TY  - JOUR
A1  - Dobrovolskiy, Oleksandr V.
A1  - Kompaniiets, Maksym
A1  - Sachser, Roland
A1  - Porrati, Fabrizio
A1  - Gspan, Christian
A1  - Plank, Harald
A1  - Huth, Michael
T1  - Tunable magnetism on the lateral mesoscale by post-processing of Co/Pt heterostructures
T2  - Beilstein Journal of Nanotechnology
N2  - Controlling magnetic properties on the nanometer-scale is essential for basic research in micro-magnetism and spin-dependent transport, as well as for various applications such as magnetic recording, imaging and sensing. This has been accomplished to a very high degree by means of layered heterostructures in the vertical dimension. Here we present a complementary approach that allows for a controlled tuning of the magnetic properties of Co/Pt heterostructures on the lateral mesoscale. By means of in situ post-processing of Pt- and Co-based nano-stripes prepared by focused electron beam induced deposition (FEBID) we are able to locally tune their coercive field and remanent magnetization. Whereas single Co-FEBID nano-stripes show no hysteresis, we find hard-magnetic behavior for post-processed Co/Pt nano-stripes with coercive fields up to 850 Oe. We attribute the observed effects to the locally controlled formation of the CoPt L10 phase, whose presence has been revealed by transmission electron microscopy.
KW  - cobalt
KW  - focused electron beam induced deposition
KW  - heterostructures
KW  - in situ processing
KW  - platinum
Y1  - 2015
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/57223
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-572234
SN  - 2190-4286
VL  - 6
IS  - 1
SP  - 1082
EP  - 1090
PB  - Beilstein-Institut
CY  - Frankfurt am Main
ER  -