Superexchange Interaction and Magnetic Moment in Antiferromagnetic High-T_c Copper-oxide Superconductors
| dc.creator | Kitaoka, Yoshio | |
| dc.creator | Mukuda, Hidekazu | |
| dc.creator | Shimizu, Sunao | |
| dc.date | 2009-02-09 | |
| dc.date.accessioned | 2026-07-07T12:39:24Z | |
| dc.date.available | 2026-07-07T12:39:24Z | |
| dc.description | Extensive Cu-NMR studies on multilayered high-Tc cuprates have deduced the following results;(1) Antiferromagnetic (AFM) moment M_{AFM} is decreased with doping, regardless of the number of CuO_2 layers n, and collapses around a carrier density N_h = 0.17. (2) The AFM ordering temperature is enhanced as the out-of-plane coupling J_{out} increases with increasing n. (3) The in-plane superexchange J_{in} is invariant with doping, but is even increased. (4) The dome shape of T_c from the underdoped to the overdoped regime with a maximum T_c at N_h = 0.22 does not depend on n, but its maximum value of T_c seems to depend on n moderately. The present results strongly suggest that the AFM interaction plays the vital role as the glue for the Cooper pairs, which will lead us to a genuine understanding of why the T_c of cuprate superconductors is so high. | |
| dc.description | 3 pages, 2 gigures, Submitted to J. Phys. Soc. Jpn | |
| dc.identifier | https://arxiv.org/abs/0902.1381 | |
| dc.identifier | http://arxiv.org/abs/0902.1381 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/219101 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Superexchange Interaction and Magnetic Moment in Antiferromagnetic High-T_c Copper-oxide Superconductors | |
| dc.type | text |