Sökning: "topological insulators"

Visar resultat 21 - 25 av 25 avhandlingar innehållade orden topological insulators.

1. 21. Charge-Spin Conversion and Electronic Transport in Two-Dimensional Materials and van der Waals Heterostructures

   Författare :Anamul Md Hoque; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Spin-orbit coupling; Nanoribbons; Nanotransistor; Graphene; Chemical vapor deposition; Spintronics; Charge-spin conversion; Two-dimensional materials; Proximity effect; van der Waals heterostructure;

   Sammanfattning : Applications related to artificial intelligence (AI), 5G communication, cloud computing, Internet of Things (IoT) will necessitate wide range of data collection, communication and processing. Current charge-based technology using conventional materials suffers adverse effects with down-scaling the device size and has limited efficiency in meeting the future demands for computation and data storage. LÄS MER

3. 22. Electronic transitions and correlation effects : From pure elements to complex materials

   Författare :Johan Jönsson; Igor A. Abrikosov; Marcus Ekholm; Sergei Dudarev; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electronic transition; solid state physics; condensed matter physics; correlation effects;

   Sammanfattning : Macroscopic properties of real materials, such as conductivity, magneticproperties, crystal structure parameters, etc. are closely related or evendetermined by the configuration of their electrons, characterized by electronicstructure. By changing the conditions, e.g, pressure, temperature, magnetic/electric field, chemical doping, etc. LÄS MER

4. 23. Quantum Holonomy for Many-Body Systems and Quantum Computation

   Författare :Vahid Azimi Mousolou; Erik Sjöqvist; Rosario Fazio; Linnéuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Quantum holonomy; geometric phase; quantum correlations; quantum phase transitions; quantum computation; Natural Science; Naturvetenskap; Physics; Fysik;

   Sammanfattning : The research of this Ph. D. thesis is in the field of Quantum Computation and Quantum Information. A key problem in this field is the fragile nature of quantum states. LÄS MER

5. 24. Interacting Dirac Matter

   Författare :Saikat Banerjee; Alexander V. Balatsky; Jens Paaske; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dirac; superconductor; magnon; interaction; Fermi liquid theory; renormalization; Fysik; Physics;

   Sammanfattning : The discovery of graphene in 2004 has led to a surge of activities focused on the theoretical and experimental studies of materials hosting linearly dispersive quasiparticles during the last decade. Rapid expansion in the list of materials having similar properties to graphene has led to the emergence of a new class of materials known as the Dirac materials. LÄS MER

7. 25. Adventures of III-V Semiconductor Surfaces

   Författare :Sandra Benter; NanoLund: Centre for Nanoscience; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; III-V; semiconductor surfaces; Bismuth; InAs; GaAs; droplets; STM; XPS; XPEEM; ARPES; Fysicumarkivet A:2023:Benter;

   Sammanfattning : Tailoring the surface composition and morphology of materials to enable new electronic devices is important for a wide range of applications such as quantum computing or spintronics. A fundamental understanding of the changes induced in the surface during different process steps can help to establish new synthesis routes as well as devices. LÄS MER