Scaling in the Time Domain: Universal Dynamics of Order Fluctuations in Fe 3 Al-Reference-Cited by-同舟云学术

Scaling in the Time Domain: Universal Dynamics of Order Fluctuations in Fe 3 Al

Published:2005-05-27 Issue:5726 Volume:308 Page:1287-1291
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Mocuta Cristian¹²³,Reichert Harald¹²³,Mecke Klaus¹²³,Dosch Helmut¹²³,Drakopoulos Michael¹²³

Affiliation:

1. Max-Planck-Institut für Metallforschung, 70569 Stuttgart, Germany.

2. Institut für Theoretische und Angewandte Physik, Universität Stuttgart, 70569 Stuttgart, Germany.

3. European Synchrotron Radiation Facility, 38043 Grenoble, France.

Abstract

By focusing a highly brilliant synchrotron x-ray beam to a micrometer spot on a sample, we measured in real time the x-ray intensity fluctuations associated with order fluctuations in crystalline materials. We applied this method to the binary alloy Fe 3 Al near its continuous A2-B2 phase transformation and determined a specific four-point time correlation function for the order parameter. From a detailed theoretical analysis, dynamical scaling in the time domain with a transition from noncritical to critical dynamics is disclosed.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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