Fig. 1. Resistance vs. temperature of GT/ZS nanocomposite multilayer films.

Fig. 2. Failure time vs. 1/(k_BT) GT/ZS nanocomposite multilayer films.

Fig. 3. The high-resolution transmission electron microscopy images (a) (b) and selected area electron diffraction diagrams (c) (d) of section for [GT(7 nm)/ZS(3 nm)]₅ multilayer composite film: (a), (c) Amorphous; (b), (d) crystalline.

Fig. 4. (a) The cross section diagram of PCM devices cell; the curves of (b) I-V, (c) R-V, (d) cycling performance for PCM device based on [GT(7 nm)/ZS(3 nm)]₅ multilayer composite film.