Electron tunneling using STM/STS on iron-based oxypnictides

Yuuki Kawashima; Koichi Ichimura; Toru Kurosawa; Migaku Oda; Satoshi Tanda; Hiroki Takahashi; Hironari Okada; Yoichi Kamihara; Hideo Hosono

doi:10.1016/j.physc.2009.12.066

Electron tunneling using STM/STS on iron-based oxypnictides

Yuuki Kawashima, Koichi Ichimura, Toru Kurosawa, Migaku Oda, Satoshi Tanda, Hiroki Takahashi, Hironari Okada, Yoichi Kamihara, Hideo Hosono

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

We report the electron tunneling study on SmFeAsO_1-xF _x (x = 0, 0.045, 0.046, 0.069) by using low temperature UHV-STM/STS. The superconducting gap and pseudogap structures are observed on x = 0.045, 0.046, 0.069. We also found similar structures on non-superconducting sample of x = 0. The value of 2Δ_sc/kT_c decreases as T _c increases.

Original language	English
Pages (from-to)	S315-S316
Journal	Physica C: Superconductivity and its applications
Volume	470
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.physc.2009.12.066
Publication status	Published - 2010 Dec
Externally published	Yes

Keywords

Iron-based superconductor
Pseudogap
STM/STS
Superconducting gap

ASJC Scopus subject areas

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

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Kawashima, Y., Ichimura, K., Kurosawa, T., Oda, M., Tanda, S., Takahashi, H., Okada, H., Kamihara, Y., & Hosono, H. (2010). Electron tunneling using STM/STS on iron-based oxypnictides. Physica C: Superconductivity and its applications, 470(SUPPL.1), S315-S316. https://doi.org/10.1016/j.physc.2009.12.066

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AU - Kawashima, Yuuki

AU - Ichimura, Koichi

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AU - Oda, Migaku

AU - Tanda, Satoshi

AU - Takahashi, Hiroki

AU - Okada, Hironari

AU - Kamihara, Yoichi

AU - Hosono, Hideo

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KW - STM/STS

KW - Superconducting gap

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