Formation and Rupture of the Nanosized Metal Filament inside Oxide   Matrix
  The paper presents a model of the electrically actuated formation and rupture of the nanosized metal filament inside oxide matrix. NiO oxide is used as an example for this model of ReRAM operation. 
G. B. Stefanovich, M. J. Lee, B. S. Kang, S.-E. Ahn, K. H. Kim, C. B.   Lee, C.J. Kim, and Y.S. Park
cond-mat.mtrl-sci