Direct observation of topological magnon polarons in a multiferroic material

Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their...
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Autor*in:	Song Bao [verfasserIn] Zhao-Long Gu [verfasserIn] Yanyan Shangguan [verfasserIn] Zhentao Huang [verfasserIn] Junbo Liao [verfasserIn] Xiaoxue Zhao [verfasserIn] Bo Zhang [verfasserIn] Zhao-Yang Dong [verfasserIn] Wei Wang [verfasserIn] Ryoichi Kajimoto [verfasserIn] Mitsutaka Nakamura [verfasserIn] Tom Fennell [verfasserIn] Shun-Li Yu [verfasserIn] Jian-Xin Li [verfasserIn] Jinsheng Wen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Übergeordnetes Werk:	In: Nature Communications - Nature Portfolio, 2016, 14(2023), 1, Seite 9
Übergeordnetes Werk:	volume:14 ; year:2023 ; number:1 ; pages:9

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1038/s41467-023-41791-9

Katalog-ID:	DOAJ091837987

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allfields	10.1038/s41467-023-41791-9 doi (DE-627)DOAJ091837987 (DE-599)DOAJ5af7db7a8f58480b96c6e6bbfb85a49e DE-627 ger DE-627 rakwb eng Song Bao verfasserin aut Direct observation of topological magnon polarons in a multiferroic material 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations. Science Q Zhao-Long Gu verfasserin aut Yanyan Shangguan verfasserin aut Zhentao Huang verfasserin aut Junbo Liao verfasserin aut Xiaoxue Zhao verfasserin aut Bo Zhang verfasserin aut Zhao-Yang Dong verfasserin aut Wei Wang verfasserin aut Ryoichi Kajimoto verfasserin aut Mitsutaka Nakamura verfasserin aut Tom Fennell verfasserin aut Shun-Li Yu verfasserin aut Jian-Xin Li verfasserin aut Jinsheng Wen verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 9 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:9 https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/article/5af7db7a8f58480b96c6e6bbfb85a49e kostenfrei https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 9
spelling	10.1038/s41467-023-41791-9 doi (DE-627)DOAJ091837987 (DE-599)DOAJ5af7db7a8f58480b96c6e6bbfb85a49e DE-627 ger DE-627 rakwb eng Song Bao verfasserin aut Direct observation of topological magnon polarons in a multiferroic material 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations. Science Q Zhao-Long Gu verfasserin aut Yanyan Shangguan verfasserin aut Zhentao Huang verfasserin aut Junbo Liao verfasserin aut Xiaoxue Zhao verfasserin aut Bo Zhang verfasserin aut Zhao-Yang Dong verfasserin aut Wei Wang verfasserin aut Ryoichi Kajimoto verfasserin aut Mitsutaka Nakamura verfasserin aut Tom Fennell verfasserin aut Shun-Li Yu verfasserin aut Jian-Xin Li verfasserin aut Jinsheng Wen verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 9 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:9 https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/article/5af7db7a8f58480b96c6e6bbfb85a49e kostenfrei https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 9
allfields_unstemmed	10.1038/s41467-023-41791-9 doi (DE-627)DOAJ091837987 (DE-599)DOAJ5af7db7a8f58480b96c6e6bbfb85a49e DE-627 ger DE-627 rakwb eng Song Bao verfasserin aut Direct observation of topological magnon polarons in a multiferroic material 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations. Science Q Zhao-Long Gu verfasserin aut Yanyan Shangguan verfasserin aut Zhentao Huang verfasserin aut Junbo Liao verfasserin aut Xiaoxue Zhao verfasserin aut Bo Zhang verfasserin aut Zhao-Yang Dong verfasserin aut Wei Wang verfasserin aut Ryoichi Kajimoto verfasserin aut Mitsutaka Nakamura verfasserin aut Tom Fennell verfasserin aut Shun-Li Yu verfasserin aut Jian-Xin Li verfasserin aut Jinsheng Wen verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 9 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:9 https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/article/5af7db7a8f58480b96c6e6bbfb85a49e kostenfrei https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 9
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allfieldsSound	10.1038/s41467-023-41791-9 doi (DE-627)DOAJ091837987 (DE-599)DOAJ5af7db7a8f58480b96c6e6bbfb85a49e DE-627 ger DE-627 rakwb eng Song Bao verfasserin aut Direct observation of topological magnon polarons in a multiferroic material 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations. Science Q Zhao-Long Gu verfasserin aut Yanyan Shangguan verfasserin aut Zhentao Huang verfasserin aut Junbo Liao verfasserin aut Xiaoxue Zhao verfasserin aut Bo Zhang verfasserin aut Zhao-Yang Dong verfasserin aut Wei Wang verfasserin aut Ryoichi Kajimoto verfasserin aut Mitsutaka Nakamura verfasserin aut Tom Fennell verfasserin aut Shun-Li Yu verfasserin aut Jian-Xin Li verfasserin aut Jinsheng Wen verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 9 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:9 https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/article/5af7db7a8f58480b96c6e6bbfb85a49e kostenfrei https://doi.org/10.1038/s41467-023-41791-9 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 9
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authorswithroles_txt_mv	Song Bao @@aut@@ Zhao-Long Gu @@aut@@ Yanyan Shangguan @@aut@@ Zhentao Huang @@aut@@ Junbo Liao @@aut@@ Xiaoxue Zhao @@aut@@ Bo Zhang @@aut@@ Zhao-Yang Dong @@aut@@ Wei Wang @@aut@@ Ryoichi Kajimoto @@aut@@ Mitsutaka Nakamura @@aut@@ Tom Fennell @@aut@@ Shun-Li Yu @@aut@@ Jian-Xin Li @@aut@@ Jinsheng Wen @@aut@@
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author	Song Bao
spellingShingle	Song Bao misc Science misc Q Direct observation of topological magnon polarons in a multiferroic material
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topic_title	Direct observation of topological magnon polarons in a multiferroic material
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title	Direct observation of topological magnon polarons in a multiferroic material
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author_browse	Song Bao Zhao-Long Gu Yanyan Shangguan Zhentao Huang Junbo Liao Xiaoxue Zhao Bo Zhang Zhao-Yang Dong Wei Wang Ryoichi Kajimoto Mitsutaka Nakamura Tom Fennell Shun-Li Yu Jian-Xin Li Jinsheng Wen
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title_sort	direct observation of topological magnon polarons in a multiferroic material
title_auth	Direct observation of topological magnon polarons in a multiferroic material
abstract	Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations.
abstractGer	Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations.
abstract_unstemmed	Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations.
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title_short	Direct observation of topological magnon polarons in a multiferroic material
url	https://doi.org/10.1038/s41467-023-41791-9 https://doaj.org/article/5af7db7a8f58480b96c6e6bbfb85a49e https://doaj.org/toc/2041-1723
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author2Str	Zhao-Long Gu Yanyan Shangguan Zhentao Huang Junbo Liao Xiaoxue Zhao Bo Zhang Zhao-Yang Dong Wei Wang Ryoichi Kajimoto Mitsutaka Nakamura Tom Fennell Shun-Li Yu Jian-Xin Li Jinsheng Wen
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Direct observation of topological magnon polarons in a multiferroic material

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