| Project/Area Number |
26800178
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | Japan Atomic Energy Agency (2016)
The University of Tokyo (2014-2015) |
|---|
Principal Investigator |
Kofu Maiko 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 J－PARCセンター, 任期付研究員 (70549568)
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Keywords | 単分子磁石 / 中性子散乱 / 希土類元素 |
|---|
| Outline of Final Research Achievements |
We have investigated spin dynamics of single-molecule magnets (SMM) with lanthanide ions by means of neutron scattering techniques. The complexes with Kramers ion, Ce and Nd, echibit the SMM behavior; the relaxation of magnetization reversal is observed in the millisecond range. On the other hand, the complex with non-Kramers ion, Pr, is non-SMM. Inelastic neutron scattering works demonstrated that magnetic excitations are not detectable in the Ce and Nd complexes, while the Pr one clearly displays a low-energy excitation peak. These results suggest that spin parity is deeply correlated with magnetization reversal and appearance of low-energy excitations.
|
