|
|||||
|
|
Ultrafast Photoswitching in a Copper‐Nitroxide‐Based Molecular Magnet |
|
| Authors: | Dr. Wawrzyniec Kaszub Andrea Marino Dr. Maciej Lorenc Prof. Eric Collet Prof. Elena G. Bagryanskaya Prof. Evgeny V. Tretyakov Prof. Victor I. Ovcharenko Prof. Matvey V. Fedin |
| Affiliation: | 1. Institut de Physique de Rennes, UMR UR1‐ CNRS 6251, Universite Rennes 1, 35042 Rennes cedex (France);2. International Tomography Center SB RAS, Institutskaya 3a, 630090, Novosibirsk (Russia);3. N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Lavrentiev av. 9, 630090, Novosibirsk (Russia);4. Novosibirsk State University, Pirogova 2, 630090, Novosibirsk (Russia) |
| Abstract: | 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. |
| Keywords: | LIESST molecular magnets photomagnetism spin crossover UV/Vis spectroscopy |