ATZORI, Matteo; LUDOWIEG, Herbert; VALENTÍN-PÉREZ, Ángela; CORTIJO, Miguel; BRESLAVETZ, Ivan; PAILLOT, Kévin; ROSA, Patrick; TRAIN, Cyrille; HILLARD, Elisabeth A.; AUTSCHBACH, Jochen; G.L.J.A., Rikken

doi:10.1126/sciadv.abg2859

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ATZORI, Matteo
Laboratoire national des champs magnétiques intenses - Grenoble [LNCMI-G ]
Laboratoire national des champs magnétiques intenses [LNCMI]

LUDOWIEG, Herbert
State University of New York [SUNY]

VALENTÍN-PÉREZ, Ángela
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Centre de Recherche Paul Pascal [CRPP]

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Article de revue

Ce document a été publié dans

Science Advances. 2021-04-21, vol. 7, n° 17, p. eabg2859 (8 p.)

American Association for the Advancement of Science (AAAS)

Résumé en anglais

Magnetochiral dichroism (MChD), a fascinating manifestation of the light-matter interaction characteristic for chiral systems under magnetic fields, has become a well-established optical phenomenon reported for many different materials. However, its interpretation remains essentially phenomenological and qualitative, because the existing microscopic theory has not been quantitatively confirmed by confronting calculations based on this theory with experimental data. Here, we report the experimental low-temperature MChD spectra of two archetypal chiral paramagnetic crystals taken as model systems, tris(1,2-diaminoethane)nickel(II) and cobalt(II) nitrate, for light propagating parallel or perpendicular to the c axis of the crystals, and the calculation of the MChD spectra for the Ni(II) derivative by state-of-the-art quantum chemical calculations. By incorporating vibronic coupling, we find good agreement between experiment and theory, which opens the way for MChD to develop into a powerful chiral spectroscopic tool and provide fundamental insights for the chemical design of new magnetochiral materials for technological applications.< Réduire

DOI

http://dx.doi.org/10.1126/sciadv.abg2859

Project ANR

Conducteurs Moléculaires Chiraux
Approche Moléculaire de composés multiferroïques nanostructurés - ANR-18-CE09-0032
Nanocomposites hélicoïdaux pour l'induction de dichroïsme magnéto-chiral - ANR-19-CE09-0018

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026