Epitaxial growth of ferromagnetic Ni2MnIn on (001) InAs

The ferromagnetic Heusler alloy Ni2MnIn has been grown on InAs (001) by mol ecular-beam epitaxy. In situ reflection high-energy electron diffraction, e x situ x-ray diffraction, Rutherford backscattering spectrometry, and trans mission electron microscopy indicate the high-quality epitaxial growth of N i2MnIn with the B2 crystal structure on InAs (001). Superconducting quantum interference device magnetometry shows that the Ni2MnIn film is ferromagne tic with a Curie temperature similar to 170 K. (C) 2001 American Institute of Physics.