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Evolution of Quantum Criticality in CeNi_{9-x}Cu_xGe_4
L. Peyker, C. Gold, E. -W. Scheidt +7
Crystal structure, specific heat, thermal expansion, magnetic susceptibility and electrical resistivity studies of the heavy fermion system CeNi_{9-x}Cu_xGe_4 (0 <= x <= 1) reveal…
Divergence of the Magnetic Grüneisen Ratio at the Field-Induced Quantum Critical Point in YbRhSi
Y. Tokiwa, T. Radu, P. Gegenwart +2
The heavy fermion compound YbRhSi is studied by low-temperature magnetization and specific-heat measurements at magnetic fields close to the quantum critical…
Possible re-entrant superconductivity in EuFe2As2 under pressure
C. F. Miclea, M. Nicklas, H. S. Jeevan +6
We studied the temperature-pressure phase diagram of EuFe2As2 by measurements of the electrical resistivity. The antiferromagnetic spin-density-wave transition at T_0 associated wi…
High-Temperature Superconductivity in Eu0.5K0.5Fe2As2
H. S. Jeevan, Z. Hossain, Deepa Kasinathan +3
Subsequent to our recent report of SDW type transition at 190 K and antiferromagnetic order below 20 K in EuFe2As2, we have studied the effect of K-doping on the SDW transition at…
Electrical Resistivity and Specific Heat of EuFe2As2 Single Crystals: Magnetic homologue of SrFe2As2
H. S. Jeevan, Z. Hossain, Deepa Kasinathan +3
We have grown single crystals of EuFe2As2 and investigated its electrical transport and thermodynamic properties. Electrical resistivity and specific heat measurements clearly esta…
Quantum Criticality in Heavy Fermion Metals
Philipp Gegenwart, Qimiao Si, Frank Steglich
Quantum criticality describes the collective fluctuations of matter undergoing a second-order phase transition at zero temperature. Heavy fermion metals have in recent years emerge…