Unconventional vapor–liquid–solid mechanism of ultra-long Ba6Mn24O48 whiskers growth from chloride fluxes†
Abstract
Isothermal growth in evaporating salt fluxes allowed the reproducible and high-yield synthesis of unique submicron-thick and millimeter-long manganese-rich Ba6Mn24O48 whiskers with a composite tunnel crystal structure. The crystals morphology and growth conditions suggest that the whiskers proliferate by an unusual mechanism based on a transport reaction of MnCl2 vapor, its