Vector magnetization imaging in ferromagnetic thin films using soft x-rays

A magnetization vector M imaging using a transmission x-ray microscope with magnetic circular dichroism (MCD) contrast is demonstrated. MCD images through a semitransparent, 33-nm-thick Fe film are measured at the Fe L(3) edge along three different x-ray propagation directions to determine all three components of the M. The transmission images clearly display the vector nature of complex microstructures, associated with the M reversal between oppositely oriented 180 degrees domains, including not only 90 degrees domains, a Neel wall-like structure, and an extended ripple structure, but also a striking feature of localized magnetization spirals with perpendicular components at their cores. These studies have important implications for applications of this technique to better understand the expected features as well as details of domain-wall structures. (C) 2001 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2001-04
Language
ENG
Keywords

ELECTRON-MICROSCOPY; CIRCULAR-DICHROISM; CO FILMS; EXCHANGE; MICROSTRUCTURE; PERMALLOY; DOMAINS; WALLS

Citation

APPLIED PHYSICS LETTERS, v.78, no.18, pp.2742 - 2744

ISSN
0003-6951
URI
http://hdl.handle.net/10203/13877
Appears in Collection
PH-Journal Papers(저널논문)
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