|
|||||
|
|
Site selection NMR study on electronic state in and near vortex core of YBa2Cu4O8 |
|
| Authors: | Kosuke KakuyanagiKen-ichi Kumagai Yuji Matsuda |
| Institution: | a Division of Physics, Graduate School of Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan b Institute for Solid State Physics, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8581, Japan |
| Abstract: | We report a site-selective 17O spin-lattice relaxation rate T1−1 in the vortex state of YBa2Cu4O8. We found that T1−1 at the planar sites exhibits an unusual nonmonotonic NMR frequency dependence. Based on T1−1 in the vortex core region, we establish strong evidence that the local density of states within the vortex core is strongly reduced. |
| Keywords: | A Superconductors D Magnetic properties D Nuclear magnetic resonance D Electronic structure |
| 本文献已被 ScienceDirect 等数据库收录！ | |