Spin noise in Er3+ single-ion magnets surrounded by ferromagnetic microparticles
Ferromagnetic microparticles significantly affect spin relaxation in the Er3+ single-ion magnet sandwiched in a composite material. The balance of thermal spin noise corresponding to Orbach, Raman, quantum tunneling, and direct relaxation channels is shifted in Er3+ complexes under the influence of...
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| Veröffentlicht in: | Applied physics letters 2023-04, Vol.122 (17) |
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| container_title | Applied physics letters |
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| creator | Morgunov, R. B. Allayarov, R. S. Kunitsyna, E. I. Koplak, O. V. |
| description | Ferromagnetic microparticles significantly affect spin relaxation in the Er3+ single-ion magnet sandwiched in a composite material. The balance of thermal spin noise corresponding to Orbach, Raman, quantum tunneling, and direct relaxation channels is shifted in Er3+ complexes under the influence of surrounding ferromagnetic matrix. There are two competing sources of the electron spin noise controlled by ferromagnetic media. First, internal residual magnetic field delays spin relaxation in the Er3+ complexes due to the Zeeman interaction of the Er3+ spin even in the absence of external magnetic field. Second, chemical bonding between the Er 4d shell and the O 1s shell accelerates magnetic relaxation in the Er3+ ions on the surface of microparticles. Significance of these results is that composite media can be sliced into small elements with a variable frequency of spin noise depending on individual magnetization programmed within each element. |
| doi_str_mv | 10.1063/5.0144644 |
| format | Article |
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B. ; Allayarov, R. S. ; Kunitsyna, E. I. ; Koplak, O. V.</creator><creatorcontrib>Morgunov, R. B. ; Allayarov, R. S. ; Kunitsyna, E. I. ; Koplak, O. V.</creatorcontrib><description>Ferromagnetic microparticles significantly affect spin relaxation in the Er3+ single-ion magnet sandwiched in a composite material. The balance of thermal spin noise corresponding to Orbach, Raman, quantum tunneling, and direct relaxation channels is shifted in Er3+ complexes under the influence of surrounding ferromagnetic matrix. There are two competing sources of the electron spin noise controlled by ferromagnetic media. First, internal residual magnetic field delays spin relaxation in the Er3+ complexes due to the Zeeman interaction of the Er3+ spin even in the absence of external magnetic field. Second, chemical bonding between the Er 4d shell and the O 1s shell accelerates magnetic relaxation in the Er3+ ions on the surface of microparticles. Significance of these results is that composite media can be sliced into small elements with a variable frequency of spin noise depending on individual magnetization programmed within each element.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/5.0144644</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Chemical bonds ; Composite materials ; Electron spin ; Ferromagnetism ; Magnetic fields ; Magnetic induction ; Magnetic relaxation ; Magnets ; Microparticles ; Quantum tunnelling</subject><ispartof>Applied physics letters, 2023-04, Vol.122 (17)</ispartof><rights>Author(s)</rights><rights>2023 Author(s). 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Significance of these results is that composite media can be sliced into small elements with a variable frequency of spin noise depending on individual magnetization programmed within each element.</description><subject>Applied physics</subject><subject>Chemical bonds</subject><subject>Composite materials</subject><subject>Electron spin</subject><subject>Ferromagnetism</subject><subject>Magnetic fields</subject><subject>Magnetic induction</subject><subject>Magnetic relaxation</subject><subject>Magnets</subject><subject>Microparticles</subject><subject>Quantum tunnelling</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LAzEQxYMoWKsHv0HAk8rWZLNJNkeR-gcKCuo5pJtJSWmza7Ir9Nsb2aIHwdPMMD_ezHsInVMyo0SwGz4jtKpEVR2gCSVSFozS-hBNCCGsEIrTY3SS0jqPvGRsgl5eOx9waH0CnJt5ZNc4-bDaQOHbgLdmFaBPOA0xtkOwYPFyhx3kaVz5Bm99E9vOxNxvIJ2iI2c2Cc72dYre7-dvd4_F4vnh6e52UTQll31hiGXK1aXjhgtQ0gEFaYC6WlhQRpJ6yRUV3CpFFBG2lk4Q3lArqOKCSTZFF6NuF9uPAVKv1-0QQz6pyzqbyzQjmbocqfxiShGc7qLfmrjTlOjvwDTX-8AyezWyqfG96bP9H_izjb-g7qz7D_6r_AUw8niF</recordid><startdate>20230424</startdate><enddate>20230424</enddate><creator>Morgunov, R. B.</creator><creator>Allayarov, R. S.</creator><creator>Kunitsyna, E. I.</creator><creator>Koplak, O. V.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-4859-2733</orcidid><orcidid>https://orcid.org/0000-0003-4208-2326</orcidid><orcidid>https://orcid.org/0000-0001-9953-4552</orcidid><orcidid>https://orcid.org/0000-0002-8621-0740</orcidid></search><sort><creationdate>20230424</creationdate><title>Spin noise in Er3+ single-ion magnets surrounded by ferromagnetic microparticles</title><author>Morgunov, R. B. ; Allayarov, R. S. ; Kunitsyna, E. I. ; Koplak, O. 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V.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Morgunov, R. B.</au><au>Allayarov, R. S.</au><au>Kunitsyna, E. I.</au><au>Koplak, O. V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spin noise in Er3+ single-ion magnets surrounded by ferromagnetic microparticles</atitle><jtitle>Applied physics letters</jtitle><date>2023-04-24</date><risdate>2023</risdate><volume>122</volume><issue>17</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>Ferromagnetic microparticles significantly affect spin relaxation in the Er3+ single-ion magnet sandwiched in a composite material. The balance of thermal spin noise corresponding to Orbach, Raman, quantum tunneling, and direct relaxation channels is shifted in Er3+ complexes under the influence of surrounding ferromagnetic matrix. There are two competing sources of the electron spin noise controlled by ferromagnetic media. First, internal residual magnetic field delays spin relaxation in the Er3+ complexes due to the Zeeman interaction of the Er3+ spin even in the absence of external magnetic field. Second, chemical bonding between the Er 4d shell and the O 1s shell accelerates magnetic relaxation in the Er3+ ions on the surface of microparticles. Significance of these results is that composite media can be sliced into small elements with a variable frequency of spin noise depending on individual magnetization programmed within each element.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0144644</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-4859-2733</orcidid><orcidid>https://orcid.org/0000-0003-4208-2326</orcidid><orcidid>https://orcid.org/0000-0001-9953-4552</orcidid><orcidid>https://orcid.org/0000-0002-8621-0740</orcidid></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Chemical bonds Composite materials Electron spin Ferromagnetism Magnetic fields Magnetic induction Magnetic relaxation Magnets Microparticles Quantum tunnelling |
| title | Spin noise in Er3+ single-ion magnets surrounded by ferromagnetic microparticles |
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