Evolution of Hall coefficient in two-dimensional heavy fermion CeCoIn5

Pairing symmetry and two-fluid behavior in the heavy fermion superconductor CeCoIn5

Magnetotransport in d-wave density waves

– Angle dependent magnetoresistance (ADMR) and giant Nernst effect are hallmarks of unconventional density waves (UDW). Here these transport properties for d-wave density wave (d-DW) are computed for quasi-two-dimensional systems. The present theory describes ADMR observed in the pseudogap phase of Y0.68Pr0.32Ba2Cu3O7 and CeCoIn5 single crystals very satisfactorily. Introduction. – As is well k...

Optical conductivity of the heavy fermion superconductor CeCoIn5

The electrodynamic response of the heavy fermion compound CeCoIn5 is studied via infrared spectroscopy. Below 100 K the high temperature Drude-like conductivity evolves into two distinct components. At low energies a narrow mode is observed which is characteristic of the response of heavy quasiparticles. At higher energies a gap structure emerges with 2D;600 cm ~75 meV!. Examination of the fine...

Incoherent non-Fermi-liquid scattering in a Kondo lattice

One of the most notorious non-Fermi-liquid properties of both archetypal heavy-fermion systems and the high-Tc copper oxide superconductors is an electrical resistivity that evolves linearly (rather than quadratically) with temperature, T . In the heavy-fermion superconductor CeCoIn5 (ref. 6), this linear behaviour was one of the first indications of the presence of a zero-temperature instabili...

Quasiparticles and quantum phase transition in universal low - temperature properties of heavy - fermion metals

– We demonstrate, that the main universal features of the low temperature experimental H − T phase diagram of CeCoIn5 and other heavy-fermion metals can be well explained using Landau paradigm of quasiparticles. The main point of our theory is that above quasi-particles form so-called fermion-condensate state, achieved by a fermion condensation quantum phase transition (FCQPT). When a heavy fer...