Kanagaraj, M. ; Arumugam, S. ; Kumar, Ravhi S. ; Tamil Selvan, N. R. ; Esakki Muthu, S. ; Prakash, J. ; Thakur, Gohil S. ; Yoshino, H. ; Murata, K. ; Matsubayashi, K. ; Uwatoko, Y. ; Sinogeikin, S. ; Cornelius, Andrew ; Ganguli, A. K. ; Zhao, Yusheng (2012) Correlation between superconductivity and structural properties under high pressure of iron pnictide superconductor Ce0.6Y0.4FeAsO0.8F0.2 Applied Physics Letters, 100 (5). Article ID 052601. ISSN 0003-6951
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Official URL: http://aip.scitation.org/doi/abs/10.1063/1.3681805...
Related URL: http://dx.doi.org/10.1063/1.3681805
Abstract
We report here the pressure dependence of the electrical resistivity and magnetic susceptibility of polycrystalline Ce0.6Y0.4FeAsO0.8F0.2 superconductor in the temperature range 4 K to 300 K up to 8 GPa. In-situ high pressure-low temperature x-ray diffraction was performed at 8 K up to 32 GPa using synchrotron x-rays with helium pressure medium. The results show that the applied pressure slightly increases the Tc up to 1 GPa and then it decreases on further pressure increase. The reduction of superconducting transition temperature occurs with a transition to a collapsed tetragonal phase and may be associated with a possible valence change of Ce.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | High Pressure; Superconductivity; Electrical Resistivity; Doping; Superconducting Compounds |
| ID Code: | 111987 |
| Deposited On: | 28 Sep 2017 12:22 |
| Last Modified: | 28 Sep 2017 12:22 |
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