Record number :
Title of article :
Anisotropic interface motion of 4He crystal induced by acoustic waves Original Research Article
Author/Authors :
Ryuji Nomura، نويسنده , , Futoshi Ogasawara، نويسنده , , Yu Saitoh، نويسنده , , Haruka Abe، نويسنده , , Yuichi Okuda، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
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Abstract :
Interface motions of 4He crystals induced by acoustic waves were investigated in various surface orientations. Inversion of a direction of the force on the interface was observed in the case of acoustic wave from the crystal side above a particular temperature Ti. Ti was about 0.8 K in rough surface and decreased to 0.6 K with approaching the c-facet. These observations were qualitatively explained assuming that the interface motion was induced by acoustic radiation pressure. Relaxation of the interface after stopping the acoustic wave was observed by a high-speed video camera.
Keywords :
A. Surfaces , C. Ultrasonic measurements , D. Phonons , D. Phase transitions
Journal title :
Journal of Physics and Chemistry of Solids
Link To Document :