Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 259, Issue 5, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.202100152
Keywords
chemical vapor transport; chiral magnets; Cu2OSeO3; noncentrosymmetric magnets; single crystals; X-ray diffraction
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Funding
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [107745057, 390814868]
- Projekt DEAL
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Cu2OSeO3 single crystals are grown using an optimized chemical vapor transport technique with SeCl4 as a transport agent, allowing selective production of large high-quality crystals. The method consistently produces Cu2OSeO3 crystals up to 8 x 7 x 4 mm in size within a transport duration of approximately three weeks. The crystals exhibit high quality and their absolute structures are fully determined by simple single-crystal X-ray diffraction, with enantiomeric crystals showing left- or right-handed chiralities. Magnetization and ferromagnetic resonance data confirm the previously reported magnetic phase diagram.
Cu2OSeO3 single crystals are grown with an optimized chemical vapor transport technique using SeCl4 as a transport agent (TA). The optimized growth method allows to selectively produce large high-quality single crystals. The method is shown to consistently produce Cu2OSeO3 crystals of maximum size 8 x 7 x 4 mm with a transport duration of around three weeks. It is found that this method, with SeCl4 as TA, is more efficient and simple compared with the commonly used growth techniques reported in literature with HCl gas as TA. The Cu2OSeO3 crystals have very high quality and their absolute structures are fully determined by simple single-crystal X-ray diffraction. Enantiomeric crystals with either left- or right-handed chiralities are observed. The magnetization and ferromagnetic resonance data show the same magnetic phase diagram as reported earlier.
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