2010 Fiscal Year Final Research Report
NMR study of an A-site-ordered perovskite system
| Project/Area Number |
20740200
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | Kochi University |
|---|
Principal Investigator |
KATO Harukazu Kochi University, 教育研究部自然科学系, 准教授 (60363272)
|
|---|
| Research Collaborator |
MATSUMURA Masahiro 高知大学, 教育研究部自然科学系, 教授
NISHIOKA Takashi 高知大学, 教育研究部自然科学系, 教授
KAMBE Shinsaku 日本原子力研究開発機構, 研究員
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 強相関系 / Aサイト秩序ペロブスカイト酸化物 / 核磁気共鳴 / 電荷移動 |
|---|
| Research Abstract |
I have carried out nuclear magnetic resonance (NMR) studies of an A-site-ordered perovskite system A'Cu_3Ru_4O_<12>(A'=Ca,Sr,La and so on). The effective density of states in CaCu_3Ru4O_<12> and SrCu_3Ru_4O_<12> changes in its magnitude across TX～180K (Ca) and 200K (Sr). This is related to possible charge transfer between Cu and Ru ions, which might owe to electronic correlation of the Cu-3d and Ru-4d electrons.
|
