Optical Floating Zone Growth of High-Quality {{Cu2MnAl}} Single Crystals

Neubauer, A.; Jonietz, F.; Meven, M.; Georgii, R.; Brandl, G.; Behr, G.; B̈oni, P.; Pfleiderer, C.

doi:10.1016/j.nima.2012.06.012

2012_Neubauer_NuclInstrumMethodsPhysResA

Document type:: Zeitschriftenaufsatz
Author(s):: Neubauer, A.; Jonietz, F.; Meven, M.; Georgii, R.; Brandl, G.; Behr, G.; B̈oni, P.; Pfleiderer, C.
Title:: Optical Floating Zone Growth of High-Quality {{Cu2MnAl}} Single Crystals
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. «
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 p... »
Keywords:: Single crystal growth,Mosaicity,Optical floating zone,Polarized neutron scattering,Polarizing monochromator
Journal title:: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Year:: 2012
Journal volume:: 688
Month:: oct
Pages contribution:: 66
Fulltext / DOI:: doi:10.1016/j.nima.2012.06.012
Print-ISSN:: 0168-9002
BibTeX

Occurrences:

mediaTUM Gesamtbestand Hochschulbibliographie 2012 Fakultäten Physik Fachgebiet Magnetische Materialien (Prof. Pfleiderer)

mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Natural Sciences Departments Physics Lehrstuhl für Experimentalphysik zur Topologie korrelierter Systeme (Prof. Pfleiderer)