Zobrazeno 1 - 10
of 48
pro vyhledávání: '"L. A. S. Mól"'
Publikováno v:
Brazilian Journal of Physics. 52
The use of partition function zeros in the study of phase transition is growing in the last decade mainly due to improved numerical methods as well as novel formulations and analysis. In this paper the impact of different parameters choice for the en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17d7e15edcf51364e2ee8f1f3cc1941d
https://doi.org/10.1007/s13538-021-01021-3
https://doi.org/10.1007/s13538-021-01021-3
Publikováno v:
Physical review. E. 104(6-1)
Partition function zeros play a central role in the study of phase transitions. Recently, energy probability distribution (EPD) zeros were proposed as an alternative approach that solves some of the implementation issues present in the Fisher zeros m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a25cd924404a4e12ca41b7621e9fee7
https://pubmed.ncbi.nlm.nih.gov/35030829
https://pubmed.ncbi.nlm.nih.gov/35030829
Publikováno v:
Brazilian Journal of Physics. 49:271-276
Topological phase transitions such as the Berezinskii-Kosterlitz-Thouless (BKT) transition are difficult to characterize due to the difficulty in defining an appropriate order parameter or to unravel its critical properties. In this paper, we discuss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cb180f22bcd52bb416e76962e5b3733
https://doi.org/10.1007/s13538-019-00636-x
https://doi.org/10.1007/s13538-019-00636-x
Publikováno v:
Journal of Statistical Physics. 175:960-971
The two-dimensional (2d) fully frustrated Planar Rotator model on a square lattice has been the subject of a long controversy due to the simultaneous $$Z_2$$ and O(2) symmetry existing in the model. The O(2) symmetry being responsible for the Berezin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a3465b2ea644364ade463e2538c7e1b
https://doi.org/10.1007/s10955-019-02271-x
https://doi.org/10.1007/s10955-019-02271-x
Autor:
L. A. S. Mól, A. R. Pereira, J. H. Rodrigues, Paulo P. Freitas, C. I. L. de Araujo, T. S. de Paiva, Jérôme Borme
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
In this paper we perform nanofabrication of square artificial spin ices with different lattice parameters, in order to investigate the roles of vertex excitation on the features of the system. In particular, the character of magnetic charge distribut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::801af34bcaee61cbf6ccc8bfed820f60
https://doi.org/10.1038/s41598-020-66794-0
https://doi.org/10.1038/s41598-020-66794-0
Autor:
J.H. Rodrigues, L. A. S. Mól
Publikováno v:
Journal of Magnetism and Magnetic Materials. 458:327-334
In this paper we seek for detectable modifications in system properties induced by the Coulombian interactions between magnetic monopoles in an artificial spin ice system as an attempt to provide theoretical support to experiments devoted to measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4058fcbd911cb2a5a0d7116c3017d986
https://doi.org/10.1016/j.jmmm.2018.03.032
https://doi.org/10.1016/j.jmmm.2018.03.032
Publikováno v:
Computer Physics Communications. 216:77-83
In the study of phase transitions a very few models are accessible to exact solution. In the most cases analytical simplifications have to be done or some numerical technique has to be used to get insight about their critical properties. Numerically,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62570421e50d85a5f2fcd6022813f828
https://doi.org/10.1016/j.cpc.2017.03.003
https://doi.org/10.1016/j.cpc.2017.03.003
Autor:
L. A. S. Mól, R. A. Stancioli
Publikováno v:
Physical Review B. 100
In this paper we conduct Monte Carlo simulations to investigate the thermodynamic properties of a geometry of artificial spin ice recently proposed in the literature that had been termed "rewritable" spin ice, for its experimental realization allows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abd17096f4659662421f298e7a75f6d4
https://doi.org/10.1103/physrevb.100.024432
https://doi.org/10.1103/physrevb.100.024432
Publikováno v:
Computer Physics Communications. 209:88-91
Using the two dimensional X Y − ( S ( O ( 3 ) ) ) model as a test case, we show that analysis of the Fisher zeros of the canonical partition function can provide signatures of a transition in the Berezinskii–Kosterlitz–Thouless ( B K T ) univer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e500537f6cc41bb3da96b33c8fd97224
https://doi.org/10.1016/j.cpc.2016.08.016
https://doi.org/10.1016/j.cpc.2016.08.016
Publikováno v:
New Journal of Physics, Vol 15, Iss 4, p 045029 (2013)
Dynamical effects under geometrical frustration are considered in a model for artificial spin ice on a square lattice in two dimensions. Each island of the spin ice has a three-component Heisenberg-like dipole moment subject to shape anisotropies tha
Externí odkaz:
https://doaj.org/article/5904471c4848465e92ed9bb8d8d57e96