Third sound in one and two dimensional modulated structures

T. Komuro, H. Kawashima, Keiya Shirahama, K. Kono

Research output: Contribution to journalArticle

Abstract

An experimental technique is developed to study acoustic transmission in one and two-dimensional modulated structures by employing third sound of a superfluid helium film. In particular, the Penrose lattice, which is a two-dimensional quasiperiodic structure, is studied. In two dimensions, the scattering of third sound is weaker than in one dimensions. Nevertheless, we find that the transmission spectrum in the Penrose lattice, which is a two-dimensional prototype of the quasicrystal, is observable if the helium film thickness is chosen around 5 atomic layers. The transmission spectra in the Penrose lattice are explained, in terms of dynamical theory of diffraction.

Original languageEnglish
Pages (from-to)359-364
Number of pages6
JournalJournal of Low Temperature Physics
Volume102
Issue number3-4
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

helium film
Acoustic waves
acoustics
Superfluid helium
Quasicrystals
Helium
Film thickness
film thickness
Diffraction
Acoustics
prototypes
Scattering
scattering
diffraction

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Third sound in one and two dimensional modulated structures. / Komuro, T.; Kawashima, H.; Shirahama, Keiya; Kono, K.

In: Journal of Low Temperature Physics, Vol. 102, No. 3-4, 1996, p. 359-364.

Research output: Contribution to journalArticle

Komuro, T, Kawashima, H, Shirahama, K & Kono, K 1996, 'Third sound in one and two dimensional modulated structures', Journal of Low Temperature Physics, vol. 102, no. 3-4, pp. 359-364.
Komuro, T. ; Kawashima, H. ; Shirahama, Keiya ; Kono, K. / Third sound in one and two dimensional modulated structures. In: Journal of Low Temperature Physics. 1996 ; Vol. 102, No. 3-4. pp. 359-364.
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