2026-09-23T09:51:55Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/25687 2023-07-10 col_2142_8859 col_2142_5131 com_2142_8858 com_2142_234 com_2142_5130

Dissertation / Thesis text Mapother, D.E. Harris, Erik Preston 2011-07-07T15:20:41Z 2011-07-07T15:20:41Z 10000-01-01 1967 The critical field curve of aluminum has been measured from T to 0.30 K, at pressures ranging from 0 to 7200 psi. Using caloric metrically derived values for the low-temperature superconducting electronic specific heat, the data have been extrapolated to T 0, yielding values for Ho and gamma These values and experimental results for Tc are then used to calculate the superconducting electronic entropy and the deviation of the critical field curve from parabolicity over the entire temperature range. The results show excellent agreement with previous calorimetric measurements of the thermodynamic properties of superconducting aluminum. The shape of the reduced critical field curve shows no pressure dependence over the range of pressures used. The dependence of Ho, Tc, and gamma on pressure are in fair agreement with previous work by Gross and Olsen. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-07T15:20:41Z No. of bitstreams: 1 1967_harris.pdf: 2951395 bytes, checksum: 2b8ccb24c433b8a898db1a1a1ae0ca33 (MD5) Made available in DSpace on 2011-07-07T15:20:41Z (GMT). No. of bitstreams: 1 1967_harris.pdf: 2951395 bytes, checksum: 2b8ccb24c433b8a898db1a1a1ae0ca33 (MD5) Previous issue date: 1967 Restriction data tranferred 2014-07-01T11:32:41-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-07T15:20:41Z Item is restricted indefinitely. Thesis U of I Only 6091189 http://hdl.handle.net/2142/25687 en 1967 Erik Preston Harris critical field superconducting aluminum low-temperature superconducting electronic specific heat calorimeter Critical field of superconducting aluminum as a function of pressure and temperature above 0.3°K Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.