Speaker
Mr
David M. Bracher
(Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen, Switzerland)
Description
Antiferromagnetic materials play an important role in modern spintronics devices. While the properties of antiferromagnetic bulk materials are often well investigated, much less is known about their properties at the nanoscale. Here, we use X-ray photo-emission electron microscopy (X-PEEM) together with X-ray magnetic linear dichroism to study the magnetism of individual goethite nanoparticles. The X-PEEM data are combined with scanning electron microscopy to correlate the magnetic properties of the nanoparticles with their actual morphology. Our data indicate that goethite nanoparticles are antiferromagnetically ordered at room temperature, similar to the respective bulk, however, a preferred magnetization axis is not found.
Author
Mr
David M. Bracher
(Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen, Switzerland)
Co-authors
Mrs
Tatiana M. Savchenko
(Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen, Switzerland)
Mr
Marcus Wyss
(University of Basel)
Dr
Giorgia Olivieri
(Laboratory for Surface Science and Technology, Department of Materials ETH Zürich, CH-8093,HCI G543)
Dr
Brown Matthew A.
(Laboratory for Surface Science and Technology, Department of Materials ETH Zürich, CH-8093,HCI G543)
Prof.
Frithjof Nolting
(Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen, Switzerland)
Dr
Martino Poggio
(Department of Physics, University of Basel, CH-4056 Basel, Klingelberstrasse 82, Switzerland)
Armin Kleibert
(Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen, Switzerland)
