Biographical Memoirs Volume 70 (1996) / Chapter Skim
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Bernd Theodor Matthias
Bernd Theodor Matthias
Pages 240-259
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His unique creativity was based on a remarkably deep appreciation of relationships embeciclec! in Mencleleev's perioclic table of the elements.
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Reich, sent BerncI, at the age of fourteen, to college at the Knabeninstitute auf clem Rosenberg, St. Gallen, Switzerland.
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in von Hippel's lab at MIT only one year, they became good friends. William Shockley was instrumental in bringing him to Bell Labs in Murray Hill.
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to the left it meant superconductivity, to the right it meant ferromagnetism, and no response meant "nothing." Volume fractions coup! be cruclely estimatec!
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S Kim, Gordon Knapp, Angus Lawson, Brian Maple, Shaun McCarthy, Brian Sales, Al Sweedler, George Webb, Dieter Wohlleben, among others his passion for discovery using the direct approach of synthesizing, observing, and making empirical generalization.
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This proposition was, of course, advanced merely to promote an argument which it almost always clicI, but without excessive ego damage amongst Berncl's large group of theoretical friencis.
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the organic salt guanicline aluminum sulfate hexahydrate, followed by simple anhydrous ammo
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some superconducting interstitial compounds of transition metals with boricles, carbides, en c! nitrides in Berlin in the early 1930s.
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that a simple universal curve could be drawn for Tc as a function of the average valence electron per atom ratio in
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6.9 average valence electrons per atom. The preclictive value of the simple rule was particularly useful in the 1950s when the purity of transition metals was a major clifficulty.
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The relevant interaction was fount! from the concentration clepenclence of the clepression of the superconducting transition of lanthanum to be clepenclent on the spin rather than the total angular momentum of the f electrons.
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Co in titanium were ten times as effective in raising the Tc of the room temperature hexagonal phase of titanium than preclictec! from his empirical valence electron per atom rule, however, the anomalous behavior was given a simple metallurgical explanation after a careful investigation carrier!
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tunnel junctions with transition metal, elements such as Nb spectroscopic studies fount! direct eviclence for the phonon mechanism.
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the earlier discovery of superconductivity in the molybdenum-based Chevrel phases such as PbMO6S~ which Burnt! consiclerec!
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cliscoverec! two metallic ferromagnets in which magnetism was completely unexpected because none of the constituents were magnetic metals, namely ZrZn2 (1958)
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256 BIOGRAPHICAL MEMOIRS the way to interesting phenomena in a new class of semiconclucting ferromagnets. One of the major clevelopments of the twentieth century has been the emergence of the science of materials from the traditional disciplines of physics, chemistry, and metallurgy.
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95:1435. 1955 Empirical relations between superconductivity and the number of valence electrons per atom.
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Logical magnetic moment associated with an iron atom dissolved in various transition metal alloys.
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Hill. Positive isotope effect on the superconducting transition temperature of oc-uranium.
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