The proximity effect is investigated for ferromagnet-superconductor bilayers through the suppression of the superconducting critical temperature. We consider both homogeneous and inhomogeneous ferromagnets to study the effect of triplet pairing correlations on the critical temperature. The inhomogeneous ferromagnet we work with is an exchange spring that provides a tunable magnetization profile. The critical temperature is calculated as a function of ferromagnet thickness, spin flip scattering time, and magnetization profile of an exchange spring. An attempt is made to connect the behavior of the critical temperature with that of the superconducting order parameter.
|Commitee:||Gu, Jiyeong, Peterson, Michael|
|School:||California State University, Long Beach|
|Department:||Physics and Astronomy|
|School Location:||United States -- California|
|Source:||MAI 52/03M(E), Masters Abstracts International|
|Keywords:||Critical temperature, Exchange spring, Superconductor|
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