Coexistence of ferromagnetic and superconducting domains in Co-doped BaFe2 As2 superconductors probed using infrared Faraday measurements
| Autor: | Hao Zeng, J. Cerne, Mumtaz Murat Arik, Hidenori Hiramatsu, Jung-Hun Seo, Payam Taheri, Hikaru Sato, Hui Xing, Hideo Hosono, I.I. Mazin, Alok Mukherjee |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Superconductivity High-temperature superconductivity Materials science Condensed matter physics Field (physics) Infrared Atmospheric temperature range 01 natural sciences Magnetic field law.invention Ferromagnetism law Condensed Matter::Superconductivity 0103 physical sciences 010306 general physics Faraday cage |
| Zdroj: | 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| DOI: | 10.1109/irmmw-thz.2019.8873994 |
| Popis: | We explore the electronic and magnetic properties of superconducting iron pnictide films by probing their infrared Hall conductivity as a function of probe energy (0.1-1.3 eV), temperature (10-300 K) and magnetic field (B = 0-7 T). We find hysteretic behavior in the complex infrared Faraday angle, $\theta_{F}$, at lowB over the entire temperature range. At higher $B, \theta_{\mathrm{F}}$ is linear in B and we observe a peak in the high B -field slope near 50 K, which may be related to the superconducting phase of the films. |
| Databáze: | OpenAIRE |
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