Quantitative investigation of magnetic domains with in-plane and out-of-plane easy axes in GaMnAs films by Hall effect

Sangyeop Lee, Hakjoon Lee, Taehee Yoo, Sanghoon Lee, X. Liu, J. K. Furdyna

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    3 Citations (Scopus)

    Abstract

    Magnetic anisotropy of ferromagnetic semiconductor GaMnAs film with a low Mn concentration grown on a (001) GaAs substrate was investigated by Hall effect measurements. The presence of domains with in-plane and out-of-plane easy axes was identified in the film by analyzing hysteresis loops observed via the Hall resistance measured in various geometries. Quantitative analysis of the planar Hall resistance showed that the fraction of the sample with magnetic domains having a dominant out-of-plane easy axis was about 6 times larger than the fraction corresponding to domains with easy axis in the sample plane.

    Original languageEnglish
    Article number17C706
    JournalJournal of Applied Physics
    Volume113
    Issue number17
    DOIs
    Publication statusPublished - 2013 May 7

    Bibliographical note

    Funding Information:
    This research was supported by the Converging Research Center Program through the Ministry of Education, Science and Technology (2012K001244), by the National Research Foundation of Korea (NRF) Grant funded by the Government of Korea (MEST) (No. 2010-0025880), and by the National Science Foundation Grant No. DMR10-05851.

    ASJC Scopus subject areas

    • General Physics and Astronomy

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