TY - JOUR
T1 - Zero-resistance superconducting phase in BaFe2 As2 under high pressure
AU - Ishikawa, Fumihiro
AU - Eguchi, Naoya
AU - Kodama, Michihiro
AU - Fujimaki, Koji
AU - Einaga, Mari
AU - Ohmura, Ayako
AU - Nakayama, Atsuko
AU - Mitsuda, Akihiro
AU - Yamada, Yuh
PY - 2009/5/1
Y1 - 2009/5/1
N2 - A single-crystalline sample of BaFe2 As2 was prepared by high-pressure synthesis, and temperature dependence of resistivity was measured under high pressures of up to 9.0 GPa. Application of 3.0 GPa pressure suppresses the spin-density wave transition and induces superconductivity with the zero resistance state at a superconducting transition temperature Tc =35 K. Tc decreases monotonically with increasing pressure. The appearance of the superconductivity and the disappearance of the anomaly due to the spin-density wave transition occur simultaneously at a pressure of 3.0 GPa. At 3.0 GPa, a superconducting transition is induced in BaFe2 As2; however, the superconductivity is suppressed at higher pressure.
AB - A single-crystalline sample of BaFe2 As2 was prepared by high-pressure synthesis, and temperature dependence of resistivity was measured under high pressures of up to 9.0 GPa. Application of 3.0 GPa pressure suppresses the spin-density wave transition and induces superconductivity with the zero resistance state at a superconducting transition temperature Tc =35 K. Tc decreases monotonically with increasing pressure. The appearance of the superconductivity and the disappearance of the anomaly due to the spin-density wave transition occur simultaneously at a pressure of 3.0 GPa. At 3.0 GPa, a superconducting transition is induced in BaFe2 As2; however, the superconductivity is suppressed at higher pressure.
UR - http://www.scopus.com/inward/record.url?scp=67649407853&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649407853&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.79.172506
DO - 10.1103/PhysRevB.79.172506
M3 - Article
AN - SCOPUS:67649407853
VL - 79
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 17
M1 - 172506
ER -