Atomic Imaging of Iron-Based Superconductor Parent FeTe Using X-Ray Fluorescence Holography

Benedict Paulus, Shinya Hosokawa, Jens Rüdiger Stellhorn, Benjamin Klee, Katarzyna M. Sowa, Kazutaka Kudo, Naoki Nishimoto, Hiromi Ota, Minoru Nohara, Marc de Boissieu, Nils Blanc, Nathalie Boudet, Wolf Christian Pilgrim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The novel technique of X-Ray Fluorescence Holography (XFH) is used to investigate the structure of the Fe-based high temperature superconductor parent FeTe around Fe as the emitter atom. Holograms of an FeTe single crystal are recorded at several energies above the Fe K edge. The data are analyzed using the scattering pattern extraction algorithm SPEA-L1. The reconstruction of the atomic images on the Fe plane yields unit cell parameters different from those obtained by X-ray diffraction (XRD) measurements. The Te height is slightly higher than the XRD data, suggesting an effect of the excess Fe atoms in the crystal.

Original languageEnglish
Article number1800200
JournalPhysica Status Solidi (B) Basic Research
Volume255
Issue number11
DOIs
Publication statusPublished - Nov 2018

Keywords

  • X-ray fluorescence holography
  • crystal structure
  • iron-based superconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Paulus, B., Hosokawa, S., Stellhorn, J. R., Klee, B., Sowa, K. M., Kudo, K., Nishimoto, N., Ota, H., Nohara, M., de Boissieu, M., Blanc, N., Boudet, N., & Pilgrim, W. C. (2018). Atomic Imaging of Iron-Based Superconductor Parent FeTe Using X-Ray Fluorescence Holography. Physica Status Solidi (B) Basic Research, 255(11), [1800200]. https://doi.org/10.1002/pssb.201800200