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Exotic superconductivity in the coexistent phase of antiferromagnetism and superconductivity in CeCu2(Si0.98Ge0.02)2: A Cu-NQR study under hydrostatic pressure
Y. Kawasaki, K. Ishida, S. Kawasaki +5
We report a pressure () effect on CeCu(SiGe) where an antiferromagnetic (AFM) order at 0.75 K coexists with superconductivity below $T_c \si…
Divergence of the Grueneisen Ratio at Quantum Critical Points in Heavy Fermion Metals
R. Kuechler, N. Oeschler, P. Gegenwart +8
We present low-temperature volume thermal expansion, , and specific heat, , measurements on high-quality single crystals of CeNi2Ge2 and YbRh2(SiGe) whi…
The break up of heavy electrons at a quantum critical point
J. Custers, P. Gegenwart, H. Wilhelm +7
The point at absolute zero where matter becomes unstable to new forms of order is called a quantum critical point (QCP). The quantum fluctuations between order and disorder that de…
Non-Fermi liquid normal state of the Heavy Fermion superconductor UBe13
P. Gegenwart, C. Langhammer, R. Helfrich +5
Non-Fermi liquid (NFL) behavior in the normal state of the heavy-fermion superconductor UBe13 is studied by means of low-temperature measurements of the specific heat, C, and elect…
Tuning Heavy Fermion Systems into Quantum Criticality by Magnetic Field
P. Gegenwart, J. Custers, T. Tayama +8
We discuss a series of thermodynamic, magnetic and electrical transport experiments on the two heavy fermion compounds CeNi2Ge2 and YbRh2Si2 in which magnetic fields, B, are used t…