Active hyperbolic metamaterials: progress, materials and design
L Lu, RE Simpson, SK Valiyaveedu - Journal of Optics, 2018 - iopscience.iop.org
Hyperbolic metamaterials (HMMs) are a special class of metamaterials that exhibit a
hyperbolic dispersion relation. Hyperbolic dispersion is rarely observed in natural materials …
hyperbolic dispersion relation. Hyperbolic dispersion is rarely observed in natural materials …
Structural transition and enhanced phase transition properties of Se doped Ge2Sb2Te5 alloys
EM Vinod, K Ramesh, KS Sangunni - Scientific reports, 2015 - nature.com
Abstract Amorphous Ge2Sb2Te5 (GST) alloy, upon heating crystallize to a metastable NaCl
structure around 150° C and then to a stable hexagonal structure at high temperatures (≥ …
structure around 150° C and then to a stable hexagonal structure at high temperatures (≥ …
Inter-diffusion of plasmonic metals and phase change materials
This work investigates the diffusion of metal atoms into phase change chalcogenides, which
is problematic because it can destroy resonances in photonic devices. Interfaces between …
is problematic because it can destroy resonances in photonic devices. Interfaces between …
Structural changes in doped Ge2Sb2Te5 thin films studied by Raman spectroscopy
In this study, we investigated Ge2Sb2Te5 (GST225) amorphous thin films doped with Bi, Sn
and In, using Raman scattering spectroscopy, to obtain information about structural changes …
and In, using Raman scattering spectroscopy, to obtain information about structural changes …
Direct hexagonal transition of amorphous (Ge2Sb2Te5) 0.9 Se0. 1 thin films
Ge 2 Sb 2 Te 5 (GST) is well known for its phase change properties and applications in
memory and data storage. Efforts are being made to improve its thermal stability and …
memory and data storage. Efforts are being made to improve its thermal stability and …
Spectroscopic study of nitrogen incorporation in Ge, Sb, and Te elemental systems: A step toward the understanding of nitrogen effect in phase-change materials
L Prazakova, E Nolot, E Martinez, D Rouchon… - Journal of Applied …, 2022 - pubs.aip.org
Nitrogen doping in chalcogenide materials represents a promising way for the improvement
of material properties. Indeed, N doping in GeSbTe phase-change alloys have …
of material properties. Indeed, N doping in GeSbTe phase-change alloys have …
Fabrication of Ge2Sb2Te5 crystal micro/nanostructures through single-shot Gaussian-shape femtosecond laser pulse irradiation
Femtosecond (fs) laser–thin film interaction is one of the most practical methods for
fabricating functional nanostructures. However, the details of the interaction mechanism …
fabricating functional nanostructures. However, the details of the interaction mechanism …
Microstructure and crystallization kinetics of Ge2Sb2Te5–Sn phase change materials
Q Yin, L Chen - Journal of Materials Science: Materials in Electronics, 2018 - Springer
In this paper, the effects of Sn doping on the microstructure and electrical properties of
amorphous and crystalline Ge 2 Sb 2 Te 5 thin films are reported. The thin films bonding …
amorphous and crystalline Ge 2 Sb 2 Te 5 thin films are reported. The thin films bonding …
Chemical states and optical properties of thermally evaporated Ge–Te and Ge–Sb–Te amorphous thin films
Thin amorphous films of Ge22Sb22Te56 and Ge50Te50 have been prepared from their
respective polycrystalline bulk on glass substrates by thermal evaporation technique. The …
respective polycrystalline bulk on glass substrates by thermal evaporation technique. The …
[PDF][PDF] Crystallization mechanism and kinetic parameters in Ge2Sb2Te5 thin films for the phase change memory application
A Sherchenkov, S Kozyukhin, A Babich… - Chalcogenide …, 2018 - chalcogen.ro
Currently active investigations of phase change memory (PCM) are carried out. PCM is
considered to be one of the most promising candidates for the next generation of memories …
considered to be one of the most promising candidates for the next generation of memories …