A plurality of embodiments for ReRAM devices and method of making are described. According to one embodiment, the ReRAM device includes a first electrode film formed on a substrate, a metal oxide film with oxygen vacancies formed on a first electrode film, a conformal TiAlC film, oxidized by diffused oxygen atoms from the metal oxide film, formed on the metal oxide film, and a second electrode film formed on the TiAlC film. According to another embodiment, the ReRAM device includes a pair of vertical metal oxide films, a pair of vertical conformal TiAlC films formed on the pair of vertical metal oxide films, the pair of vertical conformal TiAlC films oxidized by diffused oxygen atoms from the pair of vertical metal oxide films, and an electrode film formed between the pair of vertical conformal TiAlC films.