2008/03/31 by W Lu, W. Lu, J Yang +9 · 47 citations
Engineering · Materials Science · Physics and Astronomy · #Diamagnetism #Hydrostatic equilibrium #Hydrostatic pressure #Iron-based superconductors research #Magnetic and transport properties of perovskites and related materials #Magnetic susceptibility #Meissner effect #Phase (matter) #SAS software applications and methods #Superconducting coherence length #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1088/1367-2630/10/6/063026
published in New Journal of Physics 10(6), 063026 (IOP Publishing) · 7 pages, 4 figures
arxiv created 2008/04/25 · openalex publication_date 2008/06/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Diamagnetic susceptibility measurements under high hydrostatic pressure (up to 1.03 GPa) were carried out on a newly discovered Fe-based superconductor LaO 1- x F x FeAs ( x =0.11). The transition temperature T C , defined as a point at the maximum slope of superconducting transition, was enhanced almost linearly by hydrostatic pressure, yielding a d T C /d P of about 1.2 K GPa −1 . Differential diamagnetic susceptibility curves indicate that the underlying superconducting state is complicated. It is suggested that pressure plays an important role on pushing the low T C superconducting phase toward the main (optimal) superconducting phase.