Results 61 to 70 of about 3,359,345 (195)

Modeling Heterogeneous Melting in Phase Change Memory Devices

, 2018
We present thermodynamic crystallization and melting models and calculate phase change velocities in $Ge_2 Sb_2 Te_5$ based on kinetic and thermodynamic parameters.
Gokirmak, Ali, Scoggin, Jake, Silva, Helena, Woods, Zachary   +3 more
core   +1 more source

Reconfigurable infrared hyperbolic metasurfaces using phase change materials

Nature Communications, 2018
Here, the authors demonstrate that the dispersion of hyperbolic phonon polaritons can be controlled using the permittivity changes inherent in the different phases of phase change materials.
T. G. Folland, A. Fali, S. T. White, J. R. Matson, S. Liu, N. A. Aghamiri, J. H. Edgar, R. F. Haglund, Y. Abate, J. D. Caldwell   +9 more
doaj   +1 more source

Sub-nanometre resolution of atomic motion during electronic excitation in phase-change materials

, 2016
Phase-change materials based on Ge-Sb-Te alloys are widely used in industrial applications such as nonvolatile memories, but reaction pathways for crystalline-to-amorphous phase-change on picosecond timescales remain unknown. Femtosecond laser excitation
Bragaglia, Valeria, Brewe, Dale, Calarco, Raffaella, Fons, Paul, Giussani, Alessandro, Hase, Muneaki, Katayama, Tetsuo, Kolobov, Alexander V., Makino, Kotaro, Mitrofanov, Kirill V., Ogawa, Kanade, Riechert, Henning, Sato, Takahiro, Shimada, Toru, Terashima, Ryo, Togashi, Tadashi, Tominaga, Junji, Wall, Simon, Yabashi, Makina   +18 more
core   +1 more source

Passive cooling of buildings with phase change materials using whole-building energy simulation tools: A review [PDF]

, 2017
Buildings contribute to climate change by consuming a considerable amount of energy to provide thermal comfort for occupants. Cooling energy demands are expected to increase substantially in the world. On this basis, technologies and techniques providing
Cabeza, Luisa F., Gracia Cuesta, Alvaro de, Saffari Tabalvandani, Mohammad, Ushak, Svetlana   +3 more
core   +2 more sources

Understanding amorphous phase-change materials from the viewpoint of Maxwell rigidity

, 2009
Phase-change materials (PCMs) are the subject of considerable interest because they have been recognized as potential active layers for next-generation non-volatile memory devices, known as Phase Change Random Access Memories (PRAMs).
C. Bichara, C. Otjacques, D. Selvanathan, J. C. Maxwell, J. L. Lagrange, J.-Y. Raty, M. Micoulaut, P. E. Blöechl   +7 more
core   +3 more sources

Monatomic phase change memory

, 2018
Phase change memory has been developed into a mature technology capable of storing information in a fast and non-volatile way, with potential for neuromorphic computing applications.
Cojocaru-Mirédin, Oana, Gallo, Manuel Le, Giannopoulos, Iason, Jonnalagadda, Vara Prasad, Kersting, Benedikt, Mazzarello, Riccardo, Ronneberger, Ider, Salinga, Martin, Sebastian, Abu, Vu, Xuan Thang   +9 more
core   +1 more source

Hierarchical macro-nanoporous metals for leakage-free high-thermal conductivity shape-stabilized phase change materials

, 2020
Impregnation of Phase Change Materials (PCMs) into a porous medium is a promising way to stabilize their shape and improve thermal conductivity which are essential for thermal energy storage and thermal management of small-size applications, such as ...
Dauvergne, Jean-Luc, Ding, Yulong, Faik, Abdessamad, Giacomello, Alberto, Grosu, Yaroslav, Meloni, Simone, Nikulin, Artem, Palomo, Elena, Zhao, Yanqi   +8 more
core   +1 more source

Ab Initio Study of Novel Phase‐Change Heterostructures

Advanced Science
Neuromorphic devices constitute a novel approach to computing that takes inspiration from the brain to unify the processing and storage units. Memories based on phase‐change materials (PCMs) are potential candidates for such devices due to their non ...
Riccardo Piombo, Simone Ritarossi, Riccardo Mazzarello   +2 more
doaj   +1 more source

Application of phase-change materials in memory taxonomy

Science and Technology of Advanced Materials, 2017
Phase-change materials are suitable for data storage because they exhibit reversible transitions between crystalline and amorphous states that have distinguishable electrical and optical properties.
Lei Wang, Liang Tu, Jing Wen
doaj   +1 more source

Phase change materials for building construction: An overview of nano-/micro-encapsulation

Nanotechnology Reviews, 2020
Buildings contribute to 40% of total global energy consumption, which is responsible to 38% of greenhouse gas emissions. It is critical to enhance the energy efficiency of buildings to mitigate global warming.
Sivanathan Amende, Dou Qingqing, Wang Yuxuan, Li Yunfeng, Corker Jorge, Zhou Yonghui, Fan Mizi   +6 more
doaj   +1 more source