2017 Fiscal Year Final Research Report
Unconventional superconductivity studied by scanning SQUID microscopy
| Project/Area Number |
16K17742
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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) |
2016-04-01 – 2018-03-31
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| Keywords | 磁気顕微鏡 / 超伝導 / トポロジカル / ベリー位相 |
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| Outline of Final Research Achievements |
We first developed scanning SQUID microscopy system working at very low temperatures. Next, by using such a system, we examined anomalous magnetic properties of the chiral antiferromagnet Mn3Sn. Our local magnetization measurements demonstrate the possibility that a boundary current arising from the Berry curvature induces an itinerant orbital magnetization in Mn3Sn. In addition, we have succeeded in detecting the superconducting vortex of the unconventional superconductor Fe(Se,S). However, we cannot observe a signature of pre-formed pairing above the superconducting transition temperature Tc.
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| Free Research Field |
超伝導
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