Sources for research on Bandgap Engineered memory devices in electrical engineering

hi,

I am a student for an electrical engineering and i have to find some articles or any other information source about "Bandgap Engineered memory devices" for my project,

I searched with google and "google scholar" but i didn't find.

if someone know about any other information source and let me know it'll great

thanks a lot for your help,

eli.