Distribution of magnetic domain pinning fields in Ga1-x Mnx As ferromagnetic films

Jungtaek Kim; D. Y. Shin; Sanghoon Lee; X. Liu; J. K. Furdyna

doi:10.1103/PhysRevB.78.075309

Distribution of magnetic domain pinning fields in Ga1-x Mnx As ferromagnetic films

Jungtaek Kim, D. Y. Shin, Sanghoon Lee, X. Liu, J. K. Furdyna

Department of Physics

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

20 Citations (Scopus)

Abstract

The distribution of magnetic domain pinning fields was determined in ferromagnetic GaMnAs films using the angular dependence of the planar Hall effect. A major difference is found between the pinning field distribution in as-grown and in annealed films: the former showing a strikingly narrower distribution than the latter. This effect, which we ascribe to differences in the degree of uniformity of magnetic anisotropy, provides a better understanding of magnetic domain landscape in GaMnAs, a subject of current intense interest.

Original language	English
Article number	075309
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.78.075309
Publication status	Published - 2008 Aug 7

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.78.075309

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abstract = "The distribution of magnetic domain pinning fields was determined in ferromagnetic GaMnAs films using the angular dependence of the planar Hall effect. A major difference is found between the pinning field distribution in as-grown and in annealed films: the former showing a strikingly narrower distribution than the latter. This effect, which we ascribe to differences in the degree of uniformity of magnetic anisotropy, provides a better understanding of magnetic domain landscape in GaMnAs, a subject of current intense interest.",

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Distribution of magnetic domain pinning fields in Ga1-x Mnx As ferromagnetic films

Abstract

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