71 |
Thermal conductivity studies of YBa₂Cu₃O₇₋δDelap, Martin Richard January 1990 (has links)
Apparatus to measure the thermal conductivity of YBa(_2)Cu(_3)O(_7-δ) at temperatures between 20K and 120K has been designed and constructed. The thermal conductivity is measured using a longitudinal steady state heat flow technique. Thermal conductivity measurements have been performed upon a sample of YBa(_2)Cu(_3)O(_7-δ) which has been subjected to a series of heat treatments in order to remove oxygen from the material. The measurements show conclusively that the thermal conductivity of YBa(_2)Cu(_3)O(_7-δ) is very strongly influenced by the oxygen content of the material. A reduction of the oxygen content of the material results in a substantial lowering of the thermal conductivity. To explain this result, a quantitative model has been constructed; the model demonstrates that consideration of the changes in phonon interactions alone cannot account for the differences in the behaviour of the thermal conductivity of YBa(_2)Cu(_3)O(_6) and YBa(_2)Cu(_3)O(_7). In addition; the model, shows that there must be a significant carrier contribution to the thermal conductivity in both the normal and superconducting states. A physical process has been proposed which provides the required large carrier contribution below T(_c). Further studies have been performed on a series of samples of YBa(_2)Cu(_3)O(_7-δ) which were sintered at slightly different temperatures. Qualitative analysis of the physical properties, of these samples has been performed.
|
72 |
Solid state chemistry of selected fullerenesBrown, Craig January 1999 (has links)
No description available.
|
73 |
Eliashberg theory and the high T(c) oxides.Marsiglio, Frank. Carbotte, J.P. Unknown Date (has links)
Thesis (Ph.D.)--McMaster University (Canada), 1988. / Source: Dissertation Abstracts International, Volume: 49-08, Section: B, page: 3279. Supervisor: J. P. Carbotte.
|
74 |
Some applications of Eliashberg theory.Akis, Richard J. Carbotte, Jules P. Unknown Date (has links)
Thesis (Ph.D.)--McMaster University (Canada), 1991. / Source: Dissertation Abstracts International, Volume: 54-02, Section: B, page: 0910.
|
75 |
Pair-breaking in superconductivity.Nicol, Elisabeth J. Carbotte, J.P. Unknown Date (has links)
Thesis (Ph.D.)--McMaster University (Canada), 1991. / Source: Dissertation Abstracts International, Volume: 54-02, Section: B, page: 0915.
|
76 |
The fabrication of PBCO buffered step-edge Josephson junctions /Van Staden, Wynand Fourie. January 2007 (has links)
Thesis (MScIng)--University of Stellenbosch, 2007. / Bibliography. Also available via the Internet.
|
77 |
Superconductivity in metallic glasses (FexNi1-xZr2) from transport and magnetization properties to vortex dynamics /Lefebvre, Josianne. January 1900 (has links)
Thesis (Ph.D.). / Written for the Centre for the Physics of Materials, Dept. of Physics. Title from title page of PDF (viewed 2008/02/12). Includes bibliographical references.
|
78 |
Competing orders in s-wave and p-wave superconductors /Li, Qi, January 2008 (has links)
Thesis (Ph. D.)--University of Oregon, 2008. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 107-110). Also available online in Scholars' Bank; and in ProQuest, free to University of Oregon users.
|
79 |
Effect of interstitial impurities on the residual resistivity of Niobium thin films /Connell, Justin. January 2008 (has links)
Thesis (Honors)--College of William and Mary, 2008. / Includes bibliographical references (leaves 61-62). Also available via the World Wide Web.
|
80 |
Superconductivity in a 2d semiconductor system with unconventional pairing symmetry inter-band pairing /Killiches, Susanne Judith. January 2006 (has links)
Thesis (M.S.)--Kent State University, 2006. / Title from PDF t.p. (viewed July 9, 2007). Advisor: Khandker Quader. Keywords: superconductor-insulator-transition, semiconductor. Includes bibliographical references (p. 69-70).
|
Page generated in 0.0145 seconds