Capacitor and electronic device including the same

An electronic device comprising:

• a transistor;
• and
• a capacitor electrically connected to the transistor, the capacitor comprising
• a first electrode,
• a second electrode facing the first electrode,
• a dielectric layer between the first electrode and the second electrode, the dielectric layer including a dielectric of a rutile phase, and
• an interface layer between the first electrode and the dielectric layer, the interface layer including a first interface layer adjacent to the first electrode and a second interface layer between the first interface layer and the dielectric layer,
• wherein the first interface layer includes a conductive metal oxide having a work function in a range of about 4.8 eV to about 6.0 eV,
• the second interface layer includes a metal oxide having a rutile-phase crystal structure, and
• a thickness of the second interface layer is smaller than a thickness of the first interface layer.