Browsing M.Sc. Physics by Author "Department of Physics"
Now showing items 120 of 88

An analysis of decoupling procedures in generating thermal Green's functions of O([lambda]â ´) by the Zubarev equation of motion method
Delogu, Richard. (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 ... 
Application of [Lambda] to the fourth perturbation theory in calculating the equation of state of rare gas solids and fcc metals
Shanes, Fredrick C. (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 ... 
An application of cellcluster theory to a rare gas crystal /n[by] K. Westera.  260 St. Catharines [Ont.] : Dept. of Physics, Brock University,
Westera, K. (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 ... 
Application of Reptation Quantum Monte Carlo and Related Methods to LiH
Ospadov, Egor (Brock University, 20120918)This work investigates mathematical details and computational aspects of MetropolisHastings reptation quantum Monte Carlo and its variants, in addition to the Bounce method and its variants. The issues that concern us ... 
The band structure of Cd0
Leaver, Alan. (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
BrÃ¤ul, Hans. (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 ... 
Calculation of nondifferential properties for atomic ground states /
Langfelder, Peter. (Brock University, 19970521)A new method for sampling the exact (within the nodal error) ground state distribution and nondiflPerential properties of multielectron systems is developed and applied to firstrow atoms. Calculated properties are the ... 
Calculation of the magnetic field penetration depth for highTc cuprate superconductors based on the Interlayer Pair Tunneling model /
Castle, Melissa A. (Brock University, 19990521)In this work, the magnetic field penetration depth for highTc cuprate superconductors is calculated using a recent Interlayer Pair Tunneling (ILPT) model proposed by Chakravarty, Sudb0, Anderson, and Strong [1] to explain ... 
Calculation of the optical conductivity for the Anderson impurity model using the slave boson technique
Arberg, Peter. (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 ... 
Composition analysis of highTc superconducting thin films by quantitative xray fluorescence
Elsahlli, Tareg. (Brock University, 19920709)A method is presented for determining the composition of thin films containing the elements Bi, Sr, Br, Cu, and Ca. Quantitative xray fluorescence (XRF) consisting of radioactive sources (secondary foil excitor 241AmMo ... 
Confocal and twophoton microscopy : image enhancement /
Kefayati, Sarah. (Brock University, 20080615)Confocal and twophoton microcopy have become essential tools in biological research and today many investigations are not possible without their help. The valuable advantage that these two techniques offer is the ability ... 
Coriolis effects in symmetric top spectra /
Cimprich, Lloyd Lee John. (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 ... 
Crystal Growth and Characterization of Li0.9Mo6O17
Xiao, Peng (Brock University, 20121210)Purple bronze Li0.9Mo6O17 has attracted researchers for its low dimensionality and corresponding properties. Although it has been studied for nearly two decades, there are still some unsolved puzzles with this unique ... 
Crystal growth, characterization and point contact spectroscopy on CuxTiSe₂
Potalivo, Michael (Brock University, 20110517)Various s e t s of single c rys t a l s and poly c rys t a l s of Cux TiSe2 were grown. X r ay diffraction and ene rgy dispersive spe c t ros copy r e sul t s verified tha t the c rys t a l s were the ... 
Crystal growth, Raman scattering and optical properties of the superconductor Cd2Re2O7(16O, 18O)/
Hajialamdari, Mojtaba. (Brock University, 20080615)Using the Physical Vapor Transport method, single crystals of Cd2Re207 have been grown, and crystals of dimensions up to 8x6x2 mm have been achieved. Xray diffraction from a single crystal of Cd2Re207 has showed the ... 
Crystallinity, Magnetic and Electrical Properties of Bi doped LaVO3
Sepiedeh, Pirasteh (Brock University, 20120517)We report the results of crystal structure, magnetization and resistivity measurements of Bi doped LaVO3. Xray diffraction (XRD) shows that if doping Bi in the La site is less than ten percent, the crystal structure of ... 
Dechanneling of 2 Mev Heâ ½ in gold
Wright, David Roderick. (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 design of a reflectance spectrometer and its calibration using SrTiO3 /
Klassen, J. Robert. (Brock University, 20040714)A new UltraHigh Vacuum (UHV) reflectance spectrometer was successfully designed, making use of a Janis Industries ST400 sample cryostat, IR Labs bolometer, and Briiker IFS 66 v/S spectrometer. Two of the noteworthy ... 
Developing a numerical inversetheorybased extraction of orientationdependent relaxation rates from partially relaxed spectra
Ghamari, Mohammad Sedigh (Brock University, 20100309)Secondrank tensor interactions, such as quadrupolar interactions between the spin 1 deuterium nuclei and the electric field gradients created by chemical bonds, are affected by rapid random molecular motions that ... 
Diffusion Monte Carlo study of electronic properties for H and Be atoms /
Yu, Li. (Brock University, 20060604)We examined three different algorithms used in diffusion Monte Carlo (DMC) to study their precisions and accuracies in predicting properties of isolated atoms, which are H atom ground state, Be atom ground state and H ...