Critical field of superconducting aluminum as a function of pressure and temperature above 0.3°K
Harris, Erik Preston
This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.
Permalink
https://hdl.handle.net/2142/25687
Description
Title
Critical field of superconducting aluminum as a function of pressure and temperature above 0.3°K
Author(s)
Harris, Erik Preston
Issue Date
1967
Doctoral Committee Chair(s)
Mapother, D.E.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
critical field
superconducting aluminum
low-temperature superconducting electronic specific heat
calorimeter
Language
en
Abstract
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.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
