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

H. Kashiwaya; K. Shirai; T. Matsumoto; H. Shibata; H. Kambara; M. Ishikado; H. Eisaki; A. Iyo; S. Shamoto; I. Kurosawa; S. Kashiwaya

doi:10.1063/1.3427464

C-axis critical current of a PrFeAsO_0.7 single crystal

H. Kashiwaya, K. Shirai, T. Matsumoto, H. Shibata, H. Kambara, M. Ishikado, H. Eisaki, A. Iyo, S. Shamoto, I. Kurosawa, S. Kashiwaya

Department of Physics

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

The c-axis transport properties of a high-pressure synthesized PrFeAsO _0.7 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× 10⁵A/cm² is two orders of magnitude larger than that in Bi₂ Sr_1.6La_0.4Cu _O6+δ. 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_c R_n) product is explained by an inspecular transport in s±-wave pair potential.

Original language	English
Article number	202504
Journal	Applied Physics Letters
Volume	96
Issue number	20
DOIs	https://doi.org/10.1063/1.3427464
Publication status	Published - 2010 May 17

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3427464

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@article{546f0e87c8d54819b13b223f8b368da1,

title = "C-axis critical current of a PrFeAsO0.7 single crystal",

abstract = "The c-axis transport properties of a high-pressure synthesized PrFeAsO 0.7 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× 105A/cm2 is two orders of magnitude larger than that in Bi2 Sr1.6La0.4Cu O6+δ. The appearance of a hysteresis in the current-voltage curve below Tc is the manifestation of the intrinsic Josephson effect similar to that in cuprate superconductors. The suppression of the critical current-normal resistance (Ic Rn) product is explained by an inspecular transport in s±-wave pair potential.",

author = "H. Kashiwaya and K. Shirai and T. Matsumoto and H. Shibata and H. Kambara and M. Ishikado and H. Eisaki and A. Iyo and S. Shamoto and I. Kurosawa and S. Kashiwaya",

note = "Funding Information: We would like to thank Y. Yoshida, S. Kawabata, and Y. Tanaka for fruitful discussion. This work was financially supported by Grant-in-Aid for Scientific Research (Nos. 21710100, 20540392, and 70393725) from JSPS, Japan and by Mitsubishi foundation.",

year = "2010",

month = may,

day = "17",

doi = "10.1063/1.3427464",

language = "English",

volume = "96",

journal = "Applied Physics Letters",

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T1 - C-axis critical current of a PrFeAsO0.7 single crystal

AU - Kashiwaya, H.

AU - Shirai, K.

AU - Matsumoto, T.

AU - Shibata, H.

AU - Kambara, H.

AU - Ishikado, M.

AU - Eisaki, H.

AU - Iyo, A.

AU - Shamoto, S.

AU - Kurosawa, I.

AU - Kashiwaya, S.

N1 - Funding Information: We would like to thank Y. Yoshida, S. Kawabata, and Y. Tanaka for fruitful discussion. This work was financially supported by Grant-in-Aid for Scientific Research (Nos. 21710100, 20540392, and 70393725) from JSPS, Japan and by Mitsubishi foundation.

PY - 2010/5/17

Y1 - 2010/5/17

N2 - The c-axis transport properties of a high-pressure synthesized PrFeAsO 0.7 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× 105A/cm2 is two orders of magnitude larger than that in Bi2 Sr1.6La0.4Cu O6+δ. The appearance of a hysteresis in the current-voltage curve below Tc is the manifestation of the intrinsic Josephson effect similar to that in cuprate superconductors. The suppression of the critical current-normal resistance (Ic Rn) product is explained by an inspecular transport in s±-wave pair potential.

AB - The c-axis transport properties of a high-pressure synthesized PrFeAsO 0.7 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× 105A/cm2 is two orders of magnitude larger than that in Bi2 Sr1.6La0.4Cu O6+δ. The appearance of a hysteresis in the current-voltage curve below Tc is the manifestation of the intrinsic Josephson effect similar to that in cuprate superconductors. The suppression of the critical current-normal resistance (Ic Rn) product is explained by an inspecular transport in s±-wave pair potential.

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SN - 0003-6951

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M1 - 202504

ER -

C-axis critical current of a PrFeAsO_0.7 single crystal

Abstract

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