Magnetic Penetration Depth Analysis of Unconventional Superconductors
Vandervelde, Daniel John
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https://hdl.handle.net/2142/80588
Description
Title
Magnetic Penetration Depth Analysis of Unconventional Superconductors
Author(s)
Vandervelde, Daniel John
Issue Date
2008
Doctoral Committee Chair(s)
Dale Van Harlingen
Department of Study
Physics
Discipline
Physics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Condensed Matter
Language
eng
Abstract
We present magnetic penetration depth measurements on various superconducting materials using a self-inductive, tunnel-diode based oscillator technique down to ∼100 mK. The materials measured consisted of the skutterudites LaRu4Sb12 and LaOs4Sb 12, the heavy fermion superconductor CeIrIn5, a series of materials CeRh1-xIrxIn5, CeCoIn5 with two different dopants, Sn and Cd, and the layered dichalcogenide TiSe2 doped with copper. We seek to study the impact of antiferromagnetism and the presence of a quantum critical point on superconductivity. We also seek to characterize the superconductivity and compare to similar materials. Additionally we seek to study how superconductivity arises from novel methods such as charge density waves.
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