Title of article
Optical floating zone growth of high-quality Cu2MnAl single crystals
Author/Authors
Neubauer، نويسنده , , A. and Jonietz، نويسنده , , F. and Meven، نويسنده , , M. and Georgii، نويسنده , , R. and Brandl، نويسنده , , G. and Behr، نويسنده , , G. and Bِni، نويسنده , , P. and Pfleiderer، نويسنده , , C.، نويسنده ,
Pages
9
From page
66
To page
74
Abstract
We report the growth of large single-crystals of Cu2MnAl, a ferromagnetic Heusler compound suitable for polarizing neutron monochromators, by means of optical floating zone under ultra-high vacuum compatible conditions. Unlike Bridgman or Czochralsky grown Cu2MnAl, our floating zone grown single-crystals show highly reproducible magnetic properties and an excellent crystal quality with a narrow and homogeneous mosaic spread as examined by neutron diffraction. An investigation of the polarizing properties in neutron scattering suggests a high polarization efficiency, limited by the relatively small sample dimensions studied. Our study identifies optical floating zone under ultra-high vacuum compatible conditions as a highly reproducible method to grow high-quality single-crystals of Cu2MnAl.
Keywords
single crystal growth , Optical floating zone , Polarized neutron scattering , Polarizing monochromator , Mosaicity
Journal title
Astroparticle Physics
Record number
2019635
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