$P-V$ criticality of AdS black hole in the   Einstein-Maxwell-power-Yang-Mills gravity
  We study the $P-V$ critical behaivor of N-dimensional AdS black holes in Einstein-Maxwell-power-Yang-Mills gravity. Our results show the existence of the Van der Waals like small-large black hole phase transitions when taking some special values of charges of the Maxwell and Yang-Mills (YM) fields. Further to calculate the critical exponents of the black holes at the critical point, we find that they are the same as those in the Van der Waals liquid-gas system. 
Ming Zhang, Zhan-Ying Yang, De-Cheng Zou, Wei Xu, Rui-Hong Yue
hep-th