2016 Fiscal Year Final Research Report
Creation of concerted function by insertion of magnetic atomic group into skeletal structure made of metalloid element - New design of magnetic semiconductor -
| Project/Area Number |
15K13795
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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 |
Inorganic industrial materials
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 金属間化合物 / 高圧合成 / 結晶化学 / 磁性半導体 / 金属ーメタロイド系 / 共有結合 |
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| Outline of Final Research Achievements |
Intermetallic compounds in transition metal - metalloid systems, that can be expected to exhibit various electrical and magnetic properties, have much attractive attention from the viewpoint of surveying magnetic semiconductors. In this study, novel inter metallic compounds in which magnetic metal chains are inserted in the covalent metalloid skeletons were synthesized under high-pressure / temperature reaction field. We have succeeded in synthesizing a novel ferromagnetic defect disilicide-type intermetallic compound Crn(Ge, Si)m and found that its Curie temperature has a strong correlation with m/n. In addition, we successfully synthesized a new ferrimagnetic intermetallic compound, Mn(Al, Ge)5, and confirmed it shows a spin glass like behavior at low temperature.
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| Free Research Field |
無機材料・物性
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