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The Surface Density of States of Superfluid 3He for Different Surface Boundary Conditions

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Abstract

We measured the complex transverse acoustic impedance of superfluid 3He in the B phase by coating a surface with 4He to study the boundary condition dependence of the surface bound states. Observed features in the temperature dependence were similar to those without 4He coating. However, temperatures showing singularities became higher and variations in the dependence became smaller. The small variations indicated that a specular surface was realized by the 4He coating. Increase in the singularity temperature indicated that the bandwidth of the surface Andreev bound states became broader by the coating.

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Author notes

  1. Masamichi Saitoh

    Present address: Low Temperature Physics Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, 351-0198, Japan

  2. Yuki Aoki

    Present address: Rutgers University, Piscataway, NJ, 08854, USA

Authors and Affiliations

  1. Department of Condensed Matter Physics, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan

    Satoshi Murakawa, Yuichiro Wada, Yuta Tamura, Masamichi Saitoh, Yuki Aoki, Ryuji Nomura & Yuichi Okuda

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  1. Satoshi Murakawa
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  2. Yuichiro Wada
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  3. Yuta Tamura
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  4. Masamichi Saitoh
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  5. Yuki Aoki
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  6. Ryuji Nomura
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  7. Yuichi Okuda
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Corresponding author

Correspondence to Satoshi Murakawa.

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Murakawa, S., Wada, Y., Tamura, Y. et al. The Surface Density of States of Superfluid 3He for Different Surface Boundary Conditions. J Low Temp Phys 150, 154–159 (2008). https://doi.org/10.1007/s10909-007-9527-2

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  • DOI: https://doi.org/10.1007/s10909-007-9527-2

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