Real Madrid had temporarily claimed top spot on Saturday after a 2-1 win at Alaves but Barca's victory put them ahead on goal difference.
Atletico had enjoyed the best of the chances in an engrossing contest but remain winless in 19 LaLiga games against the Catalans.
Ernesto Valverdes's side were indebted to goalkeeper Marc-Andre ter Stegen for two breath-taking saves in the first half.
Source : Afghan Voice Agency(AVA)