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research article
Magnetic Hysteresis in Er Trimers on Cu(111)
2016
We report magnetic hysteresis in Er clusters on. Cu(111) starting from the size-of three atoms. combining Xray magnetic circular dichroism, scanning tunneling microscopy, and mean-field nucleation theory, we determine the size dependent magnetic properties of the Er clusters. Er atoms and dimers-are paramagnetic, and their easy magnetization axes are oriented in-plane. In contrast, timers and bigger dusters exhibit magnetic hysteresis at 2.5 K with a relaxation time of 2 min at 0.1 T and out-of-plane easy axis. This appearance of magnetic stability for trimers coincides with their enhanced structural stability.
Use this identifier to reference this record
Type
research article
Web of Science ID
WOS:000377642700009
Authors
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Wackerlin, Christian
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Publication date
2016
Publisher
Published in
Volume
16
Issue
6
Start page
3475
End page
3481
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
July 19, 2016