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dc.contributor.authorKlassen, J. Robert.en_US
dc.date.accessioned2009-07-14T19:42:03Z
dc.date.available2009-07-14T19:42:03Z
dc.date.issued2004-07-14T19:42:03Z
dc.identifier.urihttp://hdl.handle.net/10464/2335
dc.description.abstractA new Ultra-High Vacuum (UHV) reflectance spectrometer was successfully designed, making use of a Janis Industries ST-400 sample cryostat, IR Labs bolometer, and Briiker IFS 66 v/S spectrometer. Two of the noteworthy features include an in situ gold evaporator and internal reference path, both of which allow for the experiment to progress with a completely undisturbed sample position. As tested, the system was designed to operate between 4.2 K and 325 K over a frequency range of 60 - 670 cm~^. This frequency range can easily be extended through the addition of appUcable detectors. Tests were performed on SrTiOa, a highly ionic incipient ferroelectric insulator with a well known reflectance. The presence and temperatmre dependence of the lowest frequency "soft" mode were measured, as was the presence of the other two infrared modes. During the structural phase transition from cubic to tetragonal perovskite, the splitting of the second phonon mode was also observed. All of the collected data indicate good agreement with previous measurements, with a minor discrepency between the actual and recorded sample temperatures.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectReflectance spectroscopy.en_US
dc.subjectSpectrometeren_US
dc.subjectSpectrometeren_US
dc.titleThe design of a reflectance spectrometer and its calibration using SrTiO3 /en_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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