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Atomic spin structure of antiferromagnetic domain walls
- Source :
- Nature materials. 5(6)
- Publication Year :
- 2005
-
Abstract
- The search for uncompensated magnetic moments on antiferromagnetic surfaces is of great technological importance as they are responsible for the exchange-bias effect that is widely used in state-of-the-art magnetic storage devices. We have studied the atomic spin structure of phase domain walls in the antiferromagnetic Fe monolayer on W(001) by means of spin-polarized scanning tunnelling microscopy and Monte Carlo simulations. The domain wall width only amounts to 6–8 atomic rows. Although walls oriented along 〈100〉 directions are found to be fully compensated, detailed analysis of 〈110〉-oriented walls reveals an uncompensated perpendicular magnetic moment. Our result represents a major advance in the field of antiferromagnetism, and may lead to a better understanding of the magnetic interaction between ferromagnetic and antiferromagnetic materials.
- Subjects :
- Condensed matter physics
Magnetic moment
Magnetic domain
Chemistry
Mechanical Engineering
Magnetic storage
Spin polarized scanning tunneling microscopy
General Chemistry
Condensed Matter Physics
law.invention
Domain wall (magnetism)
Ferromagnetism
Mechanics of Materials
law
Antiferromagnetism
Condensed Matter::Strongly Correlated Electrons
General Materials Science
Quantum tunnelling
Subjects
Details
- ISSN :
- 14761122
- Volume :
- 5
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Nature materials
- Accession number :
- edsair.doi.dedup.....a05c6fdb03a32bf022a53c3abef2516c