Incommensurate magnet iron monophosphide FeP: Crystal growth and characterizationстатья
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Дата последнего поиска статьи во внешних источниках: 16 декабря 2020 г.
Аннотация:We report an optimized chemical vapor transport method that enables the growth of FeP single crystals up to500 mg in mass and 80mm3 in volume. The high quality of the crystals obtained by this method was confirmed1 by means of energy-dispersive x-ray spectroscopy, high-resolution transmission electron microscopy, lowtemperaturesingle-crystal x-ray diffraction, and neutron diffraction experiments. We investigated the transportand magnetic properties of the single crystals, and we calculated the electronic structure of FeP. We show boththeoretically and experimentally that the ground state of FeP is metallic. The examination of the magnetic datareveals antiferromagnetic order below TN = 119K while transport remains metallic in both the paramagnetic andthe antiferromagnetic phase. The analysis of the neutron diffraction data shows an incommensurate magneticstructure with the propagation vector Q = (0, 0,±δ), where δ is close to 0.2. For a full understanding of themagnetic state, further experiments are needed. The successful growth of large high-quality single crystals pavesthe way for further investigations of itinerant magnets with incommensurate spin structures using a wide rangeof experimental tools.