Convoluted Magnetoresistance and Magnetic Reversal Processes in Ni-Fe Segmented Cylindrical Nanodots with Tunable Size and Composition for Technological Applications

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dc.contributor.authorVelasquez, Ever A.
dc.contributor.authorMazo-Zuluaga, Johann
dc.contributor.authorMejia-Lopez, Jose
dc.date.accessioned2025-01-20T20:10:26Z
dc.date.available2025-01-20T20:10:26Z
dc.date.issued2023
dc.description.abstractDue to their unique properties, bi-segmented systems are currently used in several technological applications such as sensing devices, high density magnetic data storage systems, spintronics and microelectromechanical components, among others. In this study, the magnetoresistance and magnetic properties of Ni-Fe bi-segmented cylindrical nanodots in a broad range of diameters and heights are discussed. The power of the First Principles approach, as considered in the density functional theory formulation, is used to study the structural and magnetic relaxation effects, and atomistic simulations, through the Fast Monte Carlo methodology, are employed to explore the magnetoresistance and magnetic behaviors of these systems. By means of the magnetic hysteresis and magnetoresistance signals, convoluted magnetization reversal schemes are discussed. These effects take place depending on the size of the Ni and Fe components as a result of the interplay among exchange interactions and size and shape effects induced by dipolar interactions. Since size has become an experimental controllable parameter, due to the enriched phenomena, the effects discussed in these bi-component systems are useful for the design and production of devices for technological applications with relevance beyond the observed in the more restricted single component systems.
dc.fuente.origenWOS
dc.identifier.doi10.1002/adts.202300051
dc.identifier.eissn2513-0390
dc.identifier.urihttps://doi.org/10.1002/adts.202300051
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92069
dc.identifier.wosidWOS:001002902400001
dc.issue.numero8
dc.language.isoen
dc.revistaAdvanced theory and simulations
dc.rightsacceso restringido
dc.subjectDFT
dc.subjectdipolar interactions
dc.subjectdipolar-induced size/shape effects
dc.subjectmagnetic reversal
dc.subjectmagnetoresistance
dc.subjectMonte Carlo
dc.subjectNi-Fe segmented nanocylinders
dc.titleConvoluted Magnetoresistance and Magnetic Reversal Processes in Ni-Fe Segmented Cylindrical Nanodots with Tunable Size and Composition for Technological Applications
dc.typeartículo
dc.volumen6
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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