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Experimental determination of single molecule toroic behaviour in a Dy8 single molecule magnet

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Experimental determination of single molecule toroic behaviour in a Dy8 single molecule magnet

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dc.contributor.author	Zhang, Qing
dc.contributor.author	Baker, Michael L.
dc.contributor.author	Li, Shiqi
dc.contributor.author	Sarachik, Myriam P.
dc.contributor.author	Baldoví, José J.
dc.contributor.author	Gaita Ariño, Alejandro
dc.contributor.author	Coronado Miralles, Eugenio
dc.contributor.author	Alexandropoulos, Dimitris I.
dc.contributor.author	Stamatatos, Theocharis C.
dc.date.accessioned	2021-05-07T08:16:31Z
dc.date.available	2021-05-08T04:45:05Z
dc.date.issued	2019	es_ES
dc.identifier.citation	Qing Zhang, Michael L. Baker, Shiqi Li, Myriam P. Sarachik, José J. Baldoví, Alejandro Gaita-Ariño, Eugenio Coronado, Dimitris I. Alexandropoulos, Theocharis C. Stamatatos, Nanoscale, 2019, 11, 15131-15138	es_ES
dc.identifier.uri	https://hdl.handle.net/10550/79247
dc.description.abstract	The enhancement of toroic motifs through coupling toroidal moments within molecular nanomagnets is a new, interesting and relevant approach for both fundamental research and potential quantum computation applications. We investigate a Dy8 molecular cluster and discover it has a antiferrotoroic ground state with slow magnetic relaxation. The experimental characterization of the magnetic anisotropy axes of each magnetic center and their exchange interactions represents a considerable challenge due to the non-magnetic nature of the toroidal motif. To overcome this and obtain access to the low energy states of Dy8 we establish a multi-orientation single-crystal micro Hall sensor magnetometry approach. Using an effective Hamiltonian model we then unpick the microscopic spin structure of Dy8, leading to a canted antiferrotoroidic tetramer molecular ground state. These findings are supported with electrostatic calculations that independently confirm the experimentally determined magnetic anisotropy axes for each DyIII ion within the molecule.	es_ES
dc.description.abstract	The enhancement of toroic motifs through coupling toroidal moments within molecular nanomagnets is a new, interesting and relevant approach for both fundamental research and potential quantum computation applications. We investigate a Dy8 molecular cluster and discover it has a antiferrotoroic ground state with slow magnetic relaxation. The experimental characterization of the magnetic anisotropy axes of each magnetic center and their exchange interactions represents a considerable challenge due to the non-magnetic nature of the toroidal motif. To overcome this and obtain access to the low energy states of Dy8 we establish a multi-orientation single-crystal micro Hall sensor magnetometry approach. Using an effective Hamiltonian model we then unpick the microscopic spin structure of Dy8, leading to a canted antiferrotoroidic tetramer molecular ground state. These findings are supported with electrostatic calculations that independently confirm the experimentally determined magnetic anisotropy axes for each DyIII ion within the molecule.	en_US
dc.language.iso	en	es_ES
dc.title	Experimental determination of single molecule toroic behaviour in a Dy8 single molecule magnet	es_ES
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::QUÍMICA	es_ES
dc.identifier.doi	10.1039/C9NR05182A	es_ES
dc.identifier.idgrec	134502	es_ES
dc.accrualmethod	-	es_ES
dc.embargo.terms	0 days	es_ES
dc.relation.projectID	ARO W911NF-13-1-1025	es_ES
dc.relation.projectID	NSF-DMR-1309008	es_ES
dc.relation.projectID	NSF-DMR-1309202	es_ES
dc.relation.projectID	MAT2017-89528	es_ES
dc.relation.projectID	CTQ2017-89993	es_ES
dc.relation.projectID	MDM-2015-0538	es_ES
dc.relation.projectID	ERC-CoG-647301 DECRESIM	es_ES
dc.relation.projectID	COST-MOLSPIN CA15128	es_ES
dc.relation.projectID	GVA/Prometeo Program of excellence	es_ES