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 1
Externally published	Yes

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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

Cite this

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 - Tanda, Satoshi

AU - Takahashi, Hiroki

AU - Okada, Hironari

AU - Kamihara, Yoichi

AU - Hosono, Hideo

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10.1016/j.physc.2009.12.066