TY - JOUR
T1 - High-field moment polarization in the ferromagnetic superconductor UCoGe
AU - Knafo, W.
AU - Matsuda, T. D.
AU - Aoki, D.
AU - Hardy, F.
AU - Scheerer, G. W.
AU - Ballon, G.
AU - Nardone, M.
AU - Zitouni, A.
AU - Meingast, C.
AU - Flouquet, J.
PY - 2012/11/12
Y1 - 2012/11/12
N2 - We report magnetization and magnetoresistivity measurements on the isostructural ferromagnetic superconductors UCoGe and URhGe in magnetic fields up to 60 T and temperatures from 1.5 to 80 K. At low temperature, a moment polarization in UCoGe in a field μ 0Hb of around 50 T leads to well-defined anomalies in both magnetization and magnetoresistivity. These anomalies vanish in temperatures higher than 30-40 K, where maxima in the magnetic susceptibility and the field-induced variation of the magnetoresistivity are found. A comparison is made between UCoGe and URhGe, where a moment reorientation in a magnetic field μ 0Hb of 12 T leads to field-induced reentrant superconductivity.
AB - We report magnetization and magnetoresistivity measurements on the isostructural ferromagnetic superconductors UCoGe and URhGe in magnetic fields up to 60 T and temperatures from 1.5 to 80 K. At low temperature, a moment polarization in UCoGe in a field μ 0Hb of around 50 T leads to well-defined anomalies in both magnetization and magnetoresistivity. These anomalies vanish in temperatures higher than 30-40 K, where maxima in the magnetic susceptibility and the field-induced variation of the magnetoresistivity are found. A comparison is made between UCoGe and URhGe, where a moment reorientation in a magnetic field μ 0Hb of 12 T leads to field-induced reentrant superconductivity.
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U2 - 10.1103/PhysRevB.86.184416
DO - 10.1103/PhysRevB.86.184416
M3 - Article
AN - SCOPUS:84870036879
VL - 86
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 18
M1 - 184416
ER -