2008 Fiscal Year Final Research Report
Transverse acoustic wave spectroscopy of surface bound states in superfluid helium 3
Project/Area Number |
19540361
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Tokyo Institute of Technology |
Principal Investigator |
NOMURA Ryuji Tokyo Institute of Technology, 大学院・理工学研究科, 助教 (00323783)
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Co-Investigator(Kenkyū-buntansha) |
OKUDA Yuichi 東京工業大学, 大学院・理工学研究科, 教授 (50135670)
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Project Period (FY) |
2007 – 2008
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Keywords | 超流動ヘリウム3 / 表面束縛状態 / 表面状態密度 / 超音波分光 / P波超流動 |
Research Abstract |
超流動ヘリウム3のB相における表面状態密度には、超流動ギャップエネルギー以下に束縛状態バンドが現れる。このバンド幅が、壁の鏡面度が大きくなるに従い広くなることを見出した。また音響インピーダンスの温度依存性に新たな異常が表れることを観測した。この異常は有限の鏡面度のとき、表面状態密度のゼロエネルギー状態が強く抑制されることによって説明された。
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[Journal Article] Surface condition dependence of transverse acoustic impedance in superfluid ^3He, Journal of Physics2009
Author(s)
S. Murakawa, Y. Wada, Y. Tamura, M. Saitoh, Y. Aoki, R. Nomura, Y. Okuda, Y. Nagato, M. Yamamoto, S. Higashitani and K. Nagai
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Journal Title
Conference Series 150
Pages: 032070-1-4
Peer Reviewed
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[Presentation] Surface Condition Dependence of the Surface Andreev Bound States of Superfluid ^3He-B Measured by Transverse Acoustic Impedance2008
Author(s)
S. Murakawa, Y. Wada, Y. Tamura, M. Wasai, M. Saitoh, Y. Aoki, R. Nomura, Y. Okud, Y. Nagato, M. Yamamoto, S. Higashitani and K. Nagai
Organizer
ULT2008 ; Frontiers of Low Temperature Physics
Place of Presentation
Royal Holloway University of London, England
Year and Date
2008-08-14
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[Presentation] Surface condition dependence of Transverse Acoustic Impedance in Superuid 3He2008
Author(s)
S. Murakawa, Y. Wada, Y. Tamura, M. Saitoh, Y. Aoki, R. Nomura, Y. Okuda, Y. Nagato, M. Yamamoto, S. Higashitani, and K. Nagai
Organizer
25^<th> international conference on Low Temperature Physics (LT25)
Place of Presentation
RAI Conference Center, Amsterdam, Netherlands
Year and Date
2008-08-13
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[Presentation] Surface Andreev bound states of superfluid 3He on a specularity controlled wall2008
Author(s)
R. Nomura, S. Murakawa, Y. Wada, Y. Tamura, M. Saitoh, Y. Aoki, Y. Okuda, Y. Nagato, M. Yamamoto, S. Higashitani, and K. Nagai
Organizer
25^<th> international conference on Low Temperature Physics (LT25)
Place of Presentation
RAI Conference Center, Amsterdam
Year and Date
2008-08-08
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