Spin Relaxation in Single-Ion Magnets under the Slowing Down Effect Produced by the Stray Field of Ferromagnetic Microparticles
The quantum tunneling of magnetization accelerates magnetic relaxation in transition and rare-earth ion complexes and often leads to the degradation of the characteristics of single-molecule or single-ion magnets. On the other hand, the applied dc magnetic field slows down the quantum tunneling of m...
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| Veröffentlicht in: | JETP letters 2021-06, Vol.113 (12), p.794-800 |
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| creator | Koplak, O. V. Dvoretskaya, E. V. Kunitsyna, E. I. Korolev, D. V. Palii, A. V. Morgunov, R. B. |
| description | The quantum tunneling of magnetization accelerates magnetic relaxation in transition and rare-earth ion complexes and often leads to the degradation of the characteristics of single-molecule or single-ion magnets. On the other hand, the applied dc magnetic field slows down the quantum tunneling of magnetization and favors other channels of spin relaxation. In this work, the stray magnetic field related to ferromagnetic microparticles occurring in the SIM composite with PrDyFeCoB microparticles is proposed instead of the applied field. The adjustable remanent magnetization of microparticles makes it possible to control the required stray field, which can be used to tune the spin relaxation rate in the complexes surrounding the microparticles. In this case, a slow spin relaxation is observed at zero applied field. |
| doi_str_mv | 10.1134/S0021364021120080 |
| format | Article |
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V. ; Dvoretskaya, E. V. ; Kunitsyna, E. I. ; Korolev, D. V. ; Palii, A. V. ; Morgunov, R. B.</creator><creatorcontrib>Koplak, O. V. ; Dvoretskaya, E. V. ; Kunitsyna, E. I. ; Korolev, D. V. ; Palii, A. V. ; Morgunov, R. B.</creatorcontrib><description>The quantum tunneling of magnetization accelerates magnetic relaxation in transition and rare-earth ion complexes and often leads to the degradation of the characteristics of single-molecule or single-ion magnets. On the other hand, the applied dc magnetic field slows down the quantum tunneling of magnetization and favors other channels of spin relaxation. In this work, the stray magnetic field related to ferromagnetic microparticles occurring in the SIM composite with PrDyFeCoB microparticles is proposed instead of the applied field. The adjustable remanent magnetization of microparticles makes it possible to control the required stray field, which can be used to tune the spin relaxation rate in the complexes surrounding the microparticles. 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The adjustable remanent magnetization of microparticles makes it possible to control the required stray field, which can be used to tune the spin relaxation rate in the complexes surrounding the microparticles. In this case, a slow spin relaxation is observed at zero applied field.</description><subject>Atomic</subject><subject>Biological and Medical Physics</subject><subject>Biophysics</subject><subject>Condensed Matter</subject><subject>Ferromagnetism</subject><subject>Magnetic fields</subject><subject>Magnetic induction</subject><subject>Magnetic relaxation</subject><subject>Magnetism</subject><subject>Magnetization</subject><subject>Magnets</subject><subject>Metal ions</subject><subject>Microparticles</subject><subject>Molecular</subject><subject>Optical and Plasma Physics</subject><subject>Particle and Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Information Technology</subject><subject>Quantum tunnelling</subject><subject>Rare earth elements</subject><subject>Solid State Physics</subject><subject>Spintronics</subject><issn>0021-3640</issn><issn>1090-6487</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1UE1PwzAMjRBIjMEP4BaJcyFOm7Q9orHBpE0gCucqTd3RqWtK0mrsxF8nY0gcEBfbT-_Dlgm5BHYNEEY3GWMcQhn5CpyxhB2REbCUBTJK4mMy2tPBnj8lZ86tGQNIwnhEPrOubukzNupD9bVpqUdZ3a4aDOYeLdWqxd7RoS3R0v4NadaYrefpndm2dFpVqHv6ZE05aCxpsTtoeqt2dFZjU1JT0RlaazbfSbWmy1pb0ynr5wbdOTmpVOPw4qePyets-jJ5CBaP9_PJ7SLQPJJ9kMhCCyy1whh4DBGoUiYlCCESLWNeCZHqiutUhlDwBFUYa-CC8wJEnKIowjG5OuR21rwP6Pp8bQbb-pU5FzLhsQiF9Co4qPyJzlms8s7WG2V3ObB8_-f8z5-9hx88zmvbFdrf5P9NX1XVfwk</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Koplak, O. 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V.</creatorcontrib><creatorcontrib>Dvoretskaya, E. V.</creatorcontrib><creatorcontrib>Kunitsyna, E. I.</creatorcontrib><creatorcontrib>Korolev, D. V.</creatorcontrib><creatorcontrib>Palii, A. V.</creatorcontrib><creatorcontrib>Morgunov, R. B.</creatorcontrib><collection>CrossRef</collection><jtitle>JETP letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Koplak, O. V.</au><au>Dvoretskaya, E. V.</au><au>Kunitsyna, E. I.</au><au>Korolev, D. V.</au><au>Palii, A. V.</au><au>Morgunov, R. 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| subjects | Atomic Biological and Medical Physics Biophysics Condensed Matter Ferromagnetism Magnetic fields Magnetic induction Magnetic relaxation Magnetism Magnetization Magnets Metal ions Microparticles Molecular Optical and Plasma Physics Particle and Nuclear Physics Physics Physics and Astronomy Quantum Information Technology Quantum tunnelling Rare earth elements Solid State Physics Spintronics |
| title | Spin Relaxation in Single-Ion Magnets under the Slowing Down Effect Produced by the Stray Field of Ferromagnetic Microparticles |
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