Data for Growth of MnWO4 Nanowires on W(110) by High- Temperature Oxygen-Assisted Molecular Beam Epitaxy

Dataset for the growth of synthetic hübnerite (MnWO4) by high-temperature oxygen-assisted molecular beam epitaxy on W(110). The hübnerite nanowires have widths of hundreds of nanometers, heights of tens of nanometers and lengths in the range of millimeters. The growth was followed in real time by low-energy electron microscopy (LEEM). The nanowires are characterized in situ by low-energy electron microscopy, x-ray absorption and x-ray photoelectron spectroscopy in photoemission microscopy, as well as ex situ by atomic force microscopy, optical microscopy and Raman spectroscopy. Hübnerite can be grown on W(110) by dosing only manganese in a molecular oxygen environment, likely due to the formation of highly mobile WOx species with diffusion lengths of the order of hundreds of micrometers. The dataset comprises the original LEEM data for the growth movie, the PEEM data for the Mn, the O XAS spectra and the W XPS spectra, and the Raman spectrum and the AFM image.