Y.S. Kwon

In situ fabrication of cobalt-doped SrFe2As2 thin films by using pulsed laser deposition with excimer laser

The remarkably high superconducting transition temperature and upper critical field of iron(Fe)-based layered superconductors, despite ferromagnetic material base, open the prospect for superconducting electronics. However, success in superconducting electronics has been limited because of difficulties in fabricating high-quality thin films. We report the growth of high-quality c-axis-oriented cobalt(Co)-doped SrFe2As2 thin films with bulk superconductivity by using an in-situ pulsed laser deposition technique with a 248-nm-wavelength KrF excimer laser and an arsenic(As)-rich phase target. The temperature and field dependences of the magnetization showing strong diamagnetism and transport critical current density with superior Jc-H performance are reported. These results provide necessary information for practical applications of Fe-based superconductors.

Kondo-like behavior in magnetic and thermal properties of single-crystal Tm 5 Si 2 Ge 2

A stoichiometric

Interplay of the superconductivity and magnetism in Eu0.7Na0.3Fe2As1.4P0.6

{text{Tm}}_{5}{text{Si}}_{2.0ifmmodepmelsetextpmfi{}0.1}{text{Ge}}_{2.0ifmmodepmelsetextpmfi{}0.1}

Magnetic properties of heavy fermion system Ce1−xGdxCoSi3

single crystal was grown using the Bridgeman method and was examined by x-ray diffraction, energy dispersive spectroscopy, magnetization, ac and dc magnetic susceptibilities, specific heat, electrical resistivity, and x-ray photoemission spectroscopy experiments.

Hybridization gap collapse at a quantum critical point of CeNi1-xCoxGe2

{text{Tm}}_{5}{text{Si}}_{2.0ifmmodepmelsetextpmfi{}0.1}{text{Ge}}_{2.0ifmmodepmelsetextpmfi{}0.1}

Hybridization gap collapse at a quantum critical point of CeNi1-xCoxGe2CeNi1-xCoxGe2

was found to crystallize with an orthorhombic

Non-Fermi-liquid behaviors in Ce1-xGdxCoSi3

{text{Sm}}_{5}{text{Ge}}_{4}

Continuity of Ce 4f electronic structure across the quantum critical point : A resonant photoemission study on CeNi1-xCoxGe2

-type structure. The mean valence of Tm ions in

Hybridization gap-open in CeIn3

{text{Tm}}_{5}{text{Si}}_{2.0ifmmodepmelsetextpmfi{}0.1}{text{Ge}}_{2.0ifmmodepmelsetextpmfi{}0.1}

Fabrication of cobalt-doped SrFe 2As 2 superconducting thin films

was almost trivalent. The