UTEM SICM GaP pinpoint mode HACrystal PinPointMode Subhajjit LMF OrganicCompound Vanadate TPU SmalScan HDD Chromium BiFeO3 align Hair ScratchMode University_of_Regensburg sputter Multiferroic_materials Forevision P3HT Chloroform Polymer STO thermal_property DOE Alloy Water biocompatible Ferrite Microchannel HexagonalBoronNitride semifluorinated alkane