Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/23929
Tipo: Artigo
Título: Experimental and theoretical evidences for the ice regime in planar artificial spin ices
Autor(es): Loreto, R. P.
Gonçalves, R. S.
Pereira, A. R.
Araujo, C. I. L. de
Nascimento, F. S.
Borme, J.
Cezar, J. C.
Nisoli, C.
Abstract: In this work, we explore a kind of geometrical effect in the thermodynamics of artificial spin ices (ASI). In general, such artificial materials are athermal. Here, We demonstrate that geometrically driven dynamics in ASI can open up the panorama of exploring distinct ground states and thermally magnetic monopole excitations. It is shown that a particular ASI lattice will provide a richer thermodynamics with nanomagnet spins experiencing less restriction to flip precisely in a kind of rhombic lattice. This can be observed by analysis of only three types of rectangular artificial spin ices (RASI). Denoting the horizontal and vertical lattice spacings by and , respectively, then, a RASI material can be described by its aspect ratio . The rhombic lattice emerges when . So, by comparing the impact of thermal effects on the spin flips in these three appropriate different RASI arrays, it is possible to find a system very close to the ice regime.
Palavras-chave: Nanomagnetism
Spin ices
Magnetic monopoles
Editor: Journal of Physics: Condensed Matter
Citação: nanomagnetism, spin ices, magnetic monopoles
Tipo de Acesso: IOP Publishing Ltd
URI: https://doi.org/10.1088/1361-648X/aaeeef
http://www.locus.ufv.br/handle/123456789/23929
Data do documento: 2019
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