Browsing M.Sc. Physics by Issue Date
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The diffusion of Coâ ¶æº© Zrâ â Tiâ â alloy /nS. Kumar.  260 St Catharines [Ont.] : Dept. of Physics, Brock University,
(Brock University, 19730709)The diffusion of Co60 in the body centered cubic beta phase of a ZrSOTi SO alloy has been studied at 900°, 1200°, and 1440°C. The results confirm earlier unpublished data obtained by Kidson17 • The temperature dependence ... 
Coriolis effects in symmetric top spectra /
(Brock University, 19740609)The "xy Coriolis Coupling Theory" as presented by Dilauro and Mills (1966) is reformulated and extended to the determination of Raman intensities. Theoretical Raman and Infrared spectra are computed in order to understand ... 
An application of cellcluster theory to a rare gas crystal /n[by] K. Westera.  260 St. Catharines [Ont.] : Dept. of Physics, Brock University,
(Brock University, 19740709)The LennardJones Devonshire 1 (LJD) single particle theory for liquids is extended and applied to the anharmonic solid in a high temperature limit. The exact free energy for the crystal is expressed as a convergent ... 
Dechanneling of 2 Mev Heâ ½ in gold
(Brock University, 19780709)Thick gold single crystals of high quality were prepared for Rutherford Backscattering Dechanneling studies by electropolishing and annealing. The variation.; with temperature of the Random Fraction versus Depth spectrtnn ... 
The band structure of Cd0
(Brock University, 19780709)The Augmented Pl ane Wave Method has been used to calculate the oneelectron energy band structure of CdO. Energy eigenva l ues were calculated along three symmetry lines and for some other general wavevectors of interest. 
Brillouin spectroscopy : measurement of elastic and photoelastic constants of some alkali holide crystals
(Brock University, 19790709)The assembly and testing of apparatus for the measurement of elastic and photoelastic constants by Brillouin scattering, using a FabryPerot interferometer and with argon ion laser excitation is described. Such measurements ... 
On the anharmonic, multiphonon, DebyeWaller contributions to the phononlimited resistivity of metals : applications to Na and K
(Brock University, 19790709)The anharmonic, multiphonon (MP), and OebyeWaller factor (OW) contributions to the phonon limited resistivity (;0) of metals derived by Shukla and Muller (1979) by the doubletime temperature dependent Green function ... 
On the path integral formulation and the evaluation of quantum statistical averages
(Brock University, 19790709)Four problems of physical interest have been solved in this thesis using the path integral formalism. Using the trigonometric expansion method of Burton and de Borde (1955), we found the kernel for two interacting one ... 
On the formulation and the calculation of the harmonic contributions to the DebyeWaller factor in metals (sodium)
(Brock University, 19790709)The algebraic expressions for the anharmonic contributions to the DebyeWaller factor up to 0(A ) and 0 L% ) £ where ^ is the scattering wavevector] have been derived in a form suitable for cubic metals with small ion ... 
Rotationelectronic interaction in the 3pcomplex Rydberg state of water
(Brock University, 19790709)An energy theory is formulated for the rotational energy levels in a pcomplex Rydberg state of an asymmetric top molecule of symmetry C2v. The effective Hamiltonian used consists of the usual rigid rotor Hamiltonian ... 
An experimental investigation of dechanneling in copper single crystals
(Brock University, 19840709)This investigation comprises a comparison of experimental and theoretical dechanneling of MeV protons in copper single crystals. Dechanneling results when an ion's transverse energy increases to the value where the ion ... 
Application of [Lambda] to the fourth perturbation theory in calculating the equation of state of rare gas solids and fcc metals
(Brock University, 19840709)We have calculated the thermodynamic properties of monatomic fcc crystals from the high temperature limit of the Helmholtz free energy. This equation of state included the static and vibrational energy components. The ... 
Molecular dynamics calculation of mean square displacement in alkali metals and rare gas solids and comparison with lattice dynamics
(Brock University, 19840709)Molec ul ar dynamics calculations of the mean sq ua re displacement have been carried out for the alkali metals Na, K and Cs and for an fcc nearest neighbour LennardJones model applicable to rare gas solids. The ... 
An analysis of decoupling procedures in generating thermal Green's functions of O([lambda]â ´) by the Zubarev equation of motion method
(Brock University, 19850709)The Zubarev equation of motion method has been applied to an anharmonic crystal of O( ,,4). All possible decoupling schemes have been interpreted in order to determine finite temperature expressions for the one phonon ... 
The finite bandwidth model for spin fluctuations in Pd
(Brock University, 19880709)The frequency dependence of the electronspin fluctuation spectrum, P(Q), is calculated in the finite bandwidth model. We find that for Pd, which has a nearly full dband, the magnitude, the range, and the peak frequency ... 
Pressure dependence of superconductivity in amorphous Ni x Zr 100x alloys
(Brock University, 19881002)Pressure variations of the superconducting transition temperature Ic of a series of amorphous NixZr 1 OOx alloys have been studied under quasmydrostatic pressures upto 8 G Pa. For amorphous samples having Niconcentration ... 
On the equation of state and atomic mean square displacement of crystals
(Brock University, 19890709)We have presented a Green's function method for the calculation of the atomic mean square displacement (MSD) for an anharmonic Hamil toni an . This method effectively sums a whole class of anharmonic contributions to ... 
A treatment of atomic mean square displacement in higher order perturbation theory
(Brock University, 19900709)A general derivation of the anharmonic coefficients for a periodic lattice invoking the special case of the central force interaction is presented. All of the contributions to mean square displacement (MSD) to order 14 ... 
Calculation of the optical conductivity for the Anderson impurity model using the slave boson technique
(Brock University, 19900709)The optical conductivity of the Anderson impurity mode l has been calculated by emp l oying the slave boson technique and an expansion in powers of l i N, where N is the d egeneracy o f the f electron level . This method ... 
Study of heat capacity measurement methods for small samples
(Brock University, 19900709)Methods of measuring specific heats of small samples were studied. Three automated methods were explored, two of which have shown promising results. The adiabatic continuous heating method, has provided smooth well ...