First-principles calculation of exchange force on a magnetic Fe surface

Authors
Nakamura, K Oguchi, T Hasegawa, H Sueoka, K Hayakawa, K Mukasa, K
Citation
K. Nakamura et al., First-principles calculation of exchange force on a magnetic Fe surface, APPL SURF S, 142(1-4), 1999, pp. 433-437
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
APPLIED SURFACE SCIENCE
ISSN journal
01694332 → ACNP
Volume
142
Issue
1-4
Year of publication
1999
Pages
433 - 437
Database
ISI
SICI code
0169-4332(199904)142:1-4<433:FCOEFO>2.0.ZU;2-O
Abstract
We have investigated the exchange force between two Fe(001) films by first- principles calculations to show the feasibility of exchange force microscop y which probes the exchange force between a tip and a sample. We found that a surface magnetic image of an Fe(001) surface with atomic resolution can be achieved by measuring the exchange force. The image contrast was clearly enhanced when d/a < 1, where d is the distance between the two films and a is the lattice constant of bulk Fe. (C) 1999 Elsevier Science B.V. All rig hts reserved.