Magnetic hysteresis and strong ferromagnetic coupling of sulfur-bridged Dy ions in clusterfullerene Dy2S@C82
dc.bibliographicCitation.firstPage | 3521 | eng |
dc.bibliographicCitation.issue | 19 | eng |
dc.bibliographicCitation.journalTitle | Inorganic Chemistry Frontiers | eng |
dc.bibliographicCitation.lastPage | 3532 | eng |
dc.bibliographicCitation.volume | 7 | eng |
dc.contributor.author | Krylov, Denis | |
dc.contributor.author | Velkos, Georgios | |
dc.contributor.author | Chen, Chia-Hsiang | |
dc.contributor.author | Büchner, Bernd | |
dc.contributor.author | Kostanyan, Aram | |
dc.contributor.author | Greber, Thomas | |
dc.contributor.author | Avdoshenko, Stanislav M. | |
dc.contributor.author | Popov, Alexey A. | |
dc.date.accessioned | 2021-08-23T11:55:08Z | |
dc.date.available | 2021-08-23T11:55:08Z | |
dc.date.issued | 2020 | |
dc.description.abstract | Two isomers of metallofullerene Dy2S@C82 with sulfur-bridged Dy ions exhibit broad magnetic hysteresis with sharp steps at sub-Kelvin temperature. Analysis of the level crossing events for different orientations of a magnetic field showed that even in powder samples, the hysteresis steps caused by quantum tunneling of magnetization can provide precise information on the strength of intramolecular Dy⋯Dy interactions. A comparison of different methods to determine the energy difference between ferromagnetic and antiferromagnetic states showed that sub-Kelvin hysteresis gives the most robust and reliable values. The ground state in Dy2S@C82 has ferromagnetic coupling of Dy magnetic moments, whereas the state with antiferromagnetic coupling in Cs and C3v cage isomers is 10.7 and 5.1 cm-1 higher, respectively. The value for the Cs isomer is among the highest found in metallofullerenes and is considerably larger than that reported in non-fullerene dinuclear molecular magnets. Magnetization relaxation times measured in zero magnetic field at sub-Kelvin temperatures tend to level off near 900 and 3200 s in Cs and C3v isomers. These times correspond to the quantum tunneling relaxation mechanism, in which the whole magnetic moment of the Dy2S@C82 molecule flips at once as a single entity. © the Partner Organisations. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/6573 | |
dc.identifier.uri | https://doi.org/10.34657/5620 | |
dc.language.iso | eng | eng |
dc.publisher | Cambridge : RSC | eng |
dc.relation.doi | https://doi.org/10.1039/d0qi00771d | |
dc.relation.essn | 2052-1553 | |
dc.relation.issn | 2052-1545 | |
dc.rights.license | CC BY 3.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | eng |
dc.subject.ddc | 540 | eng |
dc.subject.other | Antiferromagnetism | eng |
dc.subject.other | Electron tunneling | eng |
dc.subject.other | Ferromagnetic materials | eng |
dc.subject.other | Ferromagnetism | eng |
dc.subject.other | Fullerenes | eng |
dc.subject.other | Ground state | eng |
dc.subject.other | Magnetic fields | eng |
dc.subject.other | Magnetic hysteresis | eng |
dc.subject.other | Magnetic moments | eng |
dc.subject.other | Magnetization | eng |
dc.subject.other | Plants (botany) | eng |
dc.subject.other | Sulfur | eng |
dc.subject.other | Antiferromagnetic coupling | eng |
dc.subject.other | Ferromagnetic and anti-ferromagnetic | eng |
dc.subject.other | Ferromagnetic coupling | eng |
dc.subject.other | Kelvin temperatures | eng |
dc.subject.other | Magnetization relaxation | eng |
dc.subject.other | Quantum tunneling of magnetization | eng |
dc.subject.other | Relaxation mechanism | eng |
dc.subject.other | Zero magnetic fields | eng |
dc.subject.other | Isomers | eng |
dc.title | Magnetic hysteresis and strong ferromagnetic coupling of sulfur-bridged Dy ions in clusterfullerene Dy2S@C82 | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | IFWD | eng |
wgl.subject | Chemie | eng |
wgl.type | Zeitschriftenartikel | eng |
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