Soft perpendicular magnetization and spin reorientation transition of Fe films on NiAl(001)

Yin Chih Lin; Chii Bin Wu; Wei Shu Li; Ying Chin Chen; Zheng Yuan Huang; Wen Chin Lin; Minn Tsong Lin

doi:10.7567/APEX.7.023005

Soft perpendicular magnetization and spin reorientation transition of Fe films on NiAl(001)

Yin Chih Lin, Chii Bin Wu, Wei Shu Li, Ying Chin Chen, Zheng Yuan Huang, Wen Chin Lin^*, Minn Tsong Lin

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Ultrathin Fe films were deposited on NiAl(001) for studies of their magnetic properties and crystalline structures. Thickness-driven perpendicular to in-plane spin reorientation transition was observed at a thickness of ∼4 monolayers (MLs) at room temperature without structural variation. At less than the critical thickness, the Fe film's easy axis is perpendicular to the surface plane with a small coercive field (H_c ≈ 1 Oe), which was much smaller than that of other systems with perpendicular anisotropy. The Fe/NiAl(001) system revealed an extremely soft perpendicular magnetization. At more than the critical thickness, the easy axis lays in the surface plane. The magnetic anisotropy terms were calculated and discussed through a phenomenological model. The weaker surface anisotropy might be attributed to the reconstructed NiAl(001) surface.

Original language	English
Article number	023005
Journal	Applied Physics Express
Volume	7
Issue number	2
DOIs	https://doi.org/10.7567/APEX.7.023005
Publication status	Published - 2014 Feb

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

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title = "Soft perpendicular magnetization and spin reorientation transition of Fe films on NiAl(001)",

abstract = "Ultrathin Fe films were deposited on NiAl(001) for studies of their magnetic properties and crystalline structures. Thickness-driven perpendicular to in-plane spin reorientation transition was observed at a thickness of ∼4 monolayers (MLs) at room temperature without structural variation. At less than the critical thickness, the Fe film's easy axis is perpendicular to the surface plane with a small coercive field (Hc ≈ 1 Oe), which was much smaller than that of other systems with perpendicular anisotropy. The Fe/NiAl(001) system revealed an extremely soft perpendicular magnetization. At more than the critical thickness, the easy axis lays in the surface plane. The magnetic anisotropy terms were calculated and discussed through a phenomenological model. The weaker surface anisotropy might be attributed to the reconstructed NiAl(001) surface.",

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AU - Lin, Yin Chih

AU - Wu, Chii Bin

AU - Li, Wei Shu

AU - Chen, Ying Chin

AU - Huang, Zheng Yuan

AU - Lin, Wen Chin

AU - Lin, Minn Tsong

PY - 2014/2

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N2 - Ultrathin Fe films were deposited on NiAl(001) for studies of their magnetic properties and crystalline structures. Thickness-driven perpendicular to in-plane spin reorientation transition was observed at a thickness of ∼4 monolayers (MLs) at room temperature without structural variation. At less than the critical thickness, the Fe film's easy axis is perpendicular to the surface plane with a small coercive field (Hc ≈ 1 Oe), which was much smaller than that of other systems with perpendicular anisotropy. The Fe/NiAl(001) system revealed an extremely soft perpendicular magnetization. At more than the critical thickness, the easy axis lays in the surface plane. The magnetic anisotropy terms were calculated and discussed through a phenomenological model. The weaker surface anisotropy might be attributed to the reconstructed NiAl(001) surface.

AB - Ultrathin Fe films were deposited on NiAl(001) for studies of their magnetic properties and crystalline structures. Thickness-driven perpendicular to in-plane spin reorientation transition was observed at a thickness of ∼4 monolayers (MLs) at room temperature without structural variation. At less than the critical thickness, the Fe film's easy axis is perpendicular to the surface plane with a small coercive field (Hc ≈ 1 Oe), which was much smaller than that of other systems with perpendicular anisotropy. The Fe/NiAl(001) system revealed an extremely soft perpendicular magnetization. At more than the critical thickness, the easy axis lays in the surface plane. The magnetic anisotropy terms were calculated and discussed through a phenomenological model. The weaker surface anisotropy might be attributed to the reconstructed NiAl(001) surface.

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Soft perpendicular magnetization and spin reorientation transition of Fe films on NiAl(001)

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