Broadening of the surface Andreev bound states band of superfluid 3He-B on a partially specular wall

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

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A measurement of the surface Andreev bound states of the superfluid 3He-B phase under different boundary conditions is presented. Transverse-acoustic impedance spectroscopy was used to determine the bandwidth of the bound states on a wall with various specularities. It was found that the band was broader for larger specularity and filled up the superfluid gap above a critical specularity. Specularity was controlled by coating the wall with thin layers of 4H e and was evaluated separately using acoustic impedance measurement in the normal-fluid phase.

Original languageEnglish
Article number214516
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number21
DOIs
Publication statusPublished - 2008 Dec 1

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Acoustic impedance measurement
Acoustic impedance
acoustic impedance
Boundary conditions
Spectroscopy
Bandwidth
Coatings
Fluids
impedance measurement
boundary conditions
bandwidth
coatings
fluids
spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Broadening of the surface Andreev bound states band of superfluid 3He-B on a partially specular wall. / Wada, Yuichiro; Murakawa, Satoshi; Tamura, Yuta; Saitoh, Masamichi; Aoki, Yuki; Nomura, Ryuji; Okuda, Yuichi.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 21, 214516, 01.12.2008.

Research output: Contribution to journalArticle

Wada, Yuichiro ; Murakawa, Satoshi ; Tamura, Yuta ; Saitoh, Masamichi ; Aoki, Yuki ; Nomura, Ryuji ; Okuda, Yuichi. / Broadening of the surface Andreev bound states band of superfluid 3He-B on a partially specular wall. In: Physical Review B - Condensed Matter and Materials Physics. 2008 ; Vol. 78, No. 21.
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