Universality of surface correlation functions in three-dimensional models

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Physical Review B, ISSN: 0163-1829, Vol: 48, Issue: 18, Page: 13678-13683

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http://digitalcommons.uri.edu/phys_facpubs/265; http://digitalcommons.uri.edu/cgi/viewcontent.cgi?article=1265&context=phys_facpubs
Nightingale, M. P.; Blöte, H. W.J.
American Physical Society (APS); DigitalCommons@URI
Materials Science; Physics and Astronomy
article description
Universality of surface critical behavior with respect to surface enhancement is studied for O(n) models with n=1 (Ising), n=2 (planar rotor), and n=3 (Heisenberg) on simple-cubic lattices. Finite-size methods are employed to estimate surface critical exponents for ordinary surface criticality. In addition, it is shown that universal scaling functions, independent of surface enhancement, can be constructed with all nonuniversal features of the finite-size scaling function of the spin-spin surface correlation functions incorporated in (1) a metric factor and (2) an irrelevant scaling field associated with the surface coupling strength. © 1993 The American Physical Society.