Doping effect on the carrier scattering in iron-pnictide superconductors studied by charge transport

Shigeyuki Ishida; Masamichi Nakajima; Motoyuki Ishikado; Yasuhide Tomioka; Toshimitsu Ito; Kiichi Miyazawa; Chul Ho Lee; Hijiri Kito; Shin Ichi Shamoto; Akira Iyo; Hiroshi Eisaki; Kenji M. Kojima; Teruhisa Kakeshita; Shin Ichi Uchida

doi:10.1016/j.jpcs.2010.10.054

Doping effect on the carrier scattering in iron-pnictide superconductors studied by charge transport

Shigeyuki Ishida, Masamichi Nakajima, Motoyuki Ishikado, Yasuhide Tomioka, Toshimitsu Ito, Kiichi Miyazawa, Chul Ho Lee, Hijiri Kito, Shin Ichi Shamoto, Akira Iyo, Hiroshi Eisaki, Kenji M. Kojima, Teruhisa Kakeshita, Shin Ichi Uchida

Department of Physics

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Abstract

In order to reveal the role of carrier doping in the iron-based superconductors, we investigated the transport properties of the oxygen-deficient iron-arsenides LnFeAsO_1-y (Ln=La, Ce, Pr and Nd) over a wide doping range. We found that the effect of doping in this system is mainly on the carrier scattering rather than carrier density, quite distinct from that in high-T_c cuprates. In the case of La system with lower T_c, the low temperature resistivity is dominated by T² term and fairly large magnetoresistance is observed. On the other hand, in the Nd system with higher T_c, carriers are subject to stronger scattering showing nearly T-linear resistivity and small magnetoresistance. Such strong scattering appears intimately correlated with high-T_c superconductivity in the iron-based system.

Original language	English
Pages (from-to)	407-409
Number of pages	3
Journal	Journal of Physics and Chemistry of Solids
Volume	72
Issue number	5
DOIs	https://doi.org/10.1016/j.jpcs.2010.10.054
Publication status	Published - 2011 May

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1016/j.jpcs.2010.10.054

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Ishida, S., Nakajima, M., Ishikado, M., Tomioka, Y., Ito, T., Miyazawa, K., Lee, C. H., Kito, H., Shamoto, S. I., Iyo, A., Eisaki, H., Kojima, K. M., Kakeshita, T., & Uchida, S. I. (2011). Doping effect on the carrier scattering in iron-pnictide superconductors studied by charge transport. Journal of Physics and Chemistry of Solids, 72(5), 407-409. https://doi.org/10.1016/j.jpcs.2010.10.054

@article{f03d16fc8ddc4c63b2ced79715d41e83,

title = "Doping effect on the carrier scattering in iron-pnictide superconductors studied by charge transport",

abstract = "In order to reveal the role of carrier doping in the iron-based superconductors, we investigated the transport properties of the oxygen-deficient iron-arsenides LnFeAsO1-y (Ln=La, Ce, Pr and Nd) over a wide doping range. We found that the effect of doping in this system is mainly on the carrier scattering rather than carrier density, quite distinct from that in high-Tc cuprates. In the case of La system with lower Tc, the low temperature resistivity is dominated by T2 term and fairly large magnetoresistance is observed. On the other hand, in the Nd system with higher Tc, carriers are subject to stronger scattering showing nearly T-linear resistivity and small magnetoresistance. Such strong scattering appears intimately correlated with high-Tc superconductivity in the iron-based system.",

author = "Shigeyuki Ishida and Masamichi Nakajima and Motoyuki Ishikado and Yasuhide Tomioka and Toshimitsu Ito and Kiichi Miyazawa and Lee, {Chul Ho} and Hijiri Kito and Shamoto, {Shin Ichi} and Akira Iyo and Hiroshi Eisaki and Kojima, {Kenji M.} and Teruhisa Kakeshita and Uchida, {Shin Ichi}",

note = "Funding Information: We would like to acknowledge K. Kuroki, H. Aoki, S. Ishibashi, and T. Miyake for helpful discussions. This work was supported by the Global Centers of Excellence Program and A3 Foresight Program from the Japan Society for the Promotion of Science and Transformative Research-Project on Iron Pnictides from the Japan Science and Technology Agency .",

year = "2011",

month = may,

doi = "10.1016/j.jpcs.2010.10.054",

language = "English",

volume = "72",

pages = "407--409",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Limited",

number = "5",

}

Ishida, S, Nakajima, M, Ishikado, M, Tomioka, Y, Ito, T, Miyazawa, K, Lee, CH, Kito, H, Shamoto, SI, Iyo, A, Eisaki, H, Kojima, KM, Kakeshita, T & Uchida, SI 2011, 'Doping effect on the carrier scattering in iron-pnictide superconductors studied by charge transport', Journal of Physics and Chemistry of Solids, vol. 72, no. 5, pp. 407-409. https://doi.org/10.1016/j.jpcs.2010.10.054

TY - JOUR

T1 - Doping effect on the carrier scattering in iron-pnictide superconductors studied by charge transport

AU - Ishida, Shigeyuki

AU - Nakajima, Masamichi

AU - Ishikado, Motoyuki

AU - Tomioka, Yasuhide

AU - Ito, Toshimitsu

AU - Miyazawa, Kiichi

AU - Lee, Chul Ho

AU - Kito, Hijiri

AU - Shamoto, Shin Ichi

AU - Iyo, Akira

AU - Eisaki, Hiroshi

AU - Kojima, Kenji M.

AU - Kakeshita, Teruhisa

AU - Uchida, Shin Ichi

N1 - Funding Information: We would like to acknowledge K. Kuroki, H. Aoki, S. Ishibashi, and T. Miyake for helpful discussions. This work was supported by the Global Centers of Excellence Program and A3 Foresight Program from the Japan Society for the Promotion of Science and Transformative Research-Project on Iron Pnictides from the Japan Science and Technology Agency .

PY - 2011/5

Y1 - 2011/5

N2 - In order to reveal the role of carrier doping in the iron-based superconductors, we investigated the transport properties of the oxygen-deficient iron-arsenides LnFeAsO1-y (Ln=La, Ce, Pr and Nd) over a wide doping range. We found that the effect of doping in this system is mainly on the carrier scattering rather than carrier density, quite distinct from that in high-Tc cuprates. In the case of La system with lower Tc, the low temperature resistivity is dominated by T2 term and fairly large magnetoresistance is observed. On the other hand, in the Nd system with higher Tc, carriers are subject to stronger scattering showing nearly T-linear resistivity and small magnetoresistance. Such strong scattering appears intimately correlated with high-Tc superconductivity in the iron-based system.

AB - In order to reveal the role of carrier doping in the iron-based superconductors, we investigated the transport properties of the oxygen-deficient iron-arsenides LnFeAsO1-y (Ln=La, Ce, Pr and Nd) over a wide doping range. We found that the effect of doping in this system is mainly on the carrier scattering rather than carrier density, quite distinct from that in high-Tc cuprates. In the case of La system with lower Tc, the low temperature resistivity is dominated by T2 term and fairly large magnetoresistance is observed. On the other hand, in the Nd system with higher Tc, carriers are subject to stronger scattering showing nearly T-linear resistivity and small magnetoresistance. Such strong scattering appears intimately correlated with high-Tc superconductivity in the iron-based system.

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DO - 10.1016/j.jpcs.2010.10.054

M3 - Article

AN - SCOPUS:79955773744

SN - 0022-3697

VL - 72

SP - 407

EP - 409

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 5

ER -

Doping effect on the carrier scattering in iron-pnictide superconductors studied by charge transport

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