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Paper detail

C-axis critical current of a PrFeAsO0.7 single crystal

The c-axis transport properties of a high-pressure synthesized PrFeAsO0.7 single crystal are studied using s-shaped junctions. Resistivity anisotropy of about 120 detected at 50 K shows the presence of strong anisotropy in the electronic states. The obtained critical current density for the c-axis of 2.9*10^5 A/cm^2 is two orders of magnitude larger than that in Bi2Sr1.6La0.4CuO6+d. The appearance of a hysteresis in the current-voltage curve below T_c is the manifestation of the intrinsic Josephson effect similar to that in cuprate superconductors. The suppression of the critical current-normal resistance (I_cR_n) product is explained by an inspecular transport in s_pm-wave pair potential.

preprint2009arXivOpen access
H. KashiwayaK. ShiraiT. MatsumotoH. ShibataH. KambaraM. IshikadoH. EisakiY. IyoS. ShamotoI. KurosawaS. Kashiwaya
cond-mat.supr-con
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H. KashiwayaK. ShiraiT. MatsumotoH. ShibataH. KambaraM. IshikadoH. EisakiY. IyoS. ShamotoI. KurosawaS. Kashiwaya

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