{"id":11182,"date":"2024-09-10T09:55:53","date_gmt":"2024-09-10T07:55:53","guid":{"rendered":"https:\/\/lncmi.cnrs.fr\/?page_id=11182"},"modified":"2025-06-03T10:10:26","modified_gmt":"2025-06-03T08:10:26","slug":"chiralite-et-magnetisme","status":"publish","type":"page","link":"https:\/\/lncmi.cnrs.fr\/en\/optics-and-diluted-matter\/chiralite-et-magnetisme\/","title":{"rendered":"Chirality and magnetism"},"content":{"rendered":"

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Chirality<\/strong> and magnetism<\/strong> have a common history which date back to the nineteen century. It is based on the similar optical response of chiral and magnetized media when exposed to circularly polarized light. This similarity has raised many attempts, often vains, on the possibility to control chiral systems with magnetic fields.<\/p>\n<\/div>\n

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On the basis of symmetry arguments, the interaction between chirality and magnetism is possible if the magnetic field is associated with another physical entity, such as electric current or light, even unpolarized. This association induces a “true chiral” influence, as defined by L. D. Barron. These two ways of associating light and electric current with magnetic fields are studied at the LNCMI since several years. They result in a different response of two enantiomers of a chiral system when unpolarized light (Magneto-Chiral Dichroism, MChD<\/strong>) or electric current (Magneto-Chiral Anisotopy, eMChA<\/strong>) are parallel\/antiparallel applied with respect to the applied magnetic field.<\/span><\/span><\/p>\n

More recently, we are focusing also on the inverse effect, notably, the generation of enantiomeric excesses under a true chiral influence (Magneto-Chiral Photochemistry, <\/strong>\u00a0MChPh<\/strong>) or falsely chiral, or the generation of a magnetization by light irradiation in a magnetic field (<\/span>inverse Magneto-Chiral Dichroism<\/strong>,\u00a0iMChD<\/strong>).<\/span><\/p>\n<\/div>\n

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Research staff<\/h3>\n

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\"ATZORI<\/a><\/figure><\/div>

ATZORI Matteo<\/a><\/span><\/h3>
Researcher<\/a><\/div>