Ferromagnetic Cobalt Disulfide: A CVD Pathway Toward High-Quality and Phase-Pure Thin Films

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Jan Lucas Wree - , Ruhr University Bochum (Author)
  • Jean Pierre Glauber - , Ruhr University Bochum (Author)
  • David Zanders - , Ruhr University Bochum, Carleton University (Author)
  • Detlef Rogalla - , Ruhr University Bochum (Author)
  • Malte Becher - , Ruhr University Bochum (Author)
  • Matthew B.E. Griffiths - , Carleton University (Author)
  • Andreas Ostendorf - , Ruhr University Bochum (Author)
  • Seán T. Barry - , Carleton University (Author)
  • Andreas Ney - , Johannes Kepler University Linz (Author)
  • Anjana Devi - , Ruhr University Bochum (Author)

Abstract

Pyrite-Type cobalt disulfide (CoS2), which is one among other stable cobalt sulfide phases, exhibits interesting electronic and magnetic properties. Herein, we demonstrate a tailored metalorganic chemical vapor deposition (MOCVD) pathway for the growth of high-quality ferromagnetic CoS2thin films. The influence of CVD process parameters on growth and quality of the films was investigated by complementary analyses. Superconducting quantum interference device (SQUID) measurements confirmed the existence of pure CoS2with a magnetic moment of 0.85 μBand a Curie temperature of 128(5) K. Our findings could pave the way for large-Area CoS2to be used for different technological applications.

Details

Original languageEnglish
Pages (from-to)3772-3779
Number of pages8
JournalACS applied electronic materials
Volume4
Issue number8
Publication statusPublished - 23 Aug 2022
Peer-reviewedYes
Externally publishedYes

Keywords

Keywords

  • Cobalt disulfide, Ferromagnetism, MOCVD, Raman spectroscopy, SQUID