at 0...
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The electrical resistivity and ac magnetic susceptibility of the heavy-fermion compound Ce7Ni3 were measured in the temperature range from 0.4 to 300 K and in the pressure range up to 1.5 GPa. The Néel temperature of 1.9 K for antiferromagnetic transition at ambient pressure decreases with increasing pressure and vanishes at about 0.33 GPa. The magnetic resistivity, rm5r~Ce7Ni3)-r(La7Ni3), decr...
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The specific heat of Ce3Co4Sn13 exhibits a crossover from heavy Fermion behavior with antiferromagnetic correlations at low field to single impurity Kondo behavior above 2T. We have performed neutron diffraction measurements in magnetic fields up to 6T on single crystal samples. The (0 0 1) position shows a dramatic increase in intensity in field which appears to arise from static polarization ...
متن کاملPressure-induced non-Fermi-liquid behavior in a heavy-fermion compound Ce7Ni3 around the antiferromagnetic instability
Under increasing pressure, the Néel temperature of the heavy-fermion compound Ce7Ni3 ~TN51.9 K for P50! decreases and vanishes near Pc'0.33 GPa. Non-Fermi-liquid behavior appears at 0.4 GPa in both the specific heat and ac magnetic susceptibilitiy, Cm /T;2lnT and xac}(12aT ). Above 0.62 GPa, the normal Fermi-liquid state recovers, as indicated by the T independence of CmT and the T 2 dependence...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2015
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.4913304