Pressure-induced superconductivity in lightly doped RFeAsO1-xFx (R=Sm and Nd)
| العنوان: | Pressure-induced superconductivity in lightly doped RFeAsO1-xFx (R=Sm and Nd) |
|---|---|
| المؤلفون: | K. Miyoshi, A. Shiota, T. Matsuoka, K. Otsuka, S. Nishigori, H. Kitagawa |
| المصدر: | Journal of Physics: Conference Series. 2164:012007 |
| بيانات النشر: | IOP Publishing, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | History, Computer Science Applications, Education |
| الوصف: | We performed the measurements of electrical resistivity (ρ) and dc magnetization (M) as a function of temperature (T) under pressure to investigate whether or not the superconductivity is induced by the application of pressure in lightly doped RFeAsO1-xFx (R=Sm and Nd) using pulse current sintered (PCS) high density polycrystalline specimens. We have successfully observed pressure induced superconductivity with T c of ∼6 K (∼8 K) above ∼4 GPa (∼1 GPa) for R=Sm (R=Nd). An anomaly corresponding to a magnetic phase transition into spin density wave (SDW) state was observed in the ρ(T) curves in the entire pressure range, indicating that the superconducting and SDW states coexist in the T-P phase diagram. Volume fraction of the superconductivity is found to be very small. This is consistent with the coexistence of the superconducting and SDW phases. |
| تدمد: | 1742-6596 1742-6588 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::3aac897a5bb58b840cb211c11b0bffac https://doi.org/10.1088/1742-6596/2164/1/012007 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........3aac897a5bb58b840cb211c11b0bffac |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17426596 17426588 |
|---|