TY - JOUR
T1 - Pressure-induced shift of Tc in KxSr 1-xFe2As2 (x=0.2,0.4,0.7)
T2 - Analogy to the high-Tc cuprate superconductors
AU - Gooch, Melissa
AU - Lv, Bing
AU - Lorenz, Bernd
AU - Guloy, Arnold M.
AU - Chu, Ching Wu
PY - 2008/11/25
Y1 - 2008/11/25
N2 - The systematic pressure shifts of Tc were investigated in the whole phase diagram of the FeAs-based superconducting compound K xSr1-xFe2As2. Different regions, arising from corresponding responses of Tc to pressure (dT c/dp>0, ≃0, or <0), can be clearly distinguished. This reveals an interesting similarity of the FeAs superconductors and the high-Tc cuprates. This behavior is a manifestation of the layered structure of the FeAs compounds and the pressure-induced charge transfer between the (Fe2As2) and (K/Sr) layers. The coexistence of superconductivity and spin-density wave behavior were also observed, and the pressure effects on the latter is explored.
AB - The systematic pressure shifts of Tc were investigated in the whole phase diagram of the FeAs-based superconducting compound K xSr1-xFe2As2. Different regions, arising from corresponding responses of Tc to pressure (dT c/dp>0, ≃0, or <0), can be clearly distinguished. This reveals an interesting similarity of the FeAs superconductors and the high-Tc cuprates. This behavior is a manifestation of the layered structure of the FeAs compounds and the pressure-induced charge transfer between the (Fe2As2) and (K/Sr) layers. The coexistence of superconductivity and spin-density wave behavior were also observed, and the pressure effects on the latter is explored.
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U2 - 10.1103/PhysRevB.78.180508
DO - 10.1103/PhysRevB.78.180508
M3 - Article
AN - SCOPUS:57249110731
SN - 1098-0121
VL - 78
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
M1 - 180508
ER -