2017 Fiscal Year Final Research Report
Development of quantum oscillation measurements using plastic pressure cells under pressure and in pulsed magnetic fields
| Project/Area Number |
15K17700
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | パルス磁場 / プラスチック製圧力装置 / 量子振動 / メタ磁性 |
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| Outline of Final Research Achievements |
In order to avoid heating due to eddy current in pulsed magnetic fields, we have developed pressure cells using insulating plastic materials having high tensile strength. The diamond anvil cell having a pressure chamber of 0.3 mm in diameter and 0.1 mm in height can apply pressure above 10 GPa. We have also developed the system rotating the pressure cell in cryostat. As an application of these systems, semimetallic black phosphorus under pressures have been studied. A clear pressure-induced semiconductor to semimetal transition around 1.5 GPa was confirmed through the direct observation of quantum oscillation. We also studied the metamagnetic behaviors in f-electron systems at ambient pressure.
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| Free Research Field |
極限物性
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