Characteristic charge transport in oxygen-deficiency-controlled LnFeAsO1-y (Ln = la and Nd)

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

doi:10.1016/j.physc.2010.01.026

Characteristic charge transport in oxygen-deficiency-controlled LnFeAsO_1-y (Ln = la and Nd)

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

Department of Physics

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

Abstract

We have investigated the transport properties of LnFeAsO_1-y (Ln = La, Nd) over a wide range of doping. When we compare the exponent n of resistivity ρ(T)∼Tn, a marked difference is found between La and Nd system. In the La system with lower TC,ρ(T) is always dominated by a T ₂ term at low temperatures, showing relatively large magnetoresistance. On the other hand, in the Nd system with higher TC,ρ(T) is linear on T with a small magnetoresistance. These results indicate that the carriers are subject to stronger scattering in NdFeAsO1-y, which might be linked to the higher TC.

Original language	English
Pages (from-to)	S324-S325
Journal	Physica C: Superconductivity and its Applications
Volume	470
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.physc.2010.01.026
Publication status	Published - 2010 Dec

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2010.01.026

Cite this

Ishida, S., Nakajima, M., Tomioka, Y., Ito, T., Miyazawa, K., Kito, H., Lee, C. H., Ishikado, M., Shamoto, S. I., Iyo, A., Eisaki, H., Kojima, K. M., & Uchida, S. I. (2010). Characteristic charge transport in oxygen-deficiency-controlled LnFeAsO_1-y (Ln = la and Nd). Physica C: Superconductivity and its Applications, 470(SUPPL.1), S324-S325. https://doi.org/10.1016/j.physc.2010.01.026

@article{b522986ee8d740069e51ab5f7980d097,

title = "Characteristic charge transport in oxygen-deficiency-controlled LnFeAsO1-y (Ln = la and Nd)",

abstract = "We have investigated the transport properties of LnFeAsO1-y (Ln = La, Nd) over a wide range of doping. When we compare the exponent n of resistivity ρ(T)∼Tn, a marked difference is found between La and Nd system. In the La system with lower TC,ρ(T) is always dominated by a T 2 term at low temperatures, showing relatively large magnetoresistance. On the other hand, in the Nd system with higher TC,ρ(T) is linear on T with a small magnetoresistance. These results indicate that the carriers are subject to stronger scattering in NdFeAsO1-y, which might be linked to the higher TC.",

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

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

year = "2010",

month = dec,

doi = "10.1016/j.physc.2010.01.026",

language = "English",

volume = "470",

pages = "S324--S325",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier BV",

number = "SUPPL.1",

}

Ishida, S, Nakajima, M, Tomioka, Y, Ito, T, Miyazawa, K, Kito, H, Lee, CH, Ishikado, M, Shamoto, SI, Iyo, A, Eisaki, H, Kojima, KM & Uchida, SI 2010, 'Characteristic charge transport in oxygen-deficiency-controlled LnFeAsO_1-y (Ln = la and Nd)', Physica C: Superconductivity and its Applications, vol. 470, no. SUPPL.1, pp. S324-S325. https://doi.org/10.1016/j.physc.2010.01.026

TY - JOUR

T1 - Characteristic charge transport in oxygen-deficiency-controlled LnFeAsO1-y (Ln = la and Nd)

AU - Ishida, Shigeyuki

AU - Nakajima, Masamichi

AU - Tomioka, Yasuhide

AU - Ito, Toshimitsu

AU - Miyazawa, Kiichi

AU - Kito, Hijiri

AU - Lee, Chul Ho

AU - Ishikado, Motoyuki

AU - Shamoto, Shin Ichi

AU - Iyo, Akira

AU - Eisaki, Hiroshi

AU - Kojima, Kenji M.

AU - Uchida, Shin Ichi

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

PY - 2010/12

Y1 - 2010/12

N2 - We have investigated the transport properties of LnFeAsO1-y (Ln = La, Nd) over a wide range of doping. When we compare the exponent n of resistivity ρ(T)∼Tn, a marked difference is found between La and Nd system. In the La system with lower TC,ρ(T) is always dominated by a T 2 term at low temperatures, showing relatively large magnetoresistance. On the other hand, in the Nd system with higher TC,ρ(T) is linear on T with a small magnetoresistance. These results indicate that the carriers are subject to stronger scattering in NdFeAsO1-y, which might be linked to the higher TC.

AB - We have investigated the transport properties of LnFeAsO1-y (Ln = La, Nd) over a wide range of doping. When we compare the exponent n of resistivity ρ(T)∼Tn, a marked difference is found between La and Nd system. In the La system with lower TC,ρ(T) is always dominated by a T 2 term at low temperatures, showing relatively large magnetoresistance. On the other hand, in the Nd system with higher TC,ρ(T) is linear on T with a small magnetoresistance. These results indicate that the carriers are subject to stronger scattering in NdFeAsO1-y, which might be linked to the higher TC.

UR - https://www.scopus.com/pages/publications/78649708644

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U2 - 10.1016/j.physc.2010.01.026

DO - 10.1016/j.physc.2010.01.026

M3 - Article

AN - SCOPUS:78649708644

SN - 0921-4534

VL - 470

SP - S324-S325

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - SUPPL.1

ER -

Characteristic charge transport in oxygen-deficiency-controlled LnFeAsO_1-y (Ln = la and Nd)

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