Loss of single-molecule-magnet behavior of a Mn12-based compound assembled in a monolayer
| Autor: | Guillaume Rogez, Jean-Paul Kappler, Bertrand Donnio, A. Barla, Emmanuel Terazzi, N. Grumbach, Jean-Louis Gallani, Loïc Joly |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Condensed matter physics Magnetic circular dichroism Magnetism equipment and supplies Condensed Matter Physics Magnetic hysteresis Electronic Optical and Magnetic Materials law.invention SQUID Condensed Matter::Materials Science Magnetization Core electron law Monolayer Single-molecule magnet human activities |
| Zdroj: | The European Physical Journal B. 73:103-108 |
| ISSN: | 1434-6036 1434-6028 |
| Popis: | Magnetic circular dichroism magnetization measurements on a monolayer of single molecule magnets have been performed and the results are presented. At the measurement temperature (2 K) the hysteresis cycle shows no opening, contrary to what is seen in the bulk with SQUID magnetometry. This result could surprisingly imply that XMCD is unsuited for such measurements given the fact that it excites the core electrons at the origin of the magnetism. This result could also mean that the blocking temperature is greatly decreased or that these molecules loose their hallmark when deposited as adsorbed films, precluding therefore their much sought-after use in magnetic memories. |
| Databáze: | OpenAIRE |
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