Roman Leitsmann Bücher

Die Untersuchung von Hetero- und Nanostrukturen ionischer Materialien erfolgt durch parameterfreie Pseudopotentialrechnungen in der Dichtefunktionaltheorie. Im Fokus steht das Modellsystem aus PbTe und CdTe, wobei vier Superzellen-Modelle zur Beschreibung polarer Grenzflächen entwickelt werden. Diese Modelle ermöglichen die Analyse interner elektrostatischer Felder, die die elektronischen Eigenschaften und Grenzflächenbandstrukturen erheblich beeinflussen. Zudem werden kolloidale Quantenpunkte und in CdTe eingebettete PbTe QDs betrachtet, die unterschiedliche Grenzflächen aufweisen und einen Quantum-Con fined-Stark-Effekt erzeugen.

An overview of the latest computational materials science methods on an atomic scale. The authors present the physical and mathematical background in sufficient detail for this highly current and important topic, but without unnecessary complications. They focus on approaches with industrial relevance, covering real-life applications taken from concrete projects that range from tribology modeling to performance optimization of integrated circuits. Following an introduction to the fundamentals, the book describes the most relevant approaches, covering such classical simulation methods as simple and reactive force field methods, as well as highly accurate quantum-mechanical methods ranging from density-functional theory to Hartree-Fock and beyond. A review of the increasingly important multiscale approaches rounds off this section. The last section demonstrates and illustrates the capabilities of the methods previously described using recent real-life examples of industrial applications. As a result, readers gain a heightened user awareness, since the authors clearly state the conditions of applicability for the respective modeling methods so as to avoid fatal mistakes.