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Download Anomalous Effects in Simple Metals by Albert Overhauser, Gene Dresselhaus PDF

By Albert Overhauser, Gene Dresselhaus

Utilizing potassium to illustrate, this paintings provides a special method of the anomalous results in metals, leading to wisdom that may be utilized to related fabrics.
so much theoretical predictions at the electrical, magnetic, optical, and thermal houses of an easy steel do ? strangely ? now not consider experimental habit present in alkali metals. the aim of this quantity is to rfile the various phenomena that experience violated expectancies. It collects in a single position the learn by means of Albert Overhauser, one of many pioneers of the sphere. His and his collaborators paintings has ended in a unified synthesis of alkali steel peculiarities. the original selection of sixty five reprint papers, commented the place essential to clarify the context and standpoint, is preceded by way of a radical and good paced introduction.
The booklet is intended to complicated good kingdom physics and technological know-how historians.
it could actually additionally function extra studying in complicated sturdy nation physics courses.
With a foreword by way of Mildred and Gene Dresselhaus

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17 18 9 Magnetoresistivity and the Induced Torque Technique Experimental studies of galvanomagnetic effects in the alkali metals have revealed many phenomena which prove that their Fermi surface intersects CDW energy-gap planes and becomes (thereby) multiply connected. The importance of magnetoresistance, for example, stems from transport theorems due to Lifshitz et al. [Ref. 6, R8], who showed that the resistivity of a metal with a simply-connected Fermi sur1. g. 110 kG, ω c τ 275) without any sign of saturation [Refs.

6, R46] in 1985. Surprisingly the 6 ev gap (near „ω D 35e v ) was filled in by a nearly flat “bridge”, (Figure 3 of Jensen and Plummer) just below E F . 3]. 2. ) The resulting plot of E i versus „ω, which includes CDW minigaps and concomitant plane-wave mixing [Eq. 5. The nearly flat “bridge” across the “expected” gap near 35 ev is explained. , Phys. Rev. B41, 8075 (1990). Ma and Shung, Phys. Rev. Anomalous Effects in Simple Metals. Albert Overhauser Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim ISBN: 978-3-527-40859-7 12 Angle-Resolved Photoemission B50, 5004 (1994), conclude that a CDW in K is essential in order to explain the sharp photoemission peaks having E i near E F .

11 [Eq. 1]. Follstaedt and Slichter [Ref. 5 ı K in a 6T field. 215O e, agrees with the value expected if a CDW were not present. Phase fluctuations can motionally narrow the Knight-shift broadening caused by the CDW [R47], and this can explain the null result found by Follstaedt and Slichter. The theory of motional narrowing (in general) is due to Pines and Slichter [Ref. 18, R47]. The narrowing caused by phasons is very dependent on temperature and, of course, is sensitive to the phason frequency spectrum.

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