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Proceedings Paper

Single-molecule magnets on a polymeric thin film as magnetic quantum bits
Author(s): Daniel Ruiz-Molina; Jordi Gomez; Marta Mas-Torrent; Ana Isabel Balana; Nues Domingo; Javier Tejada; Maria Teresa Martinez; Concepcio Rovira; Jaume Veciana
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Paper Abstract

Single-molecule magnets (SMM) have a large-spin ground state with appreciable magnetic anisotropy, resulting in a barrier for the spin reversal As a consequence, interesting magnetic properties such as out-of-phase ac magnetic susceptibility signals and stepwise magnetization hysteresis loops are observed. In addition to resonant magnetization tunnelling, during the last few years several other interesting phenomena have also been reported. The origin of the slow magnetization relaxation rates as well as of other phenomena are due to individual molecules rather than to long-range ordering; as confirmed by magnetization relaxation and heat capacity studies. Therefore, SMM represent nanoscale magnetic particles of a sharply defined size that offer the potential access to the ultimate high-density information storage devices as well as for quantum computing applications. However, if a truly molecular computational device based on SMM is to be achieved, new systematic studies that allow us to find a proper way to address properly oriented individual molecules or molecular aggregates onto the surface of a thin film, where each molecule or molecular aggregate can be used as a bit of information, are highly required. Here we report a new soft, reliable and simple methodology to address individual Mn12 molecules onto a film surface, as revealed by Atomic Force Microscopy (AFM) and Magnetic Force Microscopy (MFM) images. Moreover, the advantageous properties of polymeric matrices, such as flexibility, transparency and low density, make this type of materials very interesting for potential applications.

Paper Details

Date Published: 29 April 2003
PDF: 8 pages
Proc. SPIE 5118, Nanotechnology, (29 April 2003); doi: 10.1117/12.499143
Show Author Affiliations
Daniel Ruiz-Molina, Institut de Ciencia de Materials de Barcelona (Spain)
Jordi Gomez, Instituto de Carboquimica (Spain)
Marta Mas-Torrent, Institut de Ciencia de Materials de Barcelona (Spain)
Ana Isabel Balana, Instituto de Carboquimica (Spain)
Nues Domingo, Univ. de Barcelona (Spain)
Javier Tejada, Univ. de Barcelona (Spain)
Maria Teresa Martinez, Instituto de Carboquimica (Spain)
Concepcio Rovira, Institut de Ciencia de Materials de Barcelona (Spain)
Jaume Veciana, Institut de Ciencia de Materials de Barcelona (Spain)

Published in SPIE Proceedings Vol. 5118:
Robert Vajtai; Xavier Aymerich; Laszlo B. Kish; Angel Rubio, Editor(s)

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