Speaker
Dr
Jan Gui-Hyon Dreiser
(Paul Scherrer Institut)
Description
Single-molecule magnets are exchange-coupled spin clusters showing slow relaxation of magnetization. In recent years, efforts have been intensified to increase the magnetization reversal barrier and thus enhance relaxation times by combining rare earth ions with transition-metal ions. Rare-earth ions exhibit very large magnetic anisotropies due to their strong spin-orbit coupling and their mostly unquenched orbital momentum. In this contribution we use X-ray magnetic circular dichroism to observe element-specific magnetization curves. In conjunction with SQUID magnetization and susceptibility measurements, we are able to obtain information about the magnetic coupling between 3d and 4f ions.
Please specify poster or talk
Poster
Please specify the session
Poster Session
Primary author
Dr
Jan Gui-Hyon Dreiser
(Paul Scherrer Institut)
Co-authors
Dr
Cinthia Piamonteze
(Paul Scherrer Institut)
Prof.
Frithjof Nolting
(Paul Scherrer Institut)
Prof.
Harald Brune
(EPF Lausanne)
Dr
Hoegni Weihe
(University of Copenhagen)
Prof.
Jesper Bendix
(University of Copenhagen)
Mr
Kasper S. Pedersen
(University of Copenhagen)
Prof.
Oliver Waldmann
(Freiburg University)
Dr
Stefano Rusponi
(EPF Lausanne)
