Project/Area Number |
19540385
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
|
Research Institution | Japan Atomic Energy Agency |
Principal Investigator |
YASUOKA Hiroshi Japan Atomic Energy Agency, 先端基礎研究センター, 研究員 (50026027)
|
Co-Investigator(Kenkyū-buntansha) |
KAMBE Shinsaku 日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (40224886)
HAGA Yoshinori 日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (90354901)
|
Project Period (FY) |
2007 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
Keywords | 核磁気共鳴 / 重い電子系 / 局在・非局在 / 超伝導 |
Research Abstract |
(1) From the detailed NMR measurements for Sn and In nuclei in typical uranium compounds, USn_3 and UIn_3, we have clarified that an antiferromagnetic spin fluctuation is playing the essential role of the electronic state of high temperatures. (2) ^<27>Al NMR shift and relaxation studies have clarified an d-wave superconductivity in newly developed Np compound, NpPd_5Al_2. It is also found that high temperature spin dynamics is highly anisotropic, having dramatic decrease of the fluctuations along the c-axis at low temperature.
|