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dc.contributor.authorHamed, Fathalla A.en_US
dc.date.accessioned2009-07-09T18:42:23Z
dc.date.available2009-07-09T18:42:23Z
dc.date.issued1991-07-09T18:42:23Z
dc.identifier.urihttp://hdl.handle.net/10464/2015
dc.description.abstractThe superconducting transition temperature Tc of metallic glasses ZrxFelOO-x (x=80, 75), Zr75(NixFelOO-x)25 (x=75, 50, 25), and CU2SZr75 were measured under quasi-hydrostatic pressure up to 8 OPa (80kbar). The volume (pressure) dependence of the electron-phonon coupling parameters Aep for CU25Zr75 was calculated using the McMillan equatio11. Using this volume dependence of Aep and the modified McMillan equation which incorporates spin-fluctuations, the volume dependence of the spin fluctuation parameter, Asf, was determined in Zr75Ni25, ZrxFelOO-x , a11d Zr75(NixFelOO-x)25. It was found that with increasing pressure, spinfluctuations are suppressed at a faster rate in ZrxFe lOO-x and Zr75(NixFelOO-x)25, as Fe concentration is increased. The rate of suppression of spin-fluctuations with pressure was also found to be higher in Fe-Zr glasses than in Ni-Zr glasses of similar composition.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectMetallic glasses.en_US
dc.subjectFluctuations (Physics)en_US
dc.subjectPressure--Measurement.en_US
dc.subjectSpin (Aerodynamics)en_US
dc.titlePressure dependence of spin fluctuations in metallic glasses Zrâ â Niâ â ,Zrâ â (Nix/Feâ â â -x)â â and /Zrx/feâ â â -xen_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Physicsen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Physicsen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US


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