**Thermodynamics of ABO3-Type Perovskite Surfaces**

Eugene Heifets1, Eugene A. Kotomin1,2, Yuri A. Mastrikov2, Sergej Piskunov3 and Joachim Maier1 *1Max Planck Institute for Solid State Research, Stuttgart, 2Institute of Solid State Physics, University of Latvia, Riga, 3Department of Computer Science, University of Latvia, Riga, 1Germany 2,3Latvia* 
