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Download PDF by O. Madelung, A. B. Lidiard, J. M. Stevels, E. Darmois: Electrical Conductivity II / Elektrische Leitungsphänomene

By O. Madelung, A. B. Lidiard, J. M. Stevels, E. Darmois

ISBN-10: 3642458599

ISBN-13: 9783642458590

ISBN-10: 3642458602

ISBN-13: 9783642458606

Sect. 1. 247 we've already said that the topic of ionic conductivity should be thoroughly considered as one a part of the broader learn of imperfections, and it's because of the coherence and cohesion of this wider topic that ionic conductors collect their curiosity [4J. hence the information of cellular interstitial atoms and vacant lattice websites are correct to quite a lot of phenomena; for instance diffusion in solidsl, chemical reactions among solids and among asolid and agas (e. g. tarnish three ing reactions) 2, and annealing of radiation harm . There are, after all, imper fections equivalent to dislocations whose homes can't be studied to any nice quantity via ionic conductivity measurements. but the lifestyles of fees at the ions and the absence of digital conduction allows the professional perties and focus of the easy localised lattice defects to be studied with larger simple task and extra directness than is feasible in, say, metals. this can be precise of the unique improvement of the speculation of lattice defects by way of FRENKEL [2J, SCHOTTKY [3J, [5J and WAGNER [5J, and can be real this present day. examples should be pointed out. first of all the diffusion of impurity atoms in met als might occasionally contain the formation of rather sturdy pairs shaped from an impurity atom and a vacan cy [6]. In NaCl (an ionic conductor), such pairs are comfortably shaped among a 2 Na+ emptiness and a substitutionally dissolved multivalent impurity ion, e. g.

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Extra info for Electrical Conductivity II / Elektrische Leitungsphänomene II

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15. 35 Die Dichteverteilung der Elektronen und Löcher. 6) für mn das geometrische Mittel der drei scheinbaren Massen mj, m; und mt einzusetzen. Besitzt ferner das betrachtete Band mehrere Minima bei verschiedenen k- Werten (Beispiel Ge oder Si, vgl. Ziff. 6) noch mit der Zahl dieser Minima zu multiplizieren. 7) wo jetzt m p die scheinbare Masse der Löcher und E v die Energie des oberen Randes des Valenzbandes ist. 8) wo nst die Störstellendichte und E st die energetische Lage ihrer Terme bedeutet.

FULLER: Phys. Rev. 86, 136 (1952). - W. C. DUNLAP U. D. E. BROWN: Phys. Rev. 86, 417 (1952). - C. S. FULLER, J. D. STRUTHERS, J. A. DrrZENBERGER u. K. B. VVOLFSTIRN: Phys. Rev. 93,1182 (1954). - W. C. DUNLAP: Phys. Rev. 94,1531 (1954). - C. S. FULLER U. J. A. DITZENBERGER: J. Appl. Phys. 25, 1439 (1954). - R. F. BREBRICK U. W. W. SCANLON: BuH. Amer. Phys. Soc. 29, No. 3, T 4 (1954). 4 K. B. McAFEE, W. SHOCKLEY u. M. SPARKS: Phys. Rev. 86, 137 (1952). Ziff. 13,14. Elektronenstatistik. 31 13. Oberflächen, Korngrenzen, innere Grenzflächen.

KECK: Physica, Haag 20,1059 (1954). - W. HEYWANG: Z. Naturforsch. 11a, 238 (1956). 4 R. N. HALL: Phys. Rev. 88, 139 (1952). J. Phys. ehern. 57, 836 (1953). 5 G. K. TEAL U. J. B. LITTLE: Phys. Rev. 78, 647 (1950). G. K. TEAL, M. SPARKS u. E. BUEHLER: Phys. Rev. 81, 637 (1951) und Proc. a. 26 o. MADELUNG: Halbleiter. Ziff. 11. Ziehens den Störstellengehalt der Schmelze ändern kann und damit der Einkristall eine vorgegebene Störstellenverteilung erhält. Das zweite Verfahren hat den Vorteil einer größeren Einfachheit, zumal es sich direkt an das Zonenreinigen anschließen läßt.

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Electrical Conductivity II / Elektrische Leitungsphänomene II by O. Madelung, A. B. Lidiard, J. M. Stevels, E. Darmois

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