Two-length-scale problem in critical scattering: Narrow-component line shape
- 1 July 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 56 (1), 166-169
- https://doi.org/10.1103/physrevb.56.166
Abstract
High-resolution studies of critical scattering indicate the presence of two different length scales in a variety of structural and magnetic phase transitions. In a previous work the anomalous scaling behavior of the narrow component in magnetic systems (Ho and Tb) has been attributed to long-ranged correlated quenched disorder in the near surface region. Here we point out that this disorder can also give rise to a line shape steeper than a Lorentzian, in agreement with experimental observations.Keywords
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