Comparison of temperature and doping dependence of nematic susceptibility near aputative nematic quantum critical point, Figures 1-4 Data
Abstract/Contents
- Abstract
- Strong electronic nematic fluctuations have been discovered near optimal doping for several families of Fe-based superconductors, motivating the search for a possible link between these fluctuations, nematic quantum criticality, and high temperature superconductivity. Here we probe a key prediction of quantum criticality, namely power law dependence of the associated nematic susceptibility as a function of composition and temperature approaching the compositionally-tuned putative quantum critical point. To probe the 'bare' quantum critical point requires suppression of the superconducting state, which we achieve by using large magnetic fields, up to 45 T, while performing elastoresistivity measurements to follow the nematic susceptibility. We performed these measurements for the prototypical electron-doped pnictide, Ba(Fe1−xCox)2As2, over a dense comb of dopings. We find that close to the putative quantum critical point, the nematic susceptibility appears to obey power law behavior over almost a decade of variation in composition, consistent with basic notions of nematic quantum criticality. Paradoxically, however, we also find that the temperature dependence for compositions close to the critical value cannot be described by a single power law. This is surprising as power law scaling in both doping and temperature is expected close to a quantum critical point.
Description
Type of resource | Dataset, text |
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Date created | April 24, 2019 - May 3, 2019 |
Date modified | December 5, 2022 |
Publication date | December 29, 2021 |
Creators/Contributors
Author | Palmstrom, Johanna |
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Author | Walmsley, Philip |
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Author | Straquadine, Joshua |
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Author | Sorensen, Matthew |
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Author | Hannahs, Scott |
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Author | Burns, Dale |
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Research team head | Fisher, Ian |
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Subjects
Subject | Quantum Criticality |
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Subject | Nematicity |
Genre | Data |
Genre | Tabular data |
Genre | Data sets |
Genre | Dataset |
Genre | Tables (data) |
Bibliographic information
Access conditions
- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
- License
- This work is licensed under a Creative Commons Attribution 4.0 International license (CC BY).
Preferred citation
- Preferred citation
- Palmstrom, J., Walmsley, P., Straquadine, J., Sorensen, M., Hannahs, S., Burns, D., and Fisher, I. (2021). Comparison of temperature and doping dependence of nematic susceptibility near aputative nematic quantum critical point, Figures 1-4 Data. Stanford Digital Repository. Available at https://purl.stanford.edu/rh973jh7848
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Stanford Research Data
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