Physics – Condensed Matter – Superconductivity
Scientific paper
2011-02-25
J. Phys. Soc. Jpn. 80, 043706 (2011). [selected as Editors' Choice]
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures, to be published in Journal of the Physical Society of Japan, Vol.80, No.4
Scientific paper
10.1143/JPSJ.80.043706
We report on the observation of high-T_c superconductivity (SC) emerging with the background of an antiferromagnetic (AFM) order in the five-layered cuprate Ba_2Ca_4Cu_5O_10(F,O)_2 through 19F-NMR and zero-field Cu-NMR studies. The measurements of spectrum and nuclear spin-lattice relaxation rates 19(1/T_1) of 19F-NMR give convincing evidence for the AFM order taking place below T_N = 175 K and for the onset of SC below T_c = 52 K, hence both coexisting. The zero-field Cu-NMR study has revealed that AFM moments at Cu sites are 0.14 mu_B at outer CuO_2 layers and 0.20 mu_B at inner ones. We remark that an intimate coupling exists between the AFM state and the SC order parameter below T_c = 52 K; the spin alignment in the AFM state is presumably changed in the SC-AFM mixed state.
Iyo Akira
Kitaoka Yoshio
Kito Hideo
Mukuda Hidekazu
Shimizu Seiya
No associations
LandOfFree
High-T_c Superconductivity with T_c = 52 K under Antiferromagnetic Order in Five-layered Cuprate Ba_2Ca_4Cu_5O_10(F,O)_2 with T_N = 175 K: 19F- and Cu-NMR Studies 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 High-T_c Superconductivity with T_c = 52 K under Antiferromagnetic Order in Five-layered Cuprate Ba_2Ca_4Cu_5O_10(F,O)_2 with T_N = 175 K: 19F- and Cu-NMR Studies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-T_c Superconductivity with T_c = 52 K under Antiferromagnetic Order in Five-layered Cuprate Ba_2Ca_4Cu_5O_10(F,O)_2 with T_N = 175 K: 19F- and Cu-NMR Studies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-710168