Spin Reorientation in Antiferromagnetic Layered FePt5P

Xin Gui, Madalynn Marshall, Ranuri Dissanayaka Mudiyanselage, Ryan Klein, Qiang Chen, Qiang Zhang, William Shelton, Haidong Zhou, Craig Brown, Huibo Cao, Martha Greenblatt, Weiwei Xie

Research output: Contribution to journalArticlepeer-review

8 Scopus Citations


FePt5P, a substitutional variant of the anti-CeCoIn5 structure type in the space group P4/mmm, was synthesized by a high-temperature solid-state method and structurally characterized by X-ray diffraction. FePt5P contains layers of FePt12 clusters formed by magnetically active Fe and heavy Pt with strong spin-orbit coupling (SOC); the layers are separated by P atoms. The various Fe-Pt distances in FePt12 clusters generate complex magnetic orders in FePt5P. According to temperature-dependent magnetic and specific heat measurements, FePt5P shows a stripe-type antiferromagnetic order at TN ≈ 90 K, which is also confirmed by resistivity measurements. Moreover, a spin reorientation occurs at ∼74 and ∼68 K in and out of the ab plane based on the specific heat measurements. The temperature-dependent neutron powder diffraction patterns demonstrate the antiferromagnetic order in FePt5P, and the spins orientate up to 58.4° with respect to the c axis at 10 K. First-principles calculations of FePt5P show the band splitting at the Fermi level by strong SOC and the s-d hybridization between P and Fe/Pt electrons enhances the structural stability and affects the magnetic ordering.

Original languageAmerican English
Pages (from-to)3501-3508
Number of pages8
JournalACS Applied Electronic Materials
Issue number8
StatePublished - 24 Aug 2021

Bibliographical note

Publisher Copyright:
© 2021 American Chemical Society.

NREL Publication Number

  • NREL/JA-5900-80078


  • antiferromagnetic spintronics
  • layered magnetism
  • neutron scattering
  • spin reorientation
  • spin-orbit coupling


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