Zener Breakdown in Superlattices

The motion of a one-dimensional Bloch electron with mass m and charge —e in an external field F is governed by the Hamiltonian $$\hat H = - \frac{{{\hbar ^2}}}{{2m}}\frac{{{d^2}}}{{d{z^2}}} + U\left( z \right) + eFz;\quad U\left( {z + a} \right) = U\left(

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SOLID-STATE SCIENCES

141

Springer-Verlag Berlin Heidelberg GmbH Physics and Astronomy springeronline.com

ONLINE LIBRARY

Springer Series in

SOLID-STATE SCIENCES Series Editors: M. Cardona

P. Fulde

K. von Klitzing

R. Merlin

H.-J. Queisser

H. Stormer

The Springer Series in Solid-State Sciences consists of fundamental scientific books prepared by leading researchers in the field. They strive to communicate, in a systematic and comprehensive way, the basic principles as well as new developments in theoretical and experimental solid-state physics. 126 Physical Properties of Quasicrystals 127

128

129

130

131

132

133 134

Editor: Z.M. Stadnik Positron Annihilation in Semiconductors Defect Studies By R. Krause-Rehberg and H.S. Leipner Magneto-Optics Editors: S. Sugano and N. Kojima Computational Materials Science From Ab Initio to Monte Carlo Methods By K. Ohno, K. Esfarjani, and Y. Kawazoe Contact, Adhesion and Rupture of Elastic Solids ByD. Maugis Field Theories for Low-Dimensional Condensed Matter Systems Spin Systems and Strongly Correlated Electrons By G. Morandi, P. Sodano, A. Tagliacozzo, and V. Tognetti Vortices in Unconventional Superconductors and Superfluids Editors: R.P. Huebener, N. Schopohl, and G.E. Volovik The Quantum Hall Effect By D. Yoshioka Magnetism in the Solid State ByP.Mohn

Volumes 1-125 are listed at the end of the book.

135 Electrodynamics

136

137

138

139

140

141

142

of Magnetoactive Media By I. Vagner, B.I. Lembrikov, andP. Wyder Nanoscale Phase Separation and Colossal Magnetoresistance The Physics of Manganites and Related Compounds By E. Dagotto Quantum Transport in Submicron Devices A Theoretical Introduction By W. Magnus and W. Schoenmaker Phase Separation in Soft Matter Physics Micellar Solutions, Microemulsions, Critical Phenomena By P.K. Khabibullaev and A.A. Saidov Optical Response of Nanostructures Microscopic Nonlocal Theory ByK.Cho Fractal Concepts in Condensed Matter Physics By T. Nakayama and K. Yakubo Excitons in Low-Dimensional Semiconductors Theory, Numerical Methods, Applications By S. Glutsch Two-Dimensional Coulomb Liquids and Solids By Y. Monarkha and K. Kono

Stephan Glutsch

Excitons in Low-Dimensional Semiconductors Theory Numerical Methods Applications With 41 Figures

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Springer

Dr. Stephan Glutsch Friedrich -Schiller-Universitat Institut flir Festkiirpertheorie und Theoretische Optik Max-Wien-Platz 1 07743 Jena, Germany e-mail: [email protected]

Series Editors: Professor Dr., Dres. h. c. Manuel Cardona Professor Dr., Dres. h. c. Peter Fulde* Professor Dr., Dres. h. c. Klaus von Klitzing Professor Dr., Dres. h. c. Hans-Joachim Queisser Max-Planck-Institut flir Festkiirperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany • Max-Planck-Institut flir Physik komplexer Systeme, Niithnitzer Strasse 38 D-01187 Dresden, Germany

Professor Dr. Roberto Merlin Department of Physics, 5000 East University, University of Michigan Ann Arbor, MI 48109-1120, USA

Professor Dr. Horst StOrmer Dept. Phys. and Dept. App!. Physics, Columbia