Synthesis, characterization, Hall effect and THz conductivity of epitaxial thin films of Fe chalcogenide superconductors

A. Maeda, F. Nabeshima, H. Takahashi, T. Okada, Y. Imai, I. Tsukada, M. Hanawa, S. Komiya, A. Ichinose

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Method of synthesis of high-quality thin films of Fe chalcogenides, Fe(Te,Se) and FeSe is studied. By investigating the correlation between T c and structural parameters, it is concluded that a compressive strain is introduced on the films on CaF 2 substrate, which leads to an increase of T c than on oxide substrates. Properties both in the normal state and in the superconducting state are measured. Results are discussed in terms of the possibility of further increasing T c of this material.

Original languageEnglish
Pages (from-to)43-49
Number of pages7
JournalApplied Surface Science
Volume312
DOIs
Publication statusPublished - 2014 Sep 1
Externally publishedYes

Keywords

  • Epitaxial film
  • Fe(Se,Te)
  • Hall effect
  • PLD technique
  • Superconductivity
  • THz conductivity

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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