2011/07/04 by Swee K. Goh, Goh, Swee K., Lina E. Klintberg +18
Business, Management and Accounting · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Intellectual Capital and Performance Analysis #Iron-based superconductors research #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.1107.0689
4 pages, 3 figures
arxiv created 2011/07/04 · openalex publication_date 2011/07/04 · arxiv updated 2011/07/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report measurements of the pressure dependence of the superconducting transition temperature Tc in single crystal samples of the rare-earth doped superconductor Ca0.73La0.27Fe2As2. We track Tc with two techniques, via in-plane resistivity measurements and with a resonant tunnel diode oscillator circuit which is sensitive to the skin depth. We show that initially Tc rises steeply with pressure, forming a superconducting dome with a maximum Tc of ~44 K at 20 kbar. We discuss this observation in the context of other electron-doped iron pnictide superconductors, and conclude that the application of pressure offers an independent way to tune Tc in this system.