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arXiv · 0803.4266

Pressure Effect on the superconducting properties of LaO_{1-x}F_{x}FeAs(x=0.11) superconductor

W. Lu·J. Yang·X. L. Dong·Z. A. Ren·G. C. Che·Z. X. Zhao
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Abstract

Diamagnetic susceptibility measurements under high hydrostatic pressure (up to 1.03 GPa) were carried out on the newly discovered Fe-based superconductor LaO_{1-x}F_{x}FeAs(x=0.11). The transition temperature T_c, defined as the point at the maximum slope of superconducting transition, was enhanced almost linearly by hydrostatic pressure, yielding a dT_c/dP of about 1.2 K/GPa. Differential diamagnetic susceptibility curves indicate that the underlying superconducting state is complicated. It is suggested that pressure plays an important role on pushing low T_c superconducting phase toward the main (optimal) superconducting phase.

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W. Lu, J. Yang, X. L. Dong, Z. A. Ren, G. C. Che, Z. X. Zhao. 2008-04-25. Pressure Effect on the superconducting properties of LaO_{1-x}F_{x}FeAs(x=0.11) superconductor. https://doi.org/10.1088/1367-2630%2F10%2F6%2F063026

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