Essays about: "Superlattice"

Showing result 1 - 5 of 10 essays containing the word Superlattice.

1. 1. In-situ Growth of Sn-seeded GaAs and GaSb Nanowire Heterostructures

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Azemina Kraina; [2023]
   Keywords : nanowire; heterostructure; ETEM; MOCVD; TEM; in-situ; Sn; GaAs; GaSb; materials chemistry; Technology and Engineering; Chemistry;

   Abstract : One of the ways to utilize III-V nanowires, is to make use of the possibility to combine materials and create heterostructures which allows for creating material combinations with new properties. A special interest can be taken into Sb-containing nanowires due to the high electron mobility, however there has been reported difficulties with switching to other materials because of a 'memory effect' where Sb lingers in the system and nanowire. READ MORE

3. 2. Hydrogen Absorption in Metal Hydrides : Transmission of light in relation to hydrogen concentration and site occupancy of ultrathin vanadium films

   University essay from Uppsala universitet/Tillämpad kärnfysik

   Author : David Sörme; [2022]
   Keywords : metal hydrides; iron-vanadium superlattice; hydrogen; hydrogen site occupancy; hydrogen concentrationm; hydrogen storage;

   Abstract : In this study the effect of hydrogenation on the optical properties in the wavelength range 400-1023 nm of an ultrathin iron-vanadium superlattice is investigated. Specifically, mea- surements of transmission are performed under different states of hydrogenation, along with measurements of absolute hydrogen concentration and hydrogen site occupancy. READ MORE

4. 3. Investigation of the Magnetic- and Electron Transport Properties of Fe/MgO Superlattices

   University essay from Uppsala universitet/Materialfysik

   Author : Ali Rostom; David Holmgren; [2022]
   Keywords : Fe MgO superlatice; interlayer exchange coupling; Van der Pauw; electronic transport; magnetic field; resistive properties; 3D memory storage;

   Abstract : Anti-ferromagnetic interlayer exchange coupling between iron layers in Fe/MgO superlatices have recently been of interest among researchers for its potential application in 3D memory storage in computers (hard drives) and in the research field of spintronics. Thinfilms and bi-layers between the 10-100 ångström range in thicknesses were analyzed for its resistive properties during different conditions. READ MORE

5. 4. Investigating hydrogen absorption in a Fe/V superlattice using OSFOLD

   University essay from Uppsala universitet/Tillämpad kärnfysik

   Author : David Sörme; [2022]
   Keywords : ;

   Abstract : .... READ MORE

6. 5. Topological Photonic Lattices

   University essay from KTH/Tillämpad fysik

   Author : Zesheng Xu; [2022]
   Keywords : Topological photonics; Integrated photonics; Condensed matter physics physics; Optics; Topologisk fotonik; integrerad fotonik; fysik för kondenserad materia; Optik;

   Abstract : Topological Photonics is a rapidly growing field which explores the ideas of topological invariants adapted from condensed matter physics to optical systems. Thanks to integrated photonics platforms, the evolution of light in nanoscale photonic lattices can enable direct measurement of topological properties of the band-structure. READ MORE