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cond-mat.str-el2002
Oscillating Solitons Pinned to a Nonmagnetic Impurity in Layered Antiferromagnets
L. A. S. Mól, A. R. Pereira, W. A. Moura-Melo
We argue that an oscillatory motion of impurity-pinned solitons may occur in layered antiferromagnetic compounds. The characteristic frequencies of these modes, that may be detecte…
cond-mat2002
Monte Carlo study of the critical temperature for the planar rotator model with nonmagnetic impurities
S. A. Leonel, Pablo Zimmermann Coura, A. R. Pereira +2
We performed Monte Carlo simulations to calculate the Berezinskii-Kosterlitz-Thouless (BKT) temperature for the two-dimensional planar rotator model in the presence of no…