The Development of the Quantum-Mechanical Electron Theory of Metals: 1928---1933
The development of the quantum-mechanical electron theory of metals: 1S28—1933 Lillian Hoddeson and Gordon Bayrn Department of Physics, University of Illinois at Urbana-Champaign, Urbana, illinois 6180f Michael Eckert Deutsches Museum, Postfach 260102, 0-8000 Munich 26, Federal Republic of Germany We trace the fundamental developments and events, in their intellectual as well as institutional settings, of the emergence of the quantum-mechanical electron theory of metals from 1928 to 1933. This paper contin- ues an earlier study of the first phase of the development —from 1926 to 1928—devoted to finding the gen- eral quantum-mechanical framework. Solid state, by providing a large and ready number of concrete prob- lems, functioned during the period treated here as a target of application for the recently developed quan- tum mechanics; a rush of interrelated successes by numerous theoretical physicists, including Bethe, Bloch, Heisenberg, Peierls, Landau, Slater, and Wilson, established in these years the network of concepts that structure the modern quantum theory of solids. We focus on three examples: band theory, magnetism, and superconductivity, the former two immediate successes of the quantum theory, the latter a persistent failure in this period. The history revolves in large part around the theoretical physics institutes of the Universi- ties of Munich, under Sommerfeld, Leipzig under Heisenberg, and the Eidgenossische Technische Hochschule (ETH) in Zurich under Pauli. The year 1933 marked both a climax and a transition; as the lay- ing of foundations reached a temporary conclusion, attention began to shift from general formulations to computation of the properties of particular solids. CONTENTS mechanics of electrons in a crystal lattice (Bloch, 1928); these were followed by the further development in Introduction 287 1928—1933 of the quantum-mechanical basis of the I.
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