Sputter‐grown GeTe/Sb ₂ Te ₃ superlattice interfacial phase change memory for low power and multi‐level‐cell operation

Interfacial phase-change memory.

Phase-change memory technology relies on the electrical and optical properties of certain materials changing substantially when the atomic structure of the material is altered by heating or some other excitation process. For example, switching the composite Ge(2)Sb(2)Te(5) (GST) alloy from its covalently bonded amorphous phase to its resonantly bonded metastable cubic crystalline phase decrease...

Improved phase-change characteristics of Zn-doped amorphous Sb7Te3 films for high- speed and low-power phase change memory

Spin-storage mechanism in interfacial phase-change memory (iPCM)

Interfacial phase change memory (iPCM) is magnetic sensitive at room temperature while the alloy with same composition is not. The unique property has been thought to be related to the topological insulating property. We discuss the magnetic properties on the point of view of the spatial inversion symmetry of iPCM structures and ferroelectricity of GeTe layers sandwiched by topological insulati...

Compositionally matched nitrogen-doped Ge2Sb2Te5/Ge2Sb2Te5 superlattice-like structures for phase change random access memory

superlattice-like structures for phase change random access memory Chun Chia Tan, Luping Shi, Rong Zhao, Qiang Guo, Yi Li, Yi Yang, Tow Chong Chong, Jonathan A. Malen, Wee-Liat Ong, Tuviah E. Schlesinger, and James A. Bain Data Storage Institute, A*STAR (Agency for Science, Technology and Research), DSI Building, 5 Engineering Drive 1, Singapore 117608 Department of Electrical and Computer Engi...

A survey of power management techniques for phase change memory

The demands of larger memory capacity in high-performance computing systems have motivated the researchers to explore alternatives of DRAM (dynamic random access memory). Since PCM (phase change memory) provides high-density, good scalability and non-volatile data storage, it has received significant amount of attention in recent years. A crucial bottleneck in wide-spread adoption of PCM, howev...