Zobrazeno 1 - 10
of 34
pro vyhledávání: '"J.D. Alzate-Cardona"'
Publikováno v:
Journal of Magnetism and Magnetic Materials. 482:120-124
We evaluate the influence of the shape on hysteretic properties in ferromagnetic/antiferromagnetic core/shell nanoparticles using Monte Carlo simulations. Exchange bias and coercive fields were estimated in nanoparticles with shapes ranging from octa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11498e50ce5d275e00afd37d27813564
https://doi.org/10.1016/j.jmmm.2019.03.037
https://doi.org/10.1016/j.jmmm.2019.03.037
Autor:
J.D. Alzate-Cardona, Lorenzo Fallarino, Andreas Berger, Elisabeth Restrepo-Parra, J. S. Salcedo-Gallo
Publikováno v:
Physical Review B. 103
In this work, we investigate the thermodynamic behavior of exchange graded ferromagnetic films using Monte Carlo simulations. The systems are modeled by using a classical Heisenberg Hamiltonian, considering only nearest neighbor exchange interactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2599f33358e463bdb22fd18360307a0b
https://doi.org/10.1103/physrevb.103.094440
https://doi.org/10.1103/physrevb.103.094440
Autor:
H. Barco-Ríos, J. S. Salcedo-Gallo, Elisabeth Restrepo-Parra, D. F. Rodríguez-Patiño, J.D. Alzate-Cardona
Publikováno v:
Physics Letters A. 382:2069-2074
The magnetic properties and magnetocaloric effect in NdMn O 3 have been investigated, as well as the effect of magnetic anisotropy in the magnetocaloric properties of the perovskite-type compound. A classical Heisenberg Hamiltonian with nearest and n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0997768009f980b2e96b110931f83b4c
https://doi.org/10.1016/j.physleta.2018.05.019
https://doi.org/10.1016/j.physleta.2018.05.019
Publikováno v:
Materials Chemistry and Physics. 213:362-367
In the present work, we have studied the magnetic behavior of a ternary alloy nanoparticle of the form A B p C 1 − p by Monte Carlo simulations. The nanoparticle was modeled by three types of magnetic sites, A-sites with spin- 3 / 2 , B-sites with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7c56d9a0e62f78e99e628f470184573
https://doi.org/10.1016/j.matchemphys.2018.04.046
https://doi.org/10.1016/j.matchemphys.2018.04.046
Publikováno v:
Physics Letters A. 382:792-797
This work presents a study of dynamic phase transitions in samples of perovskite type manganites of L a 2 3 C a 1 3 Mn O 3 , when they were submitted to the influence of an external magnetic field that includes both a time dependent and a time indepe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1daca8f7cdb3da32e31f83d05a74dc9
https://doi.org/10.1016/j.physleta.2018.01.022
https://doi.org/10.1016/j.physleta.2018.01.022
Publikováno v:
Journal of Magnetism and Magnetic Materials. 442:231-235
We have studied the effects of surface shape anisotropy in the magnetization behavior of a torus nanoring by means of Monte Carlo simulations. Stable states (vortex and reverse vortex states) and metastable states (onion and asymmetric onion states)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86e1be81e11c4abb76210714e12fc450
https://doi.org/10.1016/j.jmmm.2017.06.130
https://doi.org/10.1016/j.jmmm.2017.06.130
Publikováno v:
Journal of Magnetism and Magnetic Materials. 429:34-39
We have studied the magnetic properties of the mixed spin σ = ± 3 2 , ± 1 2 and spin S = ± 5 2 , ± 3 2 , ± 1 2 Ising ferrimagnetic system in a graphene layer by means of Monte Carlo simulations. The effects of next-nearest neighbors exchange in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d853ba550b02fe07440a76784c22cf21
https://doi.org/10.1016/j.jmmm.2017.01.004
https://doi.org/10.1016/j.jmmm.2017.01.004
Autor:
J.D. Alzate-Cardona, Roy W. Chantrell, O. D. Arbeláez-Echeverri, Sergiu Ruta, Elisabeth Restrepo-Parra
Publikováno v:
Journal of Magnetism and Magnetic Materials. 424:451-458
Thermal and hysteretic magnetic properties of La2/3Ca1/3MnO3 nanoparticles were studied using Monte Carlo simulations, with emphasis on the influence of anisotropy. In this work, several nanoparticle sizes ranging from 2.32 to 11.58 nm were analyzed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::beef98bc3ce3fa72246633a54b35a940
https://doi.org/10.1016/j.jmmm.2016.10.108
https://doi.org/10.1016/j.jmmm.2016.10.108
Autor:
D. F. Rodríguez-Patiño, J.D. Alzate-Cardona, J. S. Salcedo-Gallo, Carlos Daniel Acosta-Medina, Elisabeth Restrepo-Parra
Publikováno v:
Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-7 (2019)
Scientific Reports, Vol 9, Iss 1, Pp 1-7 (2019)
The magnetocaloric effect and the universal character for the magnetic entropy change regarding the cubic crystal structures (SC, BCC, FCC) were investigated, in a qualitative way, using Monte Carlo simulations. A classical Heisenberg Hamiltonian wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fec41b0f84d70956831851518bc7713
http://europepmc.org/articles/PMC6435675
http://europepmc.org/articles/PMC6435675
Publikováno v:
Journal of Nuclear Materials. 475:81-86
Fission gas release in nuclear fuels can be modeled in the framework of percolation theory, where each grain boundary is classified as open or closed to the release of the fission gas. In the present work, two-dimensional grain boundary networks were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3a370a5165e575c5457a05e741f0dcc
https://doi.org/10.1016/j.jnucmat.2016.03.031
https://doi.org/10.1016/j.jnucmat.2016.03.031