Publication: Research - peer-review › Journal article – Annual report year: 1993
The temporal magnetization-direction fluctuations in the three-dimensional classical ferromagnetic Heisenberg model have been generated by Monte Carlo simulation and analyzed by the rescaled-range method to yield the Hurst exponent H. A value of H congruent-to 1 has been found to apply in the ferromagnetic phase characterizing fractional Brownian motion, whereas a value H congruent-to 0. 5, reflecting ordinary Brownian motion, applies in the paramagnetic phase. A field-induced crossover from fractional to ordinary Brownian motion has been observed in the ferromagnetic phase.
|Journal||Physical Review E. Statistical, Nonlinear, and Soft Matter Physics|
|State||Published - 1993|
Copyright (1993) by the American Physical Society.
|Citations||Web of Science® Times Cited: No match on DOI|
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