Jeong, Doo Seok Thomas, Reji Katiyar, R. S. Scott, J. F. Kohlstedt, H. Petraru, A. Hwang, Cheol Seong 2024-01-20T14:31:38Z 2024-01-20T14:31:38Z 2021-09-05 2012-07 0034-4885 https://pubs.kist.re.kr/handle/201004/129092 The resistance switching behaviour of several materials has recently attracted considerable attention for its application in non-volatile memory (NVM) devices, popularly described as resistive random access memories (RRAMs). RRAM is a type of NVM that uses a material(s) that changes the resistance when a voltage is applied. Resistive switching phenomena have been observed in many oxides: (i) binary transition metal oxides (TMOs), e. g. TiO2, Cr2O3, FeOx and NiO; (ii) perovskite-type complex TMOs that are variously functional, paraelectric, ferroelectric, multiferroic and magnetic, e. g. (Ba,Sr)TiO3, Pb(ZrxTi1-x)O-3, BiFeO3 and PrxCa1-xMnO3; (iii) large band gap high-k dielectrics, e. g. Al2O3 and Gd2O3; (iv) graphene oxides. In the non-oxide category, higher chalcogenides are front runners, e. g. In2Se3 and In2Te3. Hence, the number of materials showing this technologically interesting behaviour for information storage is enormous. Resistive switching in these materials can form the basis for the next generation of NVM, i. e. RRAM, when current semiconductor memory technology reaches its limit in terms of density. RRAMs may be the high-density and low-cost NVMs of the future. A review on this topic is of importance to focus concentration on the most promising materials to accelerate application into the semiconductor industry. This review is a small effort to realize the ambitious goal of RRAMs. Its basic focus is on resistive switching in various materials with particular emphasis on binary TMOs. It also addresses the current understanding of resistive switching behaviour. Moreover, a brief comparison between RRAMs and memristors is included. The review ends with the current status of RRAMs in terms of stability, scalability and switching speed, which are three important aspects of integration onto semiconductors. English IOP PUBLISHING LTD RANDOM-ACCESS MEMORY NONSTOICHIOMETRIC TITANIUM-DIOXIDE METAL-INSULATOR-TRANSITION NONVOLATILE MEMORY THIN-FILMS NEGATIVE-RESISTANCE DEFECT STRUCTURE ELECTRICAL-CONDUCTIVITY OXYGEN VACANCIES ALUMINUM-OXIDE Emerging memories: resistive switching mechanisms and current status Article 10.1088/0034-4885/75/7/076502 1 REPORTS ON PROGRESS IN PHYSICS, v.75, no.7 REPORTS ON PROGRESS IN PHYSICS 75 7 scie scopus 000305907700003 2-s2.0-84863507287 Physics, Multidisciplinary Physics Review RANDOM-ACCESS MEMORY NONSTOICHIOMETRIC TITANIUM-DIOXIDE METAL-INSULATOR-TRANSITION NONVOLATILE MEMORY THIN-FILMS NEGATIVE-RESISTANCE DEFECT STRUCTURE ELECTRICAL-CONDUCTIVITY OXYGEN VACANCIES ALUMINUM-OXIDE resistive switching transition metal oxide ferroelectric electrochemistry defect chemistry