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A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe 2 (As 1– x P x ) 2
Open accessAbstract
A Spike Inside the Dome: The transition temperature T c of iron-based superconductors has a dome-shaped dependence on chemical doping, and the superconductivity that develops underneath may obscure a potential quantum critical point (QCP) residing at absolute zero. With the aim of detecting signatures of this quantum criticality, Hashimoto et al. (p 1554 ; see the Perspective by Sachdev ) measured the penetration depth of the pnictide series BaFe 2 (As 1− x P x ) 2 as a function of x. A sharp peak right around the point where T c has a maximum ( x = 0.30) was observed, implying that the superfluid density diminishes sharply where one would expect it to be the most robust. This unusual finding is interpreted as a sign of a QCP at x = 0.30.
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Cited by
Superconductivity in equimolar Nb-Re-Hf-Zr-Ti high entropy alloy
Marik, S., Varghese, M., Sajilesh, K. P., Singh, D., & Singh, R. P. (2018) · Journal of Alloys and Compounds · doi:10.1016/j.jallcom.2018.08.039 · Cited by 83
Scaling laws for ion irradiation effects in iron-based superconductors
Torsello, D., Gozzelino, L., Gerbaldo, R., Tamegai, T., & Ghigo, G. (2021) · Scientific Reports · doi:10.1038/s41598-021-84699-4 · Cited by 24
Metadata
- Authors
- Hashimoto, K., Cho, K., Shibauchi, T., Kasahara, S., Mizukami, Y., Katsumata, R., Tsuruhara, Y., Terashima, T., Ikeda, H., Tanatar, M. A., Kitano, H., Salovich, N., Giannetta, R. W., Walmsley, P., Carrington, A., Prozorov, R., & Matsuda, Y.
- Venue
- Science
- Published
- 2012-06-22
- Volume
- 336
- Issue
- 6088
- Pages
- 1554-1557
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1970731189
- Cited by
- 321
- References
- 0
- FWCI
- 10.69
- Type
- journal article
- Language
- en
- Open access
- green
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- The paper
- Hashimoto, K., Cho, K., Shibauchi, T., Kasahara, S., Mizukami, Y., Katsumata, R., Tsuruhara, Y., Terashima, T., Ikeda, H., Tanatar, M. A., Kitano, H., Salovich, N., Giannetta, R. W., Walmsley, P., Carrington, A., Prozorov, R., & Matsuda, Y. (2012). A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe 2 (As 1– x P x ) 2. Science. https://doi.org/10.1126/science.1219821
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