Competing antiferromagnetism in a quasi-2D itinerant ferromagnet: Fe3GeTe2

Jieyu Yi, Houlong Zhuang, Qiang Zou, Zhiming Wu, Guixin Cao, Siwei Tang, S. A. Calder, P. R.C. Kent, David Mandrus, Zheng Gai

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

Fe3GeTe2 is known as an air-stable layered metal with itinerant ferromagnetism with a transition temperature of about 220 K. From our extensive dc and ac magnetic measurements, we have determined that the ferromagnetic layers of Fe3GeTe2 actually order antiferromagnetically along the c-axis below 152 K. The antiferromagnetic state was further substantiated by theoretical calculation to be the ground state. A magnetic structure model was proposed to describe the antiferromagnetic ground state as well as competition between antiferromagnetic and ferromagnetic states. Fe3GeTe2 shares many common features with pnictide superconductors and may be a promising system in which to search for unconventional superconductivity.

Original languageEnglish (US)
Article number011005
Journal2D Materials
Volume4
Issue number1
DOIs
StatePublished - Mar 1 2017
Externally publishedYes

Keywords

  • 2D material
  • Antiferromagnetism
  • Ferromagnet
  • Magnetic force microscopy
  • ac susceptibility

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Competing antiferromagnetism in a quasi-2D itinerant ferromagnet: Fe<sub>3</sub>GeTe<sub>2</sub>'. Together they form a unique fingerprint.

  • Cite this

    Yi, J., Zhuang, H., Zou, Q., Wu, Z., Cao, G., Tang, S., Calder, S. A., Kent, P. R. C., Mandrus, D., & Gai, Z. (2017). Competing antiferromagnetism in a quasi-2D itinerant ferromagnet: Fe3GeTe2. 2D Materials, 4(1), [011005]. https://doi.org/10.1088/2053-1583/4/1/011005