2015/11/17 by Raman Sankar, Sankar, Raman, G. Narsinga Rao +25
Materials Science · #2D Materials and Applications #Advanced Thermoelectric Materials and Devices #FOS: Physical sciences #Iron-based superconductors research #Superconductivity (cond-mat.supr-con)
paper · pdf · doi:10.48550/arxiv.1511.05295
openalex publication_date 2015/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The single crystal growth and superconducting properties of PbTaSe2 with non-centrosymmetric crystal structure is reported. Using the chemical vapor transport (CVT) technique, PbTaSe2 crystallizes in a layered structure and the crystal symmetry has been shown belonging to a non-centrosymmetric space group P6-m2 confirmed by the consistent band picture near the Fermi level between the angle-resolved photoemission spectrum (ARPES) and theoretical calculations. Superconductivity with Tc =3.83 K has been characterized fully with electrical resistivity \rho(T), magnetic susceptibility \chi(T), and specific heat C(T) measurements using single crystal samples. The superconducting anisotropy, electron-phonon coupling λep, superconducting energy gap Δ0, and the specific heat jump ΔC/λTc at Tc confirms that PbTaSe2 can be categorized as a weakly coupled type-II superconductor.