2013 Fiscal Year Final Research Report
A numerical study of meso-scale dynamics in a nanoclusters
| Project/Area Number |
23540459
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
IKEDA Kensuke 立命館大学, 理工学部, 教授 (40151287)
YASUDA Hidehiro 大阪大学, 超高圧電子顕微鏡センター, 教授 (60210259)
SAWADA Shin-ichi 関西学院大学, 理工学部, 教授 (80253904)
NIIYAMA Tomoaki 金沢大学, 機械工学系, 研究員 (00583858)
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| Project Period (FY) |
2011 – 2013
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| Keywords | ナノクラスター / 非線形ダイナミクス / 拡散 / カオス / 集団運動 |
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| Research Abstract |
We have numerically investigated the dynamical properties during longtime evolution of a small manybody system ,such like a nanocluster by developing the tools to scrutinize the individual/collective motion of the constituent elements. Our main results are summarized as follows:
(1)We have elucidated the atomistic mechanism dominating the rapid diffusion in alkali-halide clusters by comparing with that in metal nanoclusters. (2)We have determined the atomistic process of the characteristic motion of the surface reconstruction structure on (100) of an Au nanocluster by searching the metastable structures and a reaction path connecting them. (3)We have investigated the classical and quantum dynamics of two electrons confined in a quantum wire. In particular, we have showed that the newly introduced scaled maximum Lyapunov exponent of the classical counterpart are crucial to determine the property of energy level statistics in the quantum counterpart.
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