Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 81, Issue 10, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.81.104710
Keywords
iron-based superconductor; isovalent chemical substitution; BaFe2(As1-xPx)(2); single-crystal growth; transport properties; annealing effect
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Funding
- Strategic International Collaborative Research Program (SICORP) from the Japan Science and Technology Agency
- Japan-China-Korea A3 Foresight Program
- JSPS [22540380]
- Japan Society for the Promotion of Science (JSPS)
- Grants-in-Aid for Scientific Research [22540380] Funding Source: KAKEN
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Sizable single crystals of iron-based high-transition-temperature superconductors, BaFe2(As1-xPx)(2), have been synthesized over an entire x range from 0 to 1. The employment of a Ba2As3/Ba2P3 self-flux method enables us to grow large single crystals (similar to 7 x 7 mm(2)) using a quartz tube, the P content of which is systematically controlled by tuning the As/P mixture ratio of the starting compositions. The post-annealing of the as-grown crystals results in sample quality improvement, evidenced by the increase in superconducting and antiferromagnetic-orthorhombic (AFO) transition temperatures as well as the significant reduction in residual resistivity in the AFO phase in the underdoped regime.
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