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.
Institute for Integrative Nanosciences, IFW Dresden, Dresden, Germany. c.deneke@ifw-dresden.de
Ch
Ch
Deneke
J
J
Schumann
R
R
Engelhard
J
J
Thomas
C
C
Müller
M S
MS
Khatri
A
A
Malachias
M
M
Weisser
T H
TH
Metzger
O G
OG
Schmidt