| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Iida, Kazumasa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2022Microstructure, pinning properties, and aging of CSD-grown SmBa$_2$Cu$_3$O$_{7−δ}$ films with and without BaHfO$_3$ nanoparticlescitations
- 2021Nanoscale Texture and Microstructure in a NdFeAs(O,F)/IBAD-MgO Superconducting Thin Film with Superior Critical Current Properties
- 2021High J$_{c}$ and low anisotropy of hydrogen doped NdFeAsO superconducting thin film
- 2018Universal scaling behavior of the upper critical field in strained FeSe0.7Te0.3 thin filmscitations
- 2017The influence of the in-plane lattice constant on the superconducting transition temperature of FeSe0.7Te0.3 thin films
- 2016Hall-plot of the phase diagram for Ba(Fe1-xCox)2As2citations
- 2016Hall-plot of the phase diagram for Ba(Fe1−xCox)2As2
- 2015Influence of substrate type on transport properties of superconducting FeSe 0.5 Te 0.5 thin filmscitations
- 2015High field superconducting properties of Ba(Fe1-xCox)2As2 thin films
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document
Hall-plot of the phase diagram for Ba(Fe1-xCox)2As2
Abstract
The Hall effect is a powerful tool for investigating carrier type and density. For single-band materials, the Hall coefficient is traditionally expressed simply by $R_H^{-1} = -en$, where $e$ is the charge of the carrier, and $n$ is the concentration. However, it is well known that in the critical region near a quantum phase transition, as it was demonstrated for cuprates and heavy fermions, the Hall coefficient exhibits strong temperature and doping dependencies, which can not be described by such a simple expression, and the interpretation of the Hall coefficient for Fe-based superconductors is also problematic. Here, we investigate thin films of Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ with compressive and tensile in-plane strain in a wide range of Co doping. Such in-plane strain changes the band structure of the compounds, resulting in various shifts of the whole phase diagram as a function of Co doping. We show that the resultant phase diagrams for different strain states can be mapped onto a single phase diagram with the Hall number. This universal plot is attributed to the critical fluctuations in multiband systems near the antiferromagnetic transition, which may suggest a direct link between magnetic and superconducting properties in the BaFe$_2$As$_2$ system. ; Comment: Accepted for publication in Scientific Reports, 6 main figures plus Supplemental Information (8 figures)