Strain Engineering of the Berry Curvature Dipole and Valley Magnetization in Monolayer MoS2

The Berry curvature dipole is a physical quantity that is expected to allow various quantum geometrical phenomena in a range of solid-state systems. Monolayer transition metal dichalcogenides provide an exceptional platform to modulate and investigate the Berry curvature dipole through strain. Here,...

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Veröffentlicht in:	Physical review letters 2019-07, Vol.123 (3), p.1
Hauptverfasser:	Son, Joolee, Kim, Kyung-Han, Ahn, Y H, Lee, Hyun-Woo, Lee, Jieun
Format:	Artikel
Sprache:	eng
Schlagworte:	Curvature Dipoles Electric fields Magnetization Molybdenum disulfide Monolayers System effectiveness Transition metal compounds
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container_title	Physical review letters
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creator	Son, Joolee Kim, Kyung-Han Ahn, Y H Lee, Hyun-Woo Lee, Jieun
description	The Berry curvature dipole is a physical quantity that is expected to allow various quantum geometrical phenomena in a range of solid-state systems. Monolayer transition metal dichalcogenides provide an exceptional platform to modulate and investigate the Berry curvature dipole through strain. Here, we theoretically demonstrate and experimentally verify for monolayer MoS2 the generation of valley orbital magnetization as a response to an in-plane electric field due to the Berry curvature dipole. The measured valley orbital magnetization shows excellent agreement with the calculated Berry curvature dipole, which can be controlled by the magnitude and direction of strain. Our results show that the Berry curvature dipole acts as an effective magnetic field in current-carrying systems, providing a novel route to generate magnetization.
doi_str_mv	10.1103/PhysRevLett.123.036806
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Monolayer transition metal dichalcogenides provide an exceptional platform to modulate and investigate the Berry curvature dipole through strain. Here, we theoretically demonstrate and experimentally verify for monolayer MoS2 the generation of valley orbital magnetization as a response to an in-plane electric field due to the Berry curvature dipole. The measured valley orbital magnetization shows excellent agreement with the calculated Berry curvature dipole, which can be controlled by the magnitude and direction of strain. Our results show that the Berry curvature dipole acts as an effective magnetic field in current-carrying systems, providing a novel route to generate magnetization.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.123.036806</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Curvature ; Dipoles ; Electric fields ; Magnetization ; Molybdenum disulfide ; Monolayers ; System effectiveness ; Transition metal compounds</subject><ispartof>Physical review letters, 2019-07, Vol.123 (3), p.1</ispartof><rights>Copyright American Physical Society Jul 19, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c236t-48a7436e17ce74299eb7369c064628eb1f9358463c25b6c59da47b428cbe4f3e3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Son, Joolee</creatorcontrib><creatorcontrib>Kim, Kyung-Han</creatorcontrib><creatorcontrib>Ahn, Y H</creatorcontrib><creatorcontrib>Lee, Hyun-Woo</creatorcontrib><creatorcontrib>Lee, Jieun</creatorcontrib><title>Strain Engineering of the Berry Curvature Dipole and Valley Magnetization in Monolayer MoS2</title><title>Physical review letters</title><description>The Berry curvature dipole is a physical quantity that is expected to allow various quantum geometrical phenomena in a range of solid-state systems. 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Monolayer transition metal dichalcogenides provide an exceptional platform to modulate and investigate the Berry curvature dipole through strain. Here, we theoretically demonstrate and experimentally verify for monolayer MoS2 the generation of valley orbital magnetization as a response to an in-plane electric field due to the Berry curvature dipole. The measured valley orbital magnetization shows excellent agreement with the calculated Berry curvature dipole, which can be controlled by the magnitude and direction of strain. Our results show that the Berry curvature dipole acts as an effective magnetic field in current-carrying systems, providing a novel route to generate magnetization.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevLett.123.036806</doi></addata></record>
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subjects	Curvature Dipoles Electric fields Magnetization Molybdenum disulfide Monolayers System effectiveness Transition metal compounds
title	Strain Engineering of the Berry Curvature Dipole and Valley Magnetization in Monolayer MoS2
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