Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 78, Issue 6, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.78.063705
Keywords
pressure effect; electrical resistivity; iron-based superconductor
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Funding
- Ministry of Education, Culture, Sports, Science and Technology [19340090]
- Specially Promoted Research [17001001]
- Scientific Research on Priority Areas [16076204, 20102005]
- Grants-in-Aid for Scientific Research [16076204, 19340090] Funding Source: KAKEN
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High-pressure resistivity experiments were performed on FeSe0.5Te0.5. The onset temperature of T, (T-c(onset)) increases rapidly from 13.5 to 26.2K upon applying pressure up to 2GPa. Above 2GPa, T-c decreases linearly and the metallic phase was observed at P = 14GPa. The same relationship between normalized T-c and pressure in both FeSe0.5Te0.5 and FeSe suggests a universal pressure dependence in this system. This report presents the first observation of a phase transition from the Superconducting to the metallic phase on the P-T-c phase diagram.
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