Local Density Theory of Polarizability (eBook)

Gerald D. Mahan, K.R. Subbaswamy (Autoren)

eBook Download: PDF

2013
Springer US (Verlag)
978-1-4899-2486-5 (ISBN)

Infos

During the past decade the theoretical physics community has learned how to evaluate accurately polarizabilities and susceptibilities for many-electron systems such as atoms, solids, and liquids. The most accurate numerical technique employs a method often called the Time-Dependent Local Density Approximation, which is abbreviated TDLDA. The present volume is a review of recent research on the theory of po- larizabilities and susceptibilities. Both authors have been doing these cal- culations. However, this review surveys the entire field, summarizing the research of many contributors. The application of an external field, either ac or de, will induce a dipole moment which can be calculated and compared with experiment. For mod- erately strong fields, both linear and nonlinear processes contribute to the moment. We cover topics such as polarizability, hyperpolarizability, pho- toionization, phonons, and piezoelectricity. Density functional theory in the Local Density Approximation (LDA) has been shown to be a very accurate method for calculating ground state prop- erties of electronic system. For static external fields, the induced moments are properties of the ground state. Then the calculation of the polarizability * is very accurate. For ac fields, the moment is not part of the ground state. However, the TDLDA methods are still very accurate.

Produkt-Details

• Erscheint lt. Verlag: 29.6.2013
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Chemie ► Analytische Chemie
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik
• Themenwelt: Technik ► Maschinenbau
• ISBN-10: 1-4899-2486-8 / 1489924868
• ISBN-13: 978-1-4899-2486-5 / 9781489924865