2009/03/25 by Awadhesh Mani, Nilotpal Ghosh, S. Paulraj +2 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Chemistry #Condensed matter physics #Crystallite #Crystallography #Electrical resistivity and conductivity #Iron-based superconductors research #Materials science #Metallurgy #Physics #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #Single crystal #Spin density wave #Superconducting transition temperature #Superconductivity #Transition temperature #cond-mat.supr-con
paper · pdf · doi:10.1209/0295-5075/87/17004
published as Eur. Phys. Lett. 87 (2009) 17004 · 17 Pages; 4 figures
arxiv created 2009/03/25 · openalex publication_date 2009/07/01 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The evolution of pressure-induced superconductivity in single crystal as well as polycrystalline samples of BaF e 2 As 2 have been investigated through temperature-dependent electrical resistivity studies in the 0–7 GPa pressure range. While the superconducting transition remains incomplete in the polycrystalline sample, a clear pressure-induced superconductivity with zero resistivity at the expense of magnetic transition, associated with spin density wave (SDW), is observed in the single-crystal sample. The superconducting transition temperature ( T C ) is seen to increase upto a moderate pressure of about ∼1.5 GPa and decreases monotonically beyond this pressure. The SDW transition temperature T SDW decreases rapidly with increasing pressure and vanishes above ∼1.5 GPa.