Structural and magnetic properties of an InGaAs/Fe3Si superlattice in cylindrical geometry.
The structure and magnetic properties of an InGaAs/Fe(3)Si superlattice in a cylindrical geometry are investigated by electron microscopy techniques, x-ray diffraction and magnetometry. To form a radial superlattice, a pseudomorphic InGaAs/Fe(3)Si bilayer has been released from its substrate self-forming into rolled-up microtubes. Oxide-free interfaces as well as areas of crystalline bonding are observed and an overall lattice mismatch between succeeding layers is determined. The cylindrical symmetry of the final radial superlattice shows a significant effect on the magnetization behavior of the rolled-up layers.
Deneke
Ch
Ch
Institute for Integrative Nanosciences, IFW Dresden, Dresden, Germany. c.deneke@ifw-dresden.de
Schumann
J
J
Engelhard
R
R
Thomas
J
J
Müller
C
C
Khatri
M S
MS
Malachias
A
A
Weisser
M
M
Metzger
T H
TH
Schmidt
O G
OG