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Magnetic Interactions and Energy Barrier Enhancement in Core/Shell Bimagnetic Nanoparticles
(American Chemical Society, 2015-07)
In this work, we studied the dynamic and static magnetic properties of ZnO-core/CoFe2O4-shell and CoO-core/CoFe2O4-shell nanoparticles. Both systems are formed by a core of ∼4 nm of diameter encapsulated in a shell of ∼2 ...
Two-dimensional Ising model with Einstein site phonons
(American Physical Society, 2019-04-23)
We consider a simple Ising magnetic model in two dimensions with Einstein site phonons and study it using Monte Carlo simulations that take into account both degrees of freedom simultaneously. In nonfrustrated systems, ...
Interparticle Interactions Effects on the Magnetic Order in Surface of Fe(3)O(4) Nanoparticles
(AMER SCIENTIFIC PUBLISHERS, 2008)
We report interparticle interactions effects on the magnetic structure of the surface region in Fe(3)O(4) nanoparticles. For that, we have studied a desirable system composed by Fe(3)O(4) nanoparticles with (d) = 9.3 nm ...
Spin reversal and magnetization jumps in ErMexMn1-xO3 perovskites (Me = Ni, Co)
(Elsevier B.V., 2007-05-01)
The erbium-based manganite ErMnO3 has been partially substituted at the manganese site by the transition-metal elements Ni and Co. The perovskite orthorhombic structure is found from x(Ni) = 0.2-0.5 in the nickel-based ...
Spin reversal and magnetization jumps in ErMexMn1-xO3 perovskites (Me = Ni, Co)
(Elsevier B.V., 2007-05-01)
The erbium-based manganite ErMnO3 has been partially substituted at the manganese site by the transition-metal elements Ni and Co. The perovskite orthorhombic structure is found from x(Ni) = 0.2-0.5 in the nickel-based ...
Intermolecular interaction energies and magnetic properties of spin-isolated multinuclear CuII complexes
(International Union of Crystallography, 2020)
Vortex lattice in two-dimensional chiral XY ferromagnets and the inverse Berezinskii-Kosterlitz-Thouless transition
(American Physical Society, 2020-09)
In this Letter we will show that, in the presence of a properly modulated Dzyaloshinskii-Moriya (DM) interaction, a U(1) vortex-antivortex lattice appears at low temperatures for a wide range of the DM interaction. Even ...
Magnetic coupling of stripe domains in FePt/Ni80Fe20 bilayers
(IOP Publishing, 2017-02-13)
Equiatomic FePt in the A1 soft magnetic phase and Ni80Fe20 (permalloy) thin films form a stripe-like magnetic domain structure above a critical thickness. This critical thickness is considerably different in the two alloys ...