Anomalous Effects in Simple Metals by Albert Overhauser, Gene Dresselhaus

By Albert Overhauser, Gene Dresselhaus

Utilizing potassium for instance, this paintings offers a different 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 ? no longer trust experimental habit present in alkali metals. the aim of this quantity is to record the various phenomena that experience violated expectancies. It collects in a single position the study via 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 means of a radical and good paced introduction.
The ebook is intended to complicated reliable country physics and technology historians.
it might probably additionally function extra studying in complicated stable country physics courses.
With a foreword through Mildred and Gene Dresselhaus

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But the cooperative mechanism requires a further condition, specific to the solute: the paramagnetic orbital of the solute must be localized in a region small compared to the wavelength of the spin-density wave. ) The physical origin of such a condition is clear. If the paramagnetic orbital, although localized, were to extend over several half-wavelengths of the spin-density wave, the orbital’s exchange interaction with the wave would average to zero, and the effective fields necessary for long-range order would vanish.

Optical transitions across CDW energy gaps are then allowed, and explain the shape and anisotropy of the anomalous absorption [R11]. Magnetoflicker noise [R64] is a phenomenon which was postulated in 1974 in an attempt to explain the four-peaked induced torque patterns described in Chapter 10. The idea was that fluctuations in the direction of Q would create noise and also allow Q’s mean direction to switch during rotation of H. However, Hockett and Lazarus [Ref. on page 355; R19] found no excess noise in K.

Lack of an alternative suggests that the phenomena of interest result from the exchange interaction between the spins of the paramagnetic solute and those of the conduction electrons. 1) H 0 D (G/N) i, j where i labels the spin and position operators of the conduction electrons and j labels the spin and lattice site of the paramagnetic solute atoms. 1) is equivalent to neglecting the dependence of the exchange integrals on the wave vectors of the conduction electrons. 4 eV . 2) The number of atoms per unit volume is N.

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