Abstract
The full-potential linearized augmented-plane-wave method with the atomic force approach has been used to determine the interface structure and magnetocrystalline anisotropy (MCA) of a Co monolayer on Cu(111), with and without Cu overlayers. It is found in good agreement with experiment, that the interface MCA for a fully relaxed structure is in-plane with a value of -0.30 meV for Co monolayer (ML) on Cu(111). When capped with nonmagnetic Cu, the interface MCA changes dramatically: for one ML Cu coverage, it is perpendicular to the film plane with a MCA value of + 0.23 meV; for two ML Cu coverage, it rapidly drops to -0.02 meV. Our results confirm that the hybridization at the Co/Cu interface plays an important role in the interface MCA of Co/Cu systems. By comparing the results of the fully relaxed structures with those of unrelaxed structures, we also found that relaxation is important for accurate determinations of the interface MCA.
| Original language | English |
|---|---|
| Pages (from-to) | 9770-9775 |
| Number of pages | 6 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 53 |
| Issue number | 15 |
| Publication status | Published - Apr 15 1996 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Overlayer-induced anomalous interface magnetocrystalline anisotropy in ultrathin Co films. / Zhong, Lieping; Kim, Miyoung; Wang, Xindong; Freeman, Arthur J.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 53, No. 15, 15.04.1996, p. 9770-9775.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Overlayer-induced anomalous interface magnetocrystalline anisotropy in ultrathin Co films
AU - Zhong, Lieping
AU - Kim, Miyoung
AU - Wang, Xindong
AU - Freeman, Arthur J
PY - 1996/4/15
Y1 - 1996/4/15
N2 - The full-potential linearized augmented-plane-wave method with the atomic force approach has been used to determine the interface structure and magnetocrystalline anisotropy (MCA) of a Co monolayer on Cu(111), with and without Cu overlayers. It is found in good agreement with experiment, that the interface MCA for a fully relaxed structure is in-plane with a value of -0.30 meV for Co monolayer (ML) on Cu(111). When capped with nonmagnetic Cu, the interface MCA changes dramatically: for one ML Cu coverage, it is perpendicular to the film plane with a MCA value of + 0.23 meV; for two ML Cu coverage, it rapidly drops to -0.02 meV. Our results confirm that the hybridization at the Co/Cu interface plays an important role in the interface MCA of Co/Cu systems. By comparing the results of the fully relaxed structures with those of unrelaxed structures, we also found that relaxation is important for accurate determinations of the interface MCA.
AB - The full-potential linearized augmented-plane-wave method with the atomic force approach has been used to determine the interface structure and magnetocrystalline anisotropy (MCA) of a Co monolayer on Cu(111), with and without Cu overlayers. It is found in good agreement with experiment, that the interface MCA for a fully relaxed structure is in-plane with a value of -0.30 meV for Co monolayer (ML) on Cu(111). When capped with nonmagnetic Cu, the interface MCA changes dramatically: for one ML Cu coverage, it is perpendicular to the film plane with a MCA value of + 0.23 meV; for two ML Cu coverage, it rapidly drops to -0.02 meV. Our results confirm that the hybridization at the Co/Cu interface plays an important role in the interface MCA of Co/Cu systems. By comparing the results of the fully relaxed structures with those of unrelaxed structures, we also found that relaxation is important for accurate determinations of the interface MCA.
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UR - http://www.scopus.com/inward/citedby.url?scp=0000412601&partnerID=8YFLogxK
M3 - Article
VL - 53
SP - 9770
EP - 9775
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 15
ER -