| Project/Area Number |
24654114
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
IKEGAMI Hiroki 独立行政法人理化学研究所, 河野低温物理研究室, 専任研究員 (70313161)
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| Co-Investigator(Renkei-kenkyūsha) |
AKIMOTO Hikota 独立行政法人理化学研究所, 支援チーム, チームヘッド (60202545)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 超流動ヘリウム３ / 表面束縛状態 / トポロジカル超流動 / マヨラナ粒子 / マイクロ構造 / 毛管凝縮 / 微小SQUID |
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| Research Abstract |
I made basic investigation to develop a new measurement system using the capillary condensation effect and a micro-SQUID for demonstrating Majorana nature of surface bound states at a free surface of the superfluid 3He-B. I fabricated micro-channel structures of a width 1-10 micrometer, and investigated the properties of the liquid helium capillary-condensed in the micro-channels. From the observed transport properties of electrons trapped on the surface of the capillary-condensed liquid 4He, I showed that the surface of the condensed liquid has an expected shape. I further showed that the oscillation observed when the electron density was varied arose from the reentrant melting of a Wigner crystal.
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