Probing quantum criticality in an iron-based superconductor with symmetry-breaking strain

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Abstract/Contents

Abstract
In this thesis, I study the effect of the symmetry-preserving strain and the orthogonal antisymmetric strain to the critical temperature of the nematic phase transition (Ts) in a prototypical iron-based superconductor, BaFe2As2. The result establishes both strains as effective tuning parameters. This perspective is the utilized to systematically study the effect of these strain to Ts in the cobalt-doping series of BaFe2As2. A power-law behavior of the critical temperature was observed as a function of the combined tuning parameters, which is a linear combination the strains and the cobalt concentration. This provides the first clear evidence for power-law behavior of the critical temperature as a function of non-thermal tuning parameters. Lastly, I proposed an experiment that permits the measurement of the nematic susceptibility while continuously tuning the critical temperature with strain.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Worasaran, Thanapat
Degree supervisor Fisher, Ian R. (Ian Randal)
Thesis advisor Fisher, Ian R. (Ian Randal)
Thesis advisor Hwang, Harold Yoonsung, 1970-
Thesis advisor Kivelson, Steven
Degree committee member Hwang, Harold Yoonsung, 1970-
Degree committee member Kivelson, Steven
Associated with Stanford University, Department of Applied Physics

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Thanapat Worasaran.
Note Submitted to the Department of Applied Physics.
Thesis Thesis Ph.D. Stanford University 2021.
Location https://purl.stanford.edu/kk851jj6905

Access conditions

Copyright
© 2021 by Thanapat Worasaran
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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