Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Volume
78
Issue
6
Abstract
We compare magnetotransport of the three iron-arsenide-based compounds ReFeAsO Re=La, Sm, Nd in very high DC and pulsed magnetic fields up to 45 and 54 T, respectively. Each sample studied exhibits a superconducting transition temperature near the maximum reported to date for that particular compound. While high magnetic fields do not suppress the superconducting state appreciably, the resistivity, Hall coefficient, and critical magnetic fields, taken together, suggest that the phenomenology and superconducting parameters of the oxypnictide superconductors bridges the gap between MgB2 and YBCO.
