Dear Pablo, if you have delocalized state then usually the spin polarization energy will be small. Check the "ElectronicTemperature" option. Most probably you smeared the electrons between the spin up and spin down levels which halfly occupies both states. Lowering the smearing can result in other occupation but if the delocalization is strong then you will have this smearing effect even at 10 K. If you set T= 0K, however, can lead to convergency problems because your system is "metallic".
Yours, Adam Gali ------------------------------------------------------------------------------- Dr. Gali Ádám Adam Gali, PhD Budapesti Műszaki és Department of Atomic Physics, Gazdaságtudományi Egyetem, Budapest University of Technology and Atomfizika Tanszék Economics Budapest, Budafoki út 8., 1111 Budafoki út 8., H-1111, Budapest, Hungary telefon: 463-1580 telephone: [36]-(1)-463-1580 fax: 463-4357 fax: [36]-(1)-463-4357 e-mail: [EMAIL PROTECTED] http://www.fat.bme.hu/homepages/galia/index.en.html -------------------------------------------------------------------------------