| Project/Area Number |
23651101
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | 公益財団法人電磁材料研究所 (2012)
Tohoku University (2011) |
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Principal Investigator |
FUKUHARA Mikio 公益財団法人電磁材料研究所, その他部局等, 研究員 (30400401)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | バリステック伝導 / アモルファス合金 / 金属クラスター / トンネリング / センチメートルサイズ / センチメートル / アモルファス合金、スペイン / 弾道伝道 / 金属クラスタ、アメリカ |
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| Research Abstract |
Ni-Nb-Zr-H glassy alloys with Ni-centered icosahedral Ni_5Zr_5Nb_3 clusters showed centimeter-sized ballistic transport behaviors of 4-fold larger than that of Ag, in low temperature regions up to 223 K, according to increase in degree of amorphousness. Although application of pressure of -8 GPa did not enhance conductivity of the glassy alloys, but changed its sign from negative to positive at 22-25 K. The transport mechanism could be excluded by tunneling of one electron among clusters.
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