Theoretical estimation of surface magnetic anisotropy on L10-FePt thin films: Case of perfect and defect Surfaces

Autor: A. Ziane, Leila Messad, Y. Labaye, Katia Hammar

Publikováno v: Surface Science. 717:121999

We carried out first-principle calculations of magnetocrystalline anisotropy of L1 0 -FePt thin films terminated by either perfect Fe (Pt) layers or defect surfaces, including vacancies or substituted surface atoms. Inspired by the experimental strat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::87b409a9e5e28bde3a5a3148e3f8c8ba
https://doi.org/10.1016/j.susc.2021.121999

Surface Effects in Ultra Thin Iron Oxide Hollow Nanoparticles: Exploring Magnetic Disorder at the Nanoscale

Autor: Gurvinder Singh, P. Anil Kumar, F. Sayed, R. Sayed Hassan, Elisabetta Agostinelli, Nader Yaacoub, Roland Mathieu, Davide Peddis, George C. Hadjipanayis, Y. Labaye, Jean-Marc Greneche

Publikováno v: Journal of physical chemistry. C 122 (2018): 7516–7524. doi:10.1021/acs.jpcc.8b00300
info:cnr-pdr/source/autori:F. Sayed (a,b); N. Yaacoub (a); Y. Labaye (a); R. Sayed Hassan (a,b); G. Singh (c); P. Anil Kumar (d); J. M. Greneche (a); R. Mathieu (e); G. C. Hadjipanayis (f); E. Agostinelli (g); and D. Peddis (g)/titolo:Surface Effects in Ultra Thin Iron Oxide Hollow Nanoparticles: Exploring Magnetic Disorder at the Nanoscale/doi:10.1021%2Facs.jpcc.8b00300/rivista:Journal of physical chemistry. C/anno:2018/pagina_da:7516/pagina_a:7524/intervallo_pagine:7516–7524/volume:122
Journal of Physical Chemistry C
Journal of Physical Chemistry C, American Chemical Society, 2018, 122 (13), pp.7516-7524. ⟨10.1021/acs.jpcc.8b00300⟩

A detailed study of the structural and magnetic properties of polycrystalline hollow ?-Fe2O3 nanoparticles of ~9.4 nm size was performed. High-resolution transmission electron microscopy images confirmed the crystalline structure and the presence of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33c0bc403282a1a8d5859115503332dc

Modeling of hysteresis loops by Monte Carlo simulation

Autor: Jean-Marc Greneche, Z. Nehme, R. Sayed Hassan, Y. Labaye, Nader Yaacoub

Publikováno v: AIP Advances
AIP Advances, American Institute of Physics-AIP Publishing LLC, 2015, 5 (12), pp.127124. ⟨10.1063/1.4938549⟩
AIP Advances, Vol 5, Iss 12, Pp 127124-127124-11 (2015)

Recent advances in MC simulations of magnetic properties are rather devoted to non-interacting systems or ultrafast phenomena, while the modeling of quasi-static hysteresis loops of an assembly of spins with strong internal exchange interactions rema

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47d5df73d2e146d051f3b0ba1c7f49e2
https://hal.archives-ouvertes.fr/hal-02127480

Monte Carlo simulation of magnetic properties in nanocrystalline-like systems

Autor: O. Crisan, L. Berger, Jean-Marc Greneche, Y. Labaye

Publikováno v: Journal of Physics: Condensed Matter. 15:6331-6344

Those nanocrystalline materials which consist of ferromagnetic nanograins embedded in a ferromagnetic matrix were modelled as a cubic lattice composed of a central sphere with strongly coupled spins surrounded by weakly coupled spins. The magnetic be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d902f9f095ccae2a38d7c8cf89982cf
https://doi.org/10.1088/0953-8984/15/37/003

Magnetic Properties of Nanocrystalline Materials: A Monte Carlo Simulation

Autor: L. Berger, Jean-Marc Greneche, O. Crisan, Y. Labaye

Publikováno v: physica status solidi (a). 189:845-848

The magnetic properties of interfacial regions between ferromagnetic nanograins and the residual matrix in nanocrystalline materials, are modelled using Monte Carlo simulation. The exchange coupling between matrix and nanograin influences differently

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::992740ab9e292635232fd1902cee7969
https://doi.org/10.1002/1521-396x(200202)189:3<845::aid-pssa845>3.0.co