Kalyan Sasmal

LiFeAs: An intrinsic FeAs-based superconductor with Tc=18 K

The synthesis and properties of LiFeAs, a high-

Evidence for multiple gaps in the specific heat of LiFeAs crystals

{T}_{c}

Lower critical field, anisotropy, and two-gap features of LiFeAs

Fe-based superconducting stoichiometric compound, are reported. Single crystal x-ray studies reveal that it crystallizes in the tetragonal PbFCl type (P4/nmm) with

Superconducting Fe-based compounds (A1-xSrx)Fe2As2 with A=K and Cs with transition temperatures up to 37 K.

a=3.7914(7)\text{ }\text{\AA{}}

The synthesis and characterization of LiFeAs and NaFeAs

and

Effect of pressure on the superconducting and spin-density-wave states of SmFeAsO 1 − x F x

c=6.364(2)\text{ }\text{\AA{}}

Raman spectroscopy of RFeAsO (R=Sm, La)

. Unlike the known isoelectronic undoped intrinsic FeAs compounds, LiFeAs does not show any spin-density wave behavior but exhibits superconductivity at ambient pressures without chemical doping. It exhibits a respectable transition temperature of

Superconductivity in ternary iron pnictides: AFe2As2 (A = alkali metal) and LiFeAs

{T}_{c}=18\text{ }\text{K}

Unusual doping dependence of superconductivity in Na y FeAs

with electronlike carriers and a very high critical field,

Pressure Effects on the Superconducting and Spin-Density-Wave States of the Newly Discovered Sm(O1-xFx)FeAs

{\text{H}}_{c2}(0)g80\text{ }\text{T}