Electronic structure of uracil-like nucleobases adsorbed on Si(001): uracil, thymine and 5-fluorouracil Elena Molteni, Giovanni Onida and Giancarlo Cappellini Eur. Phys. J. B, 89 4 (2016) 98 Published online: 13 April 2016 DOI: 10.1140/epjb/e2016-70011-1