Physics – Condensed Matter – Superconductivity
Scientific paper
2004-07-09
J. Phys. Soc. Jpn. 73, 2944 (2004)
Physics
Condensed Matter
Superconductivity
4 pages, 4figures, submitted to J. Phys. Soc. Jpn
Scientific paper
10.1143/JPSJ.73.2944
We report the local magnetic response of an electron-doped cuprate superconductor, Pr$_{0.89}$LaCe$_{0.11}$CuO$_{4}$ ($T_c\simeq26$ K), studied by muon spin rotation (\msr) over a field range from 200 Oe to 50 kOe. In the paramagnetic state, the muon Knight shift along the crystal c-axis ($K_\mu^z$) is proportional to the in-plane susceptibility $\chi_{ab}$. More surprisingly, $K_\mu^z$ is strongly enhanced by the occurrence of superconductivity (below $\sim$40 kOe), changing its sign from positive to negative around $\sim1$ kOe with increasing field. This finding can be understood by considering the weak polarization of Pr ions due to superexchange interaction with the antiferromagnetic Cu sublattice, which coexists with superconductivity.
Fujita Masaki
Higemoto Wataru
Kadono Ryosuke
Koda Akihiro
Kojima Kenji M.
No associations
LandOfFree
Strong correlation between field-induced magnetism and superconductivity in Pr$_{0.89}$LaCe$_{0.11}$CuO$_{4}$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Strong correlation between field-induced magnetism and superconductivity in Pr$_{0.89}$LaCe$_{0.11}$CuO$_{4}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strong correlation between field-induced magnetism and superconductivity in Pr$_{0.89}$LaCe$_{0.11}$CuO$_{4}$ will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-725823