Current-driven phase-change optical gate switch using indium–tin-oxide heater

K Kato, M Kuwahara, H Kawashima… - Applied Physics …, 2017 - iopscience.iop.org
We proposed and fabricated a current-driven phase-change optical gate switch using a Ge 2
Sb 2 Te 5 (GST225) thin film, an indium–tin-oxide (ITO) heater, and a Si waveguide …

Thermal Transport in Chalcogenide‐Based Phase Change Materials: A Journey from Fundamental Physics to Device Engineering

K Aryana, CC Popescu, H Sun, K Aryana… - Advanced …, 2025 - Wiley Online Library
Advancements in nanofabrication processes have propelled nonvolatile phase change
materials (PCMs) beyond storage‐class applications. They are now making headway in …

Modeling of thermoelectric effects in phase change memory cells

A Faraclas, G Bakan, F Dirisaglik… - … on Electron Devices, 2014 - ieeexplore.ieee.org
Thermoelectric effects on phase change memory elements are computationally analyzed
through 2-D rotationally symmetric finite-element simulations of reset operation on a Ge 2 Sb …

High speed, high temperature electrical characterization of phase change materials: metastable phases, crystallization dynamics, and resistance drift

F Dirisaglik, G Bakan, Z Jurado, S Muneer, M Akbulut… - Nanoscale, 2015 - pubs.rsc.org
During the fast switching in Ge2Sb2Te5 phase change memory devices, both the
amorphous and fcc crystalline phases remain metastable beyond the fcc and hexagonal …

[HTML][HTML] Extracting the temperature distribution on a phase-change memory cell during crystallization

G Bakan, B Gerislioglu, F Dirisaglik, Z Jurado… - Journal of Applied …, 2016 - pubs.aip.org
Phase-change memory (PCM) devices are enabled by amorphization-and crystallization-
induced changes in the devices' electrical resistances. Amorphization is achieved by melting …

[HTML][HTML] Engineering thermal and electrical interface properties of phase change memory with monolayer MoS2

CM Neumann, KL Okabe, E Yalon, RW Grady… - Applied Physics …, 2019 - pubs.aip.org
Phase change memory (PCM) is an emerging data storage technology; however, its
programming is thermal in nature and typically not energy-efficient. Here, we reduce the …

[HTML][HTML] Understanding the switching mechanism of interfacial phase change memory

KL Okabe, A Sood, E Yalon, CM Neumann… - Journal of Applied …, 2019 - pubs.aip.org
Phase Change Memory (PCM) is a leading candidate for next generation data storage, but it
typically suffers from high switching (RESET) current density (20–30 MA/cm 2). Interfacial …

[HTML][HTML] High temperature electrical resistivity and Seebeck coefficient of Ge2Sb2Te5 thin films

L Adnane, F Dirisaglik, A Cywar, K Cil, Y Zhu… - Journal of Applied …, 2017 - pubs.aip.org
High-temperature characterization of the thermoelectric properties of chalcogenide Ge 2 Sb
2 Te 5 (GST) is critical for phase change memory devices, which utilize self-heating to …

Modeling of phase-change memory: Nucleation, growth, and amorphization dynamics during set and reset: Part I—Effective media approximation

Z Woods, A Gokirmak - IEEE Transactions on Electron Devices, 2017 - ieeexplore.ieee.org
We have constructed a framework that enables finite-element modeling of nucleation,
growth, and amorphization processes in phase-change memory devices using a single rate …

Metal-semiconductor transition in the supercooled liquid phase of the and GeTe compounds

M Cobelli, D Dragoni, S Caravati, M Bernasconi - Physical Review Materials, 2021 - APS
The Ge 2 Sb 2 Te 5 and GeTe compounds are of interest for applications in phase change
memories. In the reset process of the memory the crystal is rapidly brought above the …