Monte Carlo Study of Mixed-Spin S=1-2,1 Ising Ferrimagnets - Condensed Matter > Materials ScienceReport as inadecuate




Monte Carlo Study of Mixed-Spin S=1-2,1 Ising Ferrimagnets - Condensed Matter > Materials Science - Download this document for free, or read online. Document in PDF available to download.

Abstract: We investigate Ising ferrimagnets on square and simple-cubic lattices withexchange couplings between spins of values S=1-2 and S=1 on neighbouring sitesand an additional single-site anisotropy term on the S=1 sites. Based mainly ona careful and comprehensive Monte Carlo study, we conclude that there is notricritical point in the two-dimensional case, in contradiction to mean-fieldpredictions and recent series results. However, evidence for a tricriticalpoint is found in the three-dimensional case. In addition, a line ofcompensation points is found for the simple-cubic, but not for the squarelattice.



Author: W. Selke J. Oitmaa

Source: https://arxiv.org/



DOWNLOAD PDF




Related documents