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Ultrafast Photoswitching in a Copper‐Nitroxide‐Based Molecular Magnet
Author(s) -
Kaszub Wawrzyniec,
Marino Andrea,
Lorenc Maciej,
Collet Eric,
Bagryanskaya Elena G.,
Tretyakov Evgeny V.,
Ovcharenko Victor I.,
Fedin Matvey V.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201403672
Subject(s) - nitroxide mediated radical polymerization , ultrashort pulse , magnet , femtosecond , nanotechnology , materials science , copper , chemical physics , chemistry , laser , physics , optics , radical polymerization , quantum mechanics , copolymer , composite material , polymer , metallurgy
Molecular compounds with photoswitchable magnetic properties have been intensively investigated over the last decades due to their prospective applications in nanoelectronics, sensing and magnetic data storage. The family of copper‐nitroxide‐based molecular magnets represents a new promising type of photoswitchable compounds. We report the first study of these appealing systems using femtosecond optical spectroscopy. We unveil the mechanism of ultrafast (<50 fs) spin state photoswitching and establish its principal differences compared to other photoswitchable magnets. On this basis, we propose potential advantages of copper‐nitroxide‐based molecular magnets for the future design of ultrafast magnetic materials.