Structural and magnetic properties of an InGaAs/Fe$_3$Si superlattice in cylindrical geometry

Details Structural and magnetic properties of an InGaAs/Fe$_3$Si superlattice in cylindrical geometry Structural and magnetic properties of an InGaAs/Fe$_3$Si superlattice in cylindrical geometry

2008-10-05

arxiv.org/abs/0810.0835v2

Nanotechnology 20, 045703 (2009)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1088/0957-4484/20/4/045703

The structure and the magnetic properties of an InGaAs/Fe3Si superlattice in a cylindrical geometry are investigated by electron microscopy techniques, x-ray diffraction and magnetometry. To form a radial superlattice, a pseudomorphic InGaAs/Fe3As bilayer has been released from its substrate self-forming into a rolled-up microtube. 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.

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