Details

Autor(en) / Beteiligte

• Ahmad, D.
• Choi, W.J
• Seo, Y.I.
• Seo, Sehun
• Lee, Sanghan
• Kwon, Yong Seung

Titel

Thermally activated flux flow in superconducting epitaxial FeSe0.6Te0.4 thin film

Ist Teil von

• Results in physics, 2017, Vol.7, p.16-20

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• •Highly quality epitaxial FeSe0.6Te0.4 thin film was grown by the PLD method.•The thermally activated flux flow effect in FeSe0.6Te0.4 thin film is well described by the nonlinear temperature-dependent activation energy.•The evaluated apparent activation energy U0(B) is one order larger than the reported results and showed the double-linearity in both magnetic field directions.•The FeSe0.6Te0.4 thin film shows the anisotropy of 5.6 near Tc and 2D-like superconducting behavior in thermally activated flux flow region. The thermally activated flux flow effect has been studied in epitaxial FeSe0.6Te0.4 thin film grown by a PLD method through the electrical resistivity measurement under various magnetic fields for B//c and B//ab. The results showed that the thermally activated flux flow effect is well described by the nonlinear temperature-dependent activation energy. The evaluated apparent activation energy U0(B) is one order larger than the reported results and showed the double-linearity in both magnetic field directions. Furthermore, the FeSe0.6Te0.4 thin film shows the anisotropy of 5.6 near Tc and 2D-like superconducting behavior in thermally activated flux flow region. In addition, the vortex glass transition and the temperature dependence of the high critical fields were determined.