Electrode Electronics molecular_beam Potential Steps Aluminium_Oxide light_emission STO HOPG Biology Film LithiumNiobate Adhesive medical GalliumPhosphide Solution alkanes Calcium Magnetostrictive SThM GaN BaTiO3 Indium_tin_oxide Lateral CrossSection Chungnam_National_University SKPM Croatia Hexylthiophene DeflectionOptics layers Gallium PhthalocyaninePraseodymium biocompatible MESA structure