Observation of Magnetic Proximity Effect Using Resonant Optical Spectroscopy of an Electrically Tunable MoSe2/CrBr3 Heterostructure
van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant optical reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable MoSe2/CrBr3...
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| Veröffentlicht in: | Physical review letters 2020-05, Vol.124 (19) |
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| container_title | Physical review letters |
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| creator | Ciorciaro, Livio Kroner, Martin Watanabe, Kenji Taniguchi, Takashi Imamoglu, Atac |
| description | van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant optical reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable MoSe2/CrBr3 heterostructure. The high quality of the interface leads to a giant zero-field splitting of the K and K′ valley excitons in MoSe2, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant optical spectroscopy to fully characterize the CrBr3 magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization. |
| doi_str_mv | 10.1103/PhysRevLett.124.197401 |
| format | Article |
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The magnetic proximity effect allows us to use resonant optical spectroscopy to fully characterize the CrBr3 magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.</description><subject>Chromium bromides</subject><subject>Coercivity</subject><subject>Electric fields</subject><subject>Excitons</subject><subject>Heterostructures</subject><subject>Magnetic anisotropy</subject><subject>Magnetic permeability</subject><subject>Magnetism</subject><subject>Magnetization</subject><subject>Molybdenum compounds</subject><subject>Optical reflection</subject><subject>Proximity</subject><subject>Proximity effect (electricity)</subject><subject>Spectroscopy</subject><subject>Spectrum analysis</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNotj1tLAzEQhYMoWKt_QQI-bzu5dC-PWqoVWlp6eS7Z7aRuWZOaZIv77B83RWFgYM6cc_gIeWQwYAzEcPnR-RWeZxjCgHE5YEUmgV2RHoOsSDLG5DXpAQiWFADZLbnz_ggAjKd5j_wsSo_urEJtDbWaztXBYKgrunT2u_6sQ0cnWmMV6NbX5kBX6K1RJtDFKX6phq5PUXTWV_bUXQKUoZPmcrqoTUc3rVFlg3Ru18iHY_fiBJ1iwGgJrq1C6_Ce3GjVeHz4332yfZ1sxtNktnh7Hz_PkoqLNCQy1bLQWVpGpAiy5xI5xAEYaQQuSpWJiIVMZakEmTKZV1ryFPej6MlR9MnTX-7J2a8WfdgdbetMrNxxCQVno5zn4hc-6mX3</recordid><startdate>20200515</startdate><enddate>20200515</enddate><creator>Ciorciaro, Livio</creator><creator>Kroner, Martin</creator><creator>Watanabe, Kenji</creator><creator>Taniguchi, Takashi</creator><creator>Imamoglu, Atac</creator><general>American Physical Society</general><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20200515</creationdate><title>Observation of Magnetic Proximity Effect Using Resonant Optical Spectroscopy of an Electrically Tunable MoSe2/CrBr3 Heterostructure</title><author>Ciorciaro, Livio ; Kroner, Martin ; Watanabe, Kenji ; Taniguchi, Takashi ; Imamoglu, Atac</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c236t-46f49f76b711007d24e20e20005fe023ba73001e1a764046148cf426ed56b78e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Chromium bromides</topic><topic>Coercivity</topic><topic>Electric fields</topic><topic>Excitons</topic><topic>Heterostructures</topic><topic>Magnetic anisotropy</topic><topic>Magnetic permeability</topic><topic>Magnetism</topic><topic>Magnetization</topic><topic>Molybdenum compounds</topic><topic>Optical reflection</topic><topic>Proximity</topic><topic>Proximity effect (electricity)</topic><topic>Spectroscopy</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ciorciaro, Livio</creatorcontrib><creatorcontrib>Kroner, Martin</creatorcontrib><creatorcontrib>Watanabe, Kenji</creatorcontrib><creatorcontrib>Taniguchi, Takashi</creatorcontrib><creatorcontrib>Imamoglu, Atac</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ciorciaro, Livio</au><au>Kroner, Martin</au><au>Watanabe, Kenji</au><au>Taniguchi, Takashi</au><au>Imamoglu, Atac</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of Magnetic Proximity Effect Using Resonant Optical Spectroscopy of an Electrically Tunable MoSe2/CrBr3 Heterostructure</atitle><jtitle>Physical review letters</jtitle><date>2020-05-15</date><risdate>2020</risdate><volume>124</volume><issue>19</issue><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant optical reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable MoSe2/CrBr3 heterostructure. The high quality of the interface leads to a giant zero-field splitting of the K and K′ valley excitons in MoSe2, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant optical spectroscopy to fully characterize the CrBr3 magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevLett.124.197401</doi><oa>free_for_read</oa></addata></record> |
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| source | American Physical Society Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Chromium bromides Coercivity Electric fields Excitons Heterostructures Magnetic anisotropy Magnetic permeability Magnetism Magnetization Molybdenum compounds Optical reflection Proximity Proximity effect (electricity) Spectroscopy Spectrum analysis |
| title | Observation of Magnetic Proximity Effect Using Resonant Optical Spectroscopy of an Electrically Tunable MoSe2/CrBr3 Heterostructure |
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