Neutron scattering studies on a c-axis polarized B2u phonon and magnetic excitations of the YBa2Cu3-xZnxO6+y system were carried out. For YBa2Cu2.9Zn0.1O6.75, anomalies of the B2u mode related to the spin (pseudo) gap formation are insensitive to the Zn-doping. In the magnetic excitation spectra of YBa2Cu3O6+y samples which are close to the metal-insulator phase boundary, a gap-like structure can be seen at high temperatures, while at low temperatures the low energy spectral weights increase and the gap-like structure disappears. This suggests that the itinerant nature has an important role in the spin gap formation.
|頁（從 - 到）||1087-1089|
|期刊||Journal of Physics and Chemistry of Solids|
|出版狀態||Published - 1999|
|事件||Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn|
持續時間: 1998 11月 24 → 1998 11月 27
All Science Journal Classification (ASJC) codes
- 化學 (全部)