Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br

Abstract We perform magnetic susceptibility and magnetic torque measurements on the organic κ-(BEDT-TTF)2Hg(SCN)2Br, which is recently suggested to host an exotic quantum dipole-liquid in its low-temperature insulating phase. Below the metal-insulator (MI) transition temperature, the magnetic suscep...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Minoru Yamashita, Shiori Sugiura, Akira Ueda, Shun Dekura, Taichi Terashima, Shinya Uji, Yoshiya Sunairi, Hatsumi Mori, Elena I. Zhilyaeva, Svetlana A. Torunova, Rimma N. Lyubovskaya, Natalia Drichko, Chisa Hotta
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/6d43f161552248af8b1f4c9ae12772df
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6d43f161552248af8b1f4c9ae12772df
record_format	dspace
spelling	oai:doaj.org-article:6d43f161552248af8b1f4c9ae12772df2021-12-02T18:07:54ZFerromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br10.1038/s41535-021-00387-62397-4648https://doaj.org/article/6d43f161552248af8b1f4c9ae12772df2021-10-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00387-6https://doaj.org/toc/2397-4648Abstract We perform magnetic susceptibility and magnetic torque measurements on the organic κ-(BEDT-TTF)2Hg(SCN)2Br, which is recently suggested to host an exotic quantum dipole-liquid in its low-temperature insulating phase. Below the metal-insulator (MI) transition temperature, the magnetic susceptibility follows a Curie–Weiss law with a positive Curie–Weiss temperature, and a particular $$M\propto \sqrt{H}$$ M ∝ H curve is observed. The emergent ferromagnetically interacting spins amount to about 1/6 of the full spin moment of localized charges. Taking account of the possible inhomogeneous quasi-charge-order that forms a dipole-liquid, we construct a model of antiferromagnetically interacting spin chains in two adjacent charge-ordered domains, which are coupled via fluctuating charges on a Mott-dimer at the boundary. We find that the charge fluctuations can draw a weak ferromagnetic moment out of the spin singlet domains.Minoru YamashitaShiori SugiuraAkira UedaShun DekuraTaichi TerashimaShinya UjiYoshiya SunairiHatsumi MoriElena I. ZhilyaevaSvetlana A. TorunovaRimma N. LyubovskayaNatalia DrichkoChisa HottaNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-8 (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 Minoru Yamashita Shiori Sugiura Akira Ueda Shun Dekura Taichi Terashima Shinya Uji Yoshiya Sunairi Hatsumi Mori Elena I. Zhilyaeva Svetlana A. Torunova Rimma N. Lyubovskaya Natalia Drichko Chisa Hotta Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br
description	Abstract We perform magnetic susceptibility and magnetic torque measurements on the organic κ-(BEDT-TTF)2Hg(SCN)2Br, which is recently suggested to host an exotic quantum dipole-liquid in its low-temperature insulating phase. Below the metal-insulator (MI) transition temperature, the magnetic susceptibility follows a Curie–Weiss law with a positive Curie–Weiss temperature, and a particular $$M\propto \sqrt{H}$$ M ∝ H curve is observed. The emergent ferromagnetically interacting spins amount to about 1/6 of the full spin moment of localized charges. Taking account of the possible inhomogeneous quasi-charge-order that forms a dipole-liquid, we construct a model of antiferromagnetically interacting spin chains in two adjacent charge-ordered domains, which are coupled via fluctuating charges on a Mott-dimer at the boundary. We find that the charge fluctuations can draw a weak ferromagnetic moment out of the spin singlet domains.
format	article
author	Minoru Yamashita Shiori Sugiura Akira Ueda Shun Dekura Taichi Terashima Shinya Uji Yoshiya Sunairi Hatsumi Mori Elena I. Zhilyaeva Svetlana A. Torunova Rimma N. Lyubovskaya Natalia Drichko Chisa Hotta
author_facet	Minoru Yamashita Shiori Sugiura Akira Ueda Shun Dekura Taichi Terashima Shinya Uji Yoshiya Sunairi Hatsumi Mori Elena I. Zhilyaeva Svetlana A. Torunova Rimma N. Lyubovskaya Natalia Drichko Chisa Hotta
author_sort	Minoru Yamashita
title	Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br
title_short	Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br
title_full	Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br
title_fullStr	Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br
title_full_unstemmed	Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br
title_sort	ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(bedt-ttf)2hg(scn)2br
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6d43f161552248af8b1f4c9ae12772df
work_keys_str_mv	AT minoruyamashita ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT shiorisugiura ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT akiraueda ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT shundekura ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT taichiterashima ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT shinyauji ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT yoshiyasunairi ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT hatsumimori ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT elenaizhilyaeva ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT svetlanaatorunova ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT rimmanlyubovskaya ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT nataliadrichko ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br AT chisahotta ferromagnetismoutofchargefluctuationofstronglycorrelatedelectronsinkbedtttf2hgscn2br
_version_	1718378634768547840

Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br

Ejemplares similares