TY - JOUR
T1 - Third sound in one and two dimensional modulated structures
AU - Komuro, T.
AU - Kawashima, H.
AU - Shirahama, K.
AU - Kono, K.
PY - 1996/1/1
Y1 - 1996/1/1
N2 - 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.
AB - 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.
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U2 - 10.1007/BF00754668
DO - 10.1007/BF00754668
M3 - Article
AN - SCOPUS:25844524175
SN - 0022-2291
VL - 102
SP - 359
EP - 364
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 3-4
ER -