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Anisotropia inducida por campo magnético en perovskitas de cobalto

Authors: Mira Pérez, Jorge; Rivas Rey, José; Señarís Rodríguez, María Antonia;

Anisotropia inducida por campo magnético en perovskitas de cobalto

Abstract

En este trabajo se examina la anisotropía magnética de la perovskita de cobalto Lao.7Sro.3Co03, material de alto interés tecnológico. Las medidas convencionales, hechas en la zona de alto campo, arrojan un valor de anisotropía magnética muy elevado, que contrasta con los bajos valores de campo coercitivo medidos en los ciclos de histéresis del material. De los datos de campo coercitivo se calcula la anisotropía magnética en la región de bajo campo, evidenciando una sorprendente reducción de esta magnitud, lo que demuestra su dependencia con el campo externo aplicado. El efecto es explicado en términos de una transición, inducida por campo magnético, del estado de espín de los iones de cobalto, desde una configuración de bajo espín a una de espín intermedio, lo que covierte al ión de cobalto en un ión Jahn-Teller

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average