Title
Critical exponents : can a one-parameter model used for a marginal Fermi liquid be modified to treat disorder in ferromagnets? Critical exponents : can a one-parameter model used for a marginal Fermi liquid be modified to treat disorder in ferromagnets?
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
London ,
Subject
Physics
Chemistry
Source (journal)
Physics and chemistry of liquids. - London
Volume/pages
51(2013) :6 , p. 742-745
ISSN
0031-9104
ISI
000324613600007
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Recently, the authors have employed the one-parameter model of Iqbal, Liu and Mezei (ILM), solved by gravity/conformal field theory (AdS/CFT) duality for the critical exponents , and , to find these quantities for a marginal Fermi liquid. The continuing experimental interest in the effects of disorder on these exponents for ferromagnets has prompted us to apply the ILM one-parameter model semi-empirically to available experimental data in this area, for the categories of appreciable and intermediate disorder. However, for weak disorder, three-dimensional Heisenberg and/or Ising models allow insight into the measured critical exponents cited above.
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