Theoretical studies of vacancy pair centres in the alkaline earth oxides
Thesis
To, K. C. Theoretical studies of vacancy pair centres in the alkaline earth oxides. https://keele-repository.worktribe.com/output/412658

This thesis is concerned with colour centres, particularly the FC+-centre, in the alkaline earth oxides. The FC+-centre consists of an electron trapped at an anion-cation vacancy pair and is intimately connected with the F+-centre, an electron trappe... Read More about Theoretical studies of vacancy pair centres in the alkaline earth oxides.

Experimental study of coherence phenomena in electric dipole systems at millimetre wavelengths
Thesis
Uppal, G. S. Experimental study of coherence phenomena in electric dipole systems at millimetre wavelengths. https://keele-repository.worktribe.com/output/412659

The work described in this thesis is concerned with the
development of millimetre wave spectrometers and their application to the study of coherence phenomena in a system of electric dipoles. The investigations reported here were aimed at developin... Read More about Experimental study of coherence phenomena in electric dipole systems at millimetre wavelengths.

The structure of polyacrylonitrile based carbon fibres as studied by electron spin resonance and other electronic properties
Thesis
Assabghy, F. Y. I. The structure of polyacrylonitrile based carbon fibres as studied by electron spin resonance and other electronic properties. https://keele-repository.worktribe.com/output/412660

In view of their recently acquired technological importance, the structure and properties of carbon fibres are currently receiving considerable attention. Although the use of electron spin resonance (CSR) in the study of carbons and graphites has lon... Read More about The structure of polyacrylonitrile based carbon fibres as studied by electron spin resonance and other electronic properties.

The mobility of electrons in hydrogen at low pressures being a thesis on the motion of electrons in pure hydrogen at moderate values of E/p
Thesis
Bedford, D. K. The mobility of electrons in hydrogen at low pressures being a thesis on the motion of electrons in pure hydrogen at moderate values of E/p. https://keele-repository.worktribe.com/output/412662

Measurements of the electron drift velocity at room temperature in pure molecular hydrogen have been made for the E/p range between 40 and 360 volts.cm-1 .torr-1. Experimental conditions were arranged to minimalise the effects of space charge distort... Read More about The mobility of electrons in hydrogen at low pressures being a thesis on the motion of electrons in pure hydrogen at moderate values of E/p.

Electron paramagnetic resonance studies of 3d3 ions in magnesium oxide
Thesis
Codling, A. J. B. Electron paramagnetic resonance studies of 3d3 ions in magnesium oxide. https://keele-repository.worktribe.com/output/412666

This thesis reports some electron spin resonance spectra
of v2+ and cr3+ ions in magnesium oxide.
Chapters I and II describe the basic features of electron paramagnetic resonance and its application to transition metal ions in insulating crystall... Read More about Electron paramagnetic resonance studies of 3d3 ions in magnesium oxide.

Electron paramagnetic resonance studies of defects in single crystals of barium oxide and calcium tungstate
Thesis
Weightman, P. Electron paramagnetic resonance studies of defects in single crystals of barium oxide and calcium tungstate. https://keele-repository.worktribe.com/output/412688

E.P.R. studies are reported of point defects in single crystals of BaO and neutron irradiated CaWO4.

The work function of titanium and selected metals in vacuum
Thesis
D'Arcy, R. J. The work function of titanium and selected metals in vacuum. https://keele-repository.worktribe.com/output/412822

The work functions of titanium films have been measured at room temperature with a scanning probe version of the Kelvin-Zisman dynamic capacitor. The values for the clean surfaces of films deposited onto a gold substrate at 2.10-9 torr lay between 4.... Read More about The work function of titanium and selected metals in vacuum.

Electron paramagnetic resonance studies of ferric ions in myoglobin
Thesis
Farrow, R. H. Electron paramagnetic resonance studies of ferric ions in myoglobin. https://keele-repository.worktribe.com/output/412824

This thesis reports investigations of the protein molecule myoglobin by means of electron paramagnetic resonance and supplemented by optical absorption measurements.
Certain ions can be attached to the sixth coordination point of the iron atom in th... Read More about Electron paramagnetic resonance studies of ferric ions in myoglobin.

Electron paramagnetic resonance in silicon
Thesis
Lacey, S. D. Electron paramagnetic resonance in silicon. https://keele-repository.worktribe.com/output/412830

Electron Paramagnetic Resonance (E.P.R.) in silicon doped with the shallow Group V donors phosphorus and arsenic has been studied over the temperature range from 20 to 5O°K. The range of donor concentrations examined was sufficient for exchange to be... Read More about Electron paramagnetic resonance in silicon.

