Zobrazeno 1 - 10
of 37
pro vyhledávání: '"N. S. Branco"'
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 481:34-40
We study the one-dimensional Potts model with long-range interactions decaying with distance r as r 1 + σ . An extended mean-field renormalisation-group procedure is applied, such that three finite-size linear lattices are compared, in order to eval
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb9f8b2606d90c989aab0c6cf018104e
https://doi.org/10.1016/j.physa.2017.04.001
https://doi.org/10.1016/j.physa.2017.04.001
Autor:
N. S. Branco, E.A. Cotta, Jonathas N. Silva, H.D. Fonseca Filho, Octavio D. Rodriguez Salmon, Minos A. Neto
Publikováno v:
Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Made available in DSpace on 2021-06-25T11:55:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-05-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) FAPEAM this study, we investigated the quantization of magnetization a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84e4c6b6dd93986fe0a37794525ed867
https://doi.org/10.1016/j.jpcs.2021.109988
https://doi.org/10.1016/j.jpcs.2021.109988
Autor:
Ian Jordy Lopez Diaz, N. S. Branco
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 540:123014
We study the magnetic and thermodynamic properties of a spin- 1 ∕ 2 Ising system containing three layers, each of which is composed exclusively of one out of two possible types of atoms, A or B. The A-A and B-B bonds are ferromagnetic while the A-B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d16eff46d6f38c20cd5806c94d32657
https://doi.org/10.1016/j.physa.2019.123014
https://doi.org/10.1016/j.physa.2019.123014
Autor:
N. S. Branco, Ian Jordy Lopez Diaz
We present a Monte Carlo study of the magnetic properties of an Ising multilayer ferrimagnet. The system consists of two kinds of non-equivalent planes, one of which is site-diluted. All intralayer couplings are ferromagnetic. The different kinds of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de72c071ea6332e2cbc7f6604dcedbda
Autor:
Ian Jordy Lopez Diaz, N. S. Branco
We study the thermodynamic and magnetic properties of an Ising bilayer ferrimagnet. The system is composed of two interacting non-equivalent planes in which the intralayer couplings are ferromagnetic while the interlayer interactions are antiferromag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f54a2a6ef27b1cffd022fb952e40cf7
Publikováno v:
Solid State Communications. 147:494-497
Two one-dimensional spin-1 antiferromagnetic Ising models with a single-ion anisotropy under external magnetic field at low temperatures are exactly investigated by the transfer-matrix technique. The magnetization per spin ($m$) is obtained for the t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d3d9fe22b7524deda68fa95480b18c7
https://doi.org/10.1016/j.ssc.2008.06.037
https://doi.org/10.1016/j.ssc.2008.06.037
We have studied the presence of plateaus on the low-temperature magnetization of an antiferromagnetic spin-1 chain, as an external uniform magnetic field is varied. A crystal-field interaction is present in the model and the exchange constants follow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c4f6ee4f7f1b0c9b5c5f66e5a9d50c4
http://arxiv.org/abs/1505.04209
http://arxiv.org/abs/1505.04209
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 328:167-173
We study the phase diagram of the two-dimensional quantum spin- 1 2 anisotropic Heisenberg model. We adapt a renormalization-group approach to treat this quantum model, and an analysis on low temperatures is presented and compared with the exact resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64db2b90c70624ec07b5063adacae14c
https://doi.org/10.1016/s0378-4371(03)00544-2
https://doi.org/10.1016/s0378-4371(03)00544-2
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 305:585-596
The phase diagram of the quantum spin- 1 2 anisotropic Heisenberg antiferromagnet is studied, within a mean-field renormalization-group approach in larger clusters. The model consists of an anisotropic cubic lattice, with in-plane J and inter-plane J
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ddf1426055da28a1f5e7c01162409d3
https://doi.org/10.1016/s0378-4371(01)00474-5
https://doi.org/10.1016/s0378-4371(01)00474-5
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 304:429-442
We employ a real-space renormalization-group (RSRG) approach to study a mixed-spin (spin- 1 2 and spin-1) antiferromagnetic Ising model on the square lattice. The model incorporates next-nearest-neighbor interactions which are relevant to describe fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::448c08349f24d7f23a1dcffc75d5e993
https://doi.org/10.1016/s0378-4371(01)00560-x
https://doi.org/10.1016/s0378-4371(01)00560-x