Reaching the magnetic anisotropy limit of a 3 d metal atom

• Published in: Science (American Association for the Advancement of Science) Vol. 344; no. 6187; pp. 988 - 992
• Main Authors: Rau, Ileana G., Baumann, Susanne, Rusponi, Stefano, Donati, Fabio, Stepanow, Sebastian, Gragnaniello, Luca, Dreiser, Jan, Piamonteze, Cinthia, Nolting, Frithjof, Gangopadhyay, Shruba, Albertini, Oliver R., Macfarlane, Roger M., Lutz, Christopher P., Jones, Barbara A., Gambardella, Pietro, Heinrich, Andreas J., Brune, Harald
• Format: Journal Article
• Language: English
• Published: 30.05.2014

A study of the magnetic response of cobalt atoms adsorbed on oxide surfaces may lead to much denser storage of data. In hard drives, data are stored as magnetic bits; the magnetic field pointing up or down corresponds to storing a zero or a one. The smallest bit possible would be a single atom, but...