Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 78, Issue 1, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.78.013709
Keywords
SrFe2As2; superconductivity; pressure; single crystal
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Funding
- Ministry of Education. Culture, Sports, Science and Technology (MEXT) of Japan [19105006, 19204036, 19014016, 20045010]
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We report resistivity measurement under pressure in single crystals of SrFe2As2, which is one of the parent materials of Fe-based superconductors. The structural and anti ferromagnetic (AFM) transition of T-0 = 198 K at ambient pressure is suppressed under pressure, and the ordered phase disappears above P-c similar to 3.6-3.7 GPa. Superconductivity with a sharp transition appears accompanied by the suppression of the AFM state. T-c exhibits a maximum of 34.1 K, which is realized close to the phase boundary at P-c. This T-c is the highest among those. of the stoichiometric Fe-based Superconductors.
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