Issue |
Europhys. Lett.
Volume 57, Number 1, January 2002
|
|
---|---|---|
Page(s) | 100 - 106 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2002-00547-6 | |
Published online | 01 September 2002 |
Ultra sharp domain walls in the closure domain
pattern of
Max-Planck-Institut für Mikrostrukturphysik -
Weinberg 2, 06120 Halle, Germany
Received:
14
May
2001
Accepted:
22
October
2001
We present high-resolution measurements on the closure domain
pattern of obtained with spin-polarized scanning
tunneling microscopy. Besides the well-estab lished wide surface
domain walls we find ultra sharp sections of the wall. The width
of these walls is only 1.1
, an order of magnitude less than
previously observed in bulk
. The ultra sharp domain
walls are explained on the basis of a micromagnetic model taking
into account the competition of exchange energy and magnetic
anisotropy.
PACS: 75.60.Ch – Domain walls and domain structure / 68.37.Ef – Scanning tunneling microscopy (including chemistry induced with STM) / 75.70.Rf – Surface magnetism
© EDP Sciences, 2002
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