Thesis (Ph. D.)--Cornell University, 1905.

Thesis (Ph. D.)--Cornell University, 1905.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1932. / Typescript. Includes bibliographical references (leaves [45-46]).

Duisburg, Essen, University Diss., 2004.

This Investigation was undertaken in an effort to compare the electrical properties of thin layers of InSb with those of the bulk material. Layers as thin as 20(µ) were produced using a squashing device. Laue back-reflection showed that the layers were polycrystalline in nature. Measurements of resistivity, magnetoresistance and Hall effect were then taken. From the resistivity and Hall effect measurements the Hall mobility was calculated. The mobility of the thin samples was lower than that of the bulk material for the same temperature. Considering the increased scattering this, however, is what was expected. Theoretical calculations were then performed using the experimental results. Since the layers were polycrystalline and were not sufficiently thin the theory of thin films could not be applied. Therefore general transport theory was used and the scattering parameters were calculated. From these the dominant scattering mechanisms were then obtained. For the thin layers the dominant scattering mechanism was impurity scattering while in the bulk samples polar scattering by the optical modes of vibration proved to be the dominant mode of scattering. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

The spectra of Indium in the region 1200 A to 6900 A have been investigated. For this purpose a vacuum spectrograph, equipped with two slits at angle of incidence of 80° and 21° 34’, has been used. Details of the method of adjustment and calibration of the instrument are given. An electrodeless discharge has been used as a source, and methods of securing satisfactory output from this source are discussed. About 338 Indium lines have been measured, of which 62 have been previously reported. Term value predictions for Indium III are discussed and from these predictions some new lines have been classified. Several of the lines previously classified as Indium III have been found to be in error by as much as 0.5 A. In addition a few of the new lines have been classified in the Indium II spectra. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

[No Abstract Submitted] / Science, Faculty of / Physics and Astronomy, Department of / Graduate

Thesis (Ph. D.)--Columbia University, 1940. / Vita.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1947. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

No description available.