Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride

Abstract Magnetism of pure electrons is fundamental for understanding diverse magnetic phenomena in condensed matters but has not been fully investigated in experiments due to the lack of a tractable model system. Such an exotic material necessitates an exclusive magnetic interaction of electrons be...

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Autores principales:	Seung Yong Lee, Joonho Bang, Hyun Yong Song, Byung Il Yoo, Yeongkwan Kim, Kimoon Lee, Dinesh Thapa, Seong-Gon Kim, Sung Wng Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
Acceso en línea:	https://doaj.org/article/f2a0a674a1924a33a54aa1983e0205c9
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spelling	oai:doaj.org-article:f2a0a674a1924a33a54aa1983e0205c92021-12-02T13:26:20ZMixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride10.1038/s41535-021-00319-42397-4648https://doaj.org/article/f2a0a674a1924a33a54aa1983e0205c92021-03-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00319-4https://doaj.org/toc/2397-4648Abstract Magnetism of pure electrons is fundamental for understanding diverse magnetic phenomena in condensed matters but has not been fully investigated in experiments due to the lack of a tractable model system. Such an exotic material necessitates an exclusive magnetic interaction of electrons being devoid of orbital and lattice degrees of freedom. Here, we report the two-dimensional mixed-cation [YGdC]2+∙2e− electride, showing ferrimagnetic nature from the direct exchange interaction of magnetic interstitial electrons in interlayer space. We identify that magnetic interstitial electrons are periodically localized in octahedral and tetrahedral cavities between 2D cationic Y2−x Gd x arrays. The mixed configuration of non-magnetic and magnetic cations in cavities induces divergent spin states and interactions of magnetic interstitial electrons, in which their direct exchange interaction overwhelms the interactions with magnetic cations, triggering the ferrimagnetic spin-alignment. This discovery facilitates further exploration of magnetic electrides and nurtures the study of two-dimensional magnetism of layered crystals and electron phases.Seung Yong LeeJoonho BangHyun Yong SongByung Il YooYeongkwan KimKimoon LeeDinesh ThapaSeong-Gon KimSung Wng KimNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 Seung Yong Lee Joonho Bang Hyun Yong Song Byung Il Yoo Yeongkwan Kim Kimoon Lee Dinesh Thapa Seong-Gon Kim Sung Wng Kim Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride
description	Abstract Magnetism of pure electrons is fundamental for understanding diverse magnetic phenomena in condensed matters but has not been fully investigated in experiments due to the lack of a tractable model system. Such an exotic material necessitates an exclusive magnetic interaction of electrons being devoid of orbital and lattice degrees of freedom. Here, we report the two-dimensional mixed-cation [YGdC]2+∙2e− electride, showing ferrimagnetic nature from the direct exchange interaction of magnetic interstitial electrons in interlayer space. We identify that magnetic interstitial electrons are periodically localized in octahedral and tetrahedral cavities between 2D cationic Y2−x Gd x arrays. The mixed configuration of non-magnetic and magnetic cations in cavities induces divergent spin states and interactions of magnetic interstitial electrons, in which their direct exchange interaction overwhelms the interactions with magnetic cations, triggering the ferrimagnetic spin-alignment. This discovery facilitates further exploration of magnetic electrides and nurtures the study of two-dimensional magnetism of layered crystals and electron phases.
format	article
author	Seung Yong Lee Joonho Bang Hyun Yong Song Byung Il Yoo Yeongkwan Kim Kimoon Lee Dinesh Thapa Seong-Gon Kim Sung Wng Kim
author_facet	Seung Yong Lee Joonho Bang Hyun Yong Song Byung Il Yoo Yeongkwan Kim Kimoon Lee Dinesh Thapa Seong-Gon Kim Sung Wng Kim
author_sort	Seung Yong Lee
title	Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride
title_short	Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride
title_full	Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride
title_fullStr	Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride
title_full_unstemmed	Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride
title_sort	mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f2a0a674a1924a33a54aa1983e0205c9
work_keys_str_mv	AT seungyonglee mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT joonhobang mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT hyunyongsong mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT byungilyoo mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT yeongkwankim mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT kimoonlee mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT dineshthapa mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT seonggonkim mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride AT sungwngkim mixedcationdrivenmagneticinteractionofinterstitialelectronsforferrimagnetictwodimensionalelectride
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Mixed-cation driven magnetic interaction of interstitial electrons for ferrimagnetic two-dimensional electride

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