The correction-to-scaling exponent in dilute systems |
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Authors: | R Folk Yu Holovatch T Yavors’kii |
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Institution: | (1) Institute for Theoretical Physics, University of Linz, A-4040 Linz, Austria;(2) Institute for Condensed Matter Physics, Ukrainian Academy of Sciences, UA-290011 Lvov, Ukraine;(3) Ivan Franko Lvov State University, UA-290005 Lvov, Ukraine |
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Abstract: | The leading correction-to-scaling exponent ω for the three-dimensional (3D) dilute Ising model is calculated in the framework of the field theoretic renormalization group
approach. Both in the minimal subtraction scheme and in the massive field theory (resummed four-loop expansion) excellent
agreement with recent Monte Carlo calculations (H. G. Ballesteros et al., Phys. Rev. B 58, 2740 (1998)) is achieved. The expression of ω as a series in a
expansion up to O(ɛ2) does not permit a reliable estimate for d=3.
Pis’ma Zh. éksp. Teor. Fiz. 69, No. 10, 698–702 (25 May 1999)
Published in English in the original Russian journal. Edited by Steve Torstveit. |
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