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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mitcov D., Platunov M. S., Buch C. D., Reinholdt A., Dossing A. R., Wilhelm F., Rogalev A., Piligkos S.
Заглавие : Hard X-ray magnetochiral dichroism in a paramagnetic molecular 4f complex
Коллективы :
VILLUM FONDEN [13376]; Carlsberg FoundationCarlsberg Foundation [CF18-0613]; Independent Research Fund Denmark [9036-00015B]; Russian Science FoundationRussian Science Foundation (RSF) [19-72-00002]
Место публикации : Chem. Sci. - 2020. - Vol. 11, Is. 31. - P.8306-8311. - ISSN 2041-6520, DOI 10.1039/d0sc02709j. - ISSN 2041-6539(eISSN)
Примечания : Cited References: 74. - SP thanks the VILLUM FONDEN for research grant 13376. SP and DM thank the Danish Ministry of Higher Education and Science for travel support through the Instrument Center DANSCATT. AR thanks the Carlsberg Foundation (grant CF18-0613) and the Independent Research Fund Denmark (grant 9036-00015B) for funding. MP thanks the Russian Science Foundation (grant 19-72-00002) for funding
Предметные рубрики: CHIRAL DICHROISM
SINGLE-CRYSTAL
SPIN QUBITS
READ-OUT
L3-EDGE
Аннотация: Magnetochiral dichroism (MΧD) originates in the coupling of local electric fields and magnetic moments in systems where a simultaneous break of space parity and time-reversal symmetries occurs. This magnetoelectric coupling, displayed by chiral magnetic materials, can be exploited to manipulate the magnetic moment of molecular materials at the single molecule level. We demonstrate herein the first experimental observation of X-ray magnetochiral dichroism in enantiopure chiral trigonal single crystals of a chiral mononuclear paramagnetic lanthanide coordination complex, namely, holmium oxydiacetate, at the Ho L3-edge. The observed magnetochiral effect is opposite for the two enantiomers and is rationalised on the basis of a multipolar expansion of the matter–radiation interaction. These results demonstrate that 4f–5d hybridization in chiral lanthanoid coordination complexes is at the origin of magnetochiral dichroism, an effect that could be exploited for addressing of their magnetic moment at the single molecule level.
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