journal article·2021-08-24Open access

Spin Reorientation in Antiferromagnetic Layered FePt5P

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

Abstract

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.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Iron-based superconductors research · Rare-earth and actinide compounds · Inorganic Chemistry and Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States

Department of Chemistry and Chemical Biology, Rutgers University − New Brunswick, Piscataway, New Jersey 08854, United States

Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States

NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States

Materials, Chemical, and Computational Sciences Directorate, National Renewable Energy Laboratory, Golden, Colorado 80401, United States

Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, United States

Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Los Angeles 70803, United States

Funding

Oak Ridge National Laboratory · Arnold and Mabel Beckman Foundation · National Renewable Energy Laboratory · Office of Science · Division of Materials Research

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