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Magnetic behaviour of a spin-canted asymmetric lanthanide quinolate trimer

Batista, Lester; Paul, Sagar 1; Molina-Jirón, Concepción 2; Jaén, Juan A.; Fenske, Dieter 3; Fuhr, Olaf ORCID iD icon 3,4; Ruben, Mario 2,3; Wernsdorfer, Wolfgang 1,2; Moreno-Pineda, Eufemio 1
1 Physikalisches Institut (PHI), Karlsruher Institut für Technologie (KIT)
2 Institut für QuantenMaterialien und Technologien (IQMT), Karlsruher Institut für Technologie (KIT)
3 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
4 Karlsruhe Nano Micro Facility (KNMF), Karlsruher Institut für Technologie (KIT)

Abstract:

An asymmetrical dysprosium trimer with a molecular formula of [Dy$_3$ (hq)$_7$(hqH)(NO$_3$)$_2$ (H$_2$O)] was
obtained through a reflux reaction employing as starting material Dy(NO$_3$)$_3$·nH$_2$O and 8-quinolinoline as
ligand. Magnetic susceptibility investigations show the system to be an SMM, which was corroborated by
sub-Kelvin μSQUID studies. Upon cooling, the magnetic susceptibility also exhibits a decrease in the χMT
product, which was confirmed to be due to intramolecular antiferromagnetic interactions. μSQUID
measurements, moreover, reveal a marked magnetic behaviour in the angular dependence of the hyster-
esis loops. The latter is a direct consequence of the non-colinear spin arrangement of the anisotropy axes
of each Dy( III) ion in [Dy$_3$ (hq)$_7$(hqH)(NO$_3$ ) $_2$(H$_2$O)] and the interaction between the ions, as also evidenced
by CASSCF calculations. Our results evidence the effect of spin canting along with the intramolecular
interactions, which can induce non-trivial magnetic behaviour in SMMs.


Verlagsausgabe §
DOI: 10.5445/IR/1000173665
Veröffentlicht am 26.08.2024
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Institut für QuantenMaterialien und Technologien (IQMT)
Karlsruhe Nano Micro Facility (KNMF)
Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 06.08.2024
Sprache Englisch
Identifikator ISSN: 1477-9226, 0300-9246, 1364-5447, 1472-7773, 1477-9234, 2050-5671
KITopen-ID: 1000173665
HGF-Programm 47.12.02 (POF IV, LK 01) Exploratory Qubits
Weitere HGF-Programme 43.32.01 (POF IV, LK 01) Molecular Materials Basis for Optics & Photonics
Erschienen in Dalton Transactions
Verlag Royal Society of Chemistry (RSC)
Band 53
Heft 31
Seiten 12927–12935
Vorab online veröffentlicht am 16.07.2024
Nachgewiesen in Scopus
Web of Science
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