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dc.contributor.advisor Josephson, Ben
dc.creatorWatts, Roderick Kent
dc.date.accessioned 2016-04-22T21:58:43Z
dc.date.available 2016-04-22T21:58:43Z
dc.date.issued 1963
dc.identifier.citation Watts, Roderick Kent. "Relaxation of the 1-2 and 2-3 transitions in ruby." (1963) Master’s Thesis, Rice University. https://hdl.handle.net/1911/89842.
dc.identifier.urihttps://hdl.handle.net/1911/89842
dc.description.abstract The interactions by which a System of paramagnetic ions maintains thermal equilibrium with the crystal lattice containing them have been studied experimentally by both non-resonant and resonant methods.12 A resonant pulse method was employed in this investigation because it allows a direct monitoring of the return to equilibrium of a disturbed paramagnetic spin system. The spin system is described by a set of simultaneous rate equations for the populations of the various energy levels of the system. In the pulse method a quantity proportional to the difference between the populations of two energy levels is measured as a function of time. Since solutions of the rate equations are sums of exponentials, the characteristic time constants or relaxation times are the quantities of interest. The relaxation time has been measured for the 1-2 and 2-3 transitions in 0.05% ruby at 9.328 Gc./s. as a function of the angle between a constant magnetic field and the c axis of the crystal at 4.2°K. A pulsed spectrometer was built for making these measurements. Cross relaxation, or spin-spin interaction, was found to be present as well as spin-lattice relaxation.
dc.format.extent 35 pp
dc.language.iso eng
dc.title Relaxation of the 1-2 and 2-3 transitions in ruby
dc.identifier.digital RICE0876
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Physics
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Arts
dc.format.digitalOrigin reformatted digital
dc.identifier.callno Thesis PHYS. 1963 WATTS


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