ABSTRACT

This chapter is dedicated to nonvolatile resistive switching mem-

ories RRAMs. RRAM, built as MIM capacitor-like structure where

the insulator layer (I), is made of one of two kinds of materials,

transition metal oxides or solid-state electrolytes. Progress in

materials and device structures of RRAMs is reviewed with certain

emphasis on physical mechanisms for resistive switching and also

electronic conduction in the low resistance state for different

insulators and metal electrode materials. Basic nonvolatile memory

characteristics for RRAMs, including switching voltage, endurance

and scalability, are discussed.