The electrical resistivity of evaporated films of titanium and erbium and the study of the resistance changes of erbium films owing to the sorption of gases
Thesis
Singh, B. The electrical resistivity of evaporated films of titanium and erbium and the study of the resistance changes of erbium films owing to the sorption of gases. https://keele-repository.worktribe.com/output/412840

This thesis has been written in two parts in order that the reader will be able to follow the different types of experiment and the results obtained in two different vacuum systems.
In the first part of the thesis are described the results on the el... Read More about The electrical resistivity of evaporated films of titanium and erbium and the study of the resistance changes of erbium films owing to the sorption of gases.

Auger electron and characteristic energy loss spectroscopy of some metals
Thesis
Suleman, M. Auger electron and characteristic energy loss spectroscopy of some metals. https://keele-repository.worktribe.com/output/412841

A sensitive high resolution three grid electron energy analyser has been constructed and has been used to measure the Auger electron and characteristic energy loss spectra of clean Cu, Au, Be, Al and Fe. In addition spectra of Cu black and Au black s... Read More about Auger electron and characteristic energy loss spectroscopy of some metals.

Exchange interactions and relaxation in paramagnets
Thesis
Beswick, J. Exchange interactions and relaxation in paramagnets. https://keele-repository.worktribe.com/output/412863

This thesis presents some investigations into a variety of paramagnetic systems. Electron paramagnetic resonance is often used to investigate the behaviour of paramagnetic ions present as substitutional impurities in diamagnetic host crystals. Measur... Read More about Exchange interactions and relaxation in paramagnets.

Gas incorporation in sputtered and evaporated metal films
Thesis
Mitchell, I. V. Gas incorporation in sputtered and evaporated metal films. https://keele-repository.worktribe.com/output/412924

The argon and nitrogen gas concentrations in thin films have been measured for seven different metals. Sputtered and evaporated films are deposited on glass and tungsten substrates in a stainless steel ultra high vacuum system, which is designed to o... Read More about Gas incorporation in sputtered and evaporated metal films.

Electrostatic space focusing of molecular beams: some methods and applications
Thesis
Sweeting, R. C. Electrostatic space focusing of molecular beams: some methods and applications. https://keele-repository.worktribe.com/output/412926

Electrostatic space focusing of molecular beams has been introduced by means of a brief review of some methods which have been employed in the development of microwave spectroscopy of molecules.
Some electrostatic focuser configurations suitable for... Read More about Electrostatic space focusing of molecular beams: some methods and applications.

The optical properties of rare earth metals
Thesis
Cleyet, B. The optical properties of rare earth metals. https://keele-repository.worktribe.com/output/412934

Ellipsometric measurements at the film-substrate interface of the optical constants of five lanthanide metals, (Nd, Gd, Tb, Dy and Yb), have been made within 0.5 and 5.5eV. General agreement was found with theoretically predicted conductivity from A.... Read More about The optical properties of rare earth metals.

The fracture of filled epoxy resins
Thesis
Lilley, J. The fracture of filled epoxy resins. https://keele-repository.worktribe.com/output/412946

The useful structural materials are those that are both strong and tough. The "toughness" of a given material is characterised by its fracture energy which is refined as the total work expended in propagating the crack so as to produce unit area of n... Read More about The fracture of filled epoxy resins.

The construction and characteristics of an ammonia beam maser employing a fabry-perot cavity
Thesis
Sealy Smart, G. D. The construction and characteristics of an ammonia beam maser employing a fabry-perot cavity. https://keele-repository.worktribe.com/output/412960

The construction of an ammonia molecular beam maser employing an open resonator is described. The operation of this maser as an amplifier enables the effects of mode degeneracy in the resonator to be examined in a controlled manner. Its operation abo... Read More about The construction and characteristics of an ammonia beam maser employing a fabry-perot cavity.

Slow crack propagation in glass
Thesis
Weidmann, G. Slow crack propagation in glass. https://keele-repository.worktribe.com/output/412961

Slow crack propagation in glass is examined in a variety of environments using the double-torsion technique. The results are interpreted in terms of a limited plasticity fracture criterion and the time dependence of the yield stress.

Spectroscopic studies of some haemoglobin derivatives
Thesis
Gray, K. Spectroscopic studies of some haemoglobin derivatives. https://keele-repository.worktribe.com/output/412982

This thesis describes a study of the magnetic and optical properties of human haemoglobin and certain of its derivatives. The techniques of electron spin resonance spectroscopy and optical spectrophotometry at low temperatures are used.
An introduct... Read More about Spectroscopic studies of some haemoglobin derivatives.

Coupled molecule-radiation field effects in an ammonia beam maser
Thesis
Lefrere, P. R. Coupled molecule-radiation field effects in an ammonia beam maser. https://keele-repository.worktribe.com/output/413024

Details are given of a number of phenomena which have been observed in an advanced ammonia beam maser. These include cooperative effects arising during the build-up of oscillations, regenerative nutation, pulling and quenching of oscillations, induce... Read More about Coupled molecule-radiation field effects in an ammonia beam maser.