Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams

Abstract Magnetic oscillation is a generic property of electronic conductors under magnetic fields and widely appreciated as a useful probe of their electronic band structure, i.e. the Fermi surface geometry. However, the usage of the strong static magnetic field makes the measurement insensitive to...

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Autores principales:	Hiroyuki Fujita, Masahiro Sato
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7356f403cbca4557958718c07130f80a
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spelling	oai:doaj.org-article:7356f403cbca4557958718c07130f80a2021-12-02T15:08:54ZNonequilibrium Magnetic Oscillation with Cylindrical Vector Beams10.1038/s41598-018-33651-02045-2322https://doaj.org/article/7356f403cbca4557958718c07130f80a2018-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-33651-0https://doaj.org/toc/2045-2322Abstract Magnetic oscillation is a generic property of electronic conductors under magnetic fields and widely appreciated as a useful probe of their electronic band structure, i.e. the Fermi surface geometry. However, the usage of the strong static magnetic field makes the measurement insensitive to the magnetic order of the target material. That is, the magnetic order is anyhow turned into a forced ferrromagnetic one. Here we theoretically propose an experimental method of measuring the magnetic oscillation in a magnetic-order-resolved way by using the azimuthal cylindrical vector (CV) beam, an example of topological lightwaves. The azimuthal CV beam is unique in that, when focused tightly, it develops a pure longitudinal magnetic field. We argue that this characteristic focusing property and the discrepancy in the relaxation timescale between conduction electrons and localized magnetic moments allow us to develop the nonequilibrium analogue of the magnetic oscillation measurement. Our optical method would be also applicable to metals under the ultra-high pressure of diamond anvil cells.Hiroyuki FujitaMasahiro SatoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hiroyuki Fujita Masahiro Sato Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams
description	Abstract Magnetic oscillation is a generic property of electronic conductors under magnetic fields and widely appreciated as a useful probe of their electronic band structure, i.e. the Fermi surface geometry. However, the usage of the strong static magnetic field makes the measurement insensitive to the magnetic order of the target material. That is, the magnetic order is anyhow turned into a forced ferrromagnetic one. Here we theoretically propose an experimental method of measuring the magnetic oscillation in a magnetic-order-resolved way by using the azimuthal cylindrical vector (CV) beam, an example of topological lightwaves. The azimuthal CV beam is unique in that, when focused tightly, it develops a pure longitudinal magnetic field. We argue that this characteristic focusing property and the discrepancy in the relaxation timescale between conduction electrons and localized magnetic moments allow us to develop the nonequilibrium analogue of the magnetic oscillation measurement. Our optical method would be also applicable to metals under the ultra-high pressure of diamond anvil cells.
format	article
author	Hiroyuki Fujita Masahiro Sato
author_facet	Hiroyuki Fujita Masahiro Sato
author_sort	Hiroyuki Fujita
title	Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams
title_short	Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams
title_full	Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams
title_fullStr	Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams
title_full_unstemmed	Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams
title_sort	nonequilibrium magnetic oscillation with cylindrical vector beams
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/7356f403cbca4557958718c07130f80a
work_keys_str_mv	AT hiroyukifujita nonequilibriummagneticoscillationwithcylindricalvectorbeams AT masahirosato nonequilibriummagneticoscillationwithcylindricalvectorbeams
_version_	1718388005643747328

Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams

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