Phys. Rev. Lett. 61, 966 - 969 (1988)Collective Behavior of Supercooled Liquids in Porous Media |
M. B. Ritter, D. D. Awschalom, and M. W. Shafer
IBM Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598
Received 18 May 1988
The macroscopic behavior of a restricted liquid has been studied through ultrasonic velocity and attenuation measurements utilizing a picosecond colliding-pulse optical technique. Transparent porous sol-gel glasses allowed a study of the collective fluid dynamics as a function of confining pore radius and temperature. The acoustic response of the supercooled state was found to be strikingly different from that of any ordinary liquid, and consistent with a simple model.
©1988 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v61/p966
DOI: 10.1103/PhysRevLett.61.966
PACS: 64.70.Dv, 62.60.+v, 68.45.Nj
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