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Exotic superconducting properties in the electron-hole-compensated heavy-fermion "Semimetal" URu2Si2.
It is shown that the charge and thermal transport measurements on ultraclean crystals of URu2Si2 reveal a number of unprecedented superconducting properties including the first-order transition at Hc2 with a reduction of entropy flow.
Angular position of nodes in the superconducting gap of quasi-2D heavy-fermion superconductor CeCoIn5.
The thermal conductivity measurement of the heavy-fermion superconductor CeCoIn5 reveals a first-order transition at H(c2), indicating a Pauli limited superconducting state and implying that the anisotropic antiferromagnetic fluctuation is relevant to the superconductivity.
Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe
High-pressure magnetotransport measurements in FeSe are reported, which uncover the dome shape of magnetic phase superseding the nematic order and highlight unique features of FeSe among iron-based superconductors, but bears some resemblance to that of high-Tc cuprates.
A Quantum Critical Point Lying Beneath the Superconducting Dome in Iron Pnictides
Whether a quantum critical point (QCP) lies beneath the superconducting dome has been a long-standing issue that remains unresolved in many classes of unconventional superconductors, notably
Crystal structure of lithium molybdenum purple bronze Li0.9Mo6O17
Abstract The crystal structure of the molybdenum ternary oxide Li0.9Mo6O17 is determined by single-crystal X-ray diffraction. The crystal is monoclinic with space group P2 1 m and the lattice
Thermodynamic evidence for a nematic phase transition at the onset of the pseudogap in YBa 2 Cu 3 O y
The pseudogap is an elusive state that is believed to play an important role in the mechanism for high-temperature superconductivity. A torque-magnetometry study of YBCO reveals that its onset is
Extremely strong-coupling superconductivity in artificial two-dimensional Kondo lattices
Unconventional superconductivity is usually associated with a layered system. But how thin can a layered superconductor be and continue to be superconducting? Painstakingly grown superlattices of the
Multiband superconductivity in the heavy fermion compound PrOs4Sb12.
The thermal conductivity of the heavy fermion superconductor Pr(Os(4)Sb(12) was measured down to T(c)/40 throughout the vortex state, which is a clear signature of multiband superconductivity in this compound.
Dichotomy between the Hole and Electron Behavior in Multiband Superconductor FeSe Probed by Ultrahigh Magnetic Fields.
The low-field magnetotransport data in the normal state suggest that, in addition to one hole and one almost compensated electron band, the orthorhombic phase of FeSe exhibits an additional tiny electron pocket with a high mobility.
Quasiparticle mass enhancement close to the quantum critical point in BaFe2(As(1-x)P(x))2.
The results show that the sharp peak in the inverse superfluid density seen in this system results from a strong increase in the quasiparticle mass at the quantum critical point.