期刊
JOURNAL OF APPLIED PHYSICS
卷 88, 期 12, 页码 7357-7359出版社
AMER INST PHYSICS
DOI: 10.1063/1.1326461
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Heusler alloy Ni2MnGa thin films have been grown pseudomorphically on a relaxed NiGa interlayer on GaAs(001) by molecular-beam epitaxy. In situ reflection high-energy electron diffraction patterns, ex situ x-ray diffraction, and cross-sectional view transmission electron microscopy electron diffraction patterns confirm the single-crystal growth of Ni2MnGa. The films grow pseudomorphically on the relaxed NiGa interlayer with a tetragonal structure (a=b=5.79 Angstrom and c=6.07 Angstrom). Magnetic measurements using vibrating sample and superconducting quantum interference device magnetometers reveal Ni2MnGa to have an in-plane easy axis and a Curie temperature similar to 350 K. (C) 2000 American Institute of Physics. [S0021- 8979(01)02301-5].
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