GeSbTe (germanium-antimony-tellurium or GST) is a phase-change material from the group of chalcogenide glasses used in rewritable optical discs and phase-change memory applications. Its recrystallization time is 20 nanoseconds, allowing bitrates of up to 35 Mbit/s to be written and direct overwrite capability up to … See more GeSbTe is a ternary compound of germanium, antimony, and tellurium, with composition GeTe-Sb2Te3. In the GeSbTe system, there is a pseudo-line as shown upon which most of the alloys lie. Moving down this … See more Threshold switching occurs when GeSbTe goes from a high resistive state to a conductive state at the threshold field of about 56 V/um. This can be seen from the current-voltage (IV) plot, where current is very low in the amorphous state at low voltage until … See more Another similar material is AgInSbTe. It offers higher linear density, but has lower overwrite cycles by 1-2 orders of magnitude. It is used in groove-only recording formats, often in rewritable CDs. AgInSbTe is known as a growth-dominated material … See more The unique characteristic that makes phase-change memory useful as a memory is the ability to effect a reversible phase change … See more Recently, much research has focused on the material analysis of the phase-change material in an attempt to explain the high speed phase change of GeSbTe. Using EXAFS, it was found that the most matching model for crystalline GeSbTe is a distorted rocksalt … See more WebMay 1, 2024 · In this study, we present an all-optical reflection modulator for the 2 µm communication band exploiting a nanogear-array metasurface and phase-change-material G e 2 S b 2 T e 5 (GST).
High Q Resonant Graphene Absorber with Lossless Phase Change Material ...
http://www.nano-fab.com/index.php/phase-change-materials-gst/#:~:text=Phase%20Change%20Materials%20%28GST%29%20Ge2Sb2Te5%20%28GST%29%20is%20a,melting%20temperature%20%28650C%29%20and%20the%20rapidly%20quenching%20it. WebGraphene absorbers have attracted lots of interest in recent years. They provide huge potential for applications such as photodetectors, modulators, and thermal emitters. In this letter, we design a high-quality (Q) factor resonant graphene absorber based on the phase change material Sb2S3. In the proposed structure, a refractive index grating is formed … nyu sps ms in financial planning
Andrew Sarangan : University of Dayton, Ohio
WebPhase change materials Computational electromagnetics Courses Developed/Taught Nano Fabrication EOP533/ECE580 Optical Thin Films EOP532 Integrated Optics EOP604/ECE674 Quantum Electronics EOP626/ECE676 Electro-Optic Devices and Systems EOP506/ECE573 Advanced Nanotechnology EGR411 Principles of … WebJan 30, 2024 · Phase-change materials (PCMs)-based random access memory (PCRAM) is a leading NVM candidate with successful stand-alone memory products such as Intel Optane. By improving its thermal stability ... WebMar 3, 2024 · Phase change materials (PCMs) such as GST provide a solution in that it exhibits drastic contrast in refractive index between the two non-volatile … magnum polisher