Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/103202
Title: NMR study of magnetic structure and hyperfine interactions in the binary helimagnet FeP
Authors: Gippius, A. A.
Tkachev, A. V.
Zhurenko, S. V.
Mahajan, A. V.
Buttgen, N.
Schaedler, M.
Chernyavskii, I. O.
Morozov, I. V.
Aswartham, S.
Büchner, B.
Moskvin, A. S.
Issue Date: 2020
Publisher: American Physical Society
Citation: NMR study of magnetic structure and hyperfine interactions in the binary helimagnet FeP / A. A. Gippius, A. V. Tkachev, S. V. Zhurenko, et al. — DOI 10.1103/PhysRevB.102.214416 // Physical Review B. — 2020. — Vol. 102. — Iss. 21. — 214416.
Abstract: We report a detailed study of the ground-state helical magnetic structure in monophosphide FeP by means of P31 NMR spectroscopy. We show that the zero-field NMR spectrum of the polycrystalline sample provides strong evidence of an anisotropic distribution of local magnetic fields at the P site with substantially lower anharmonicity than that found at the Fe site by Mössbauer spectroscopy. From field-sweep P31 NMR spectra we conclude that a continuous spin-reorientation transition occurs in an external magnetic field range of 4-7 T, which is also confirmed by specific-heat measurements. We observe two pairs of magnetically inequivalent phosphorus positions resulting in a pronounced four-peak structure of the single crystal P31 NMR spectra characteristic of an incommensurate helimagnetic ground state. We revealed a spatial redistribution of local fields at the P sites caused by Fe spin-reorientation transition in high fields and developed an effective approach to account for it. We demonstrate that all observed P31 spectra can be treated within a model of an isotropic helix of Fe magnetic moments in the (ab)-plane with a phase shift of 36° and 176° between Fe1-Fe3 (Fe2-Fe4) and Fe1-Fe2 (Fe3-Fe4) sites, respectively, in accordance with the neutron scattering data. © 2020 American Physical Society.
Keywords: BINARY ALLOYS
CRYSTAL STRUCTURE
CRYSTALLOGRAPHY
GROUND STATE
IRON
IRON METALLOGRAPHY
MAGNETIC FIELDS
MAGNETIC MOMENTS
NEUTRON SCATTERING
NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY
SINGLE CRYSTALS
SPECIFIC HEAT
THERMAL VARIABLES MEASUREMENT
ANISOTROPIC DISTRIBUTION
EFFECTIVE APPROACHES
EXTERNAL MAGNETIC FIELD
HYPERFINE INTERACTIONS
LOCAL MAGNETIC FIELD
POLYCRYSTALLINE SAMPLES
SPIN REORIENTATION TRANSITIONS
SSBAUER SPECTROSCOPIES
MAGNETIC STRUCTURE
URI: http://hdl.handle.net/10995/103202
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85098224362
PURE ID: 20383250
df763243-41f8-47e8-a9cc-61bb1446c751
ISSN: 24699950
DOI: 10.1103/PhysRevB.102.214416
metadata.dc.description.sponsorship: Supported by RFBR Grant No. 17-52-80036 (A.A.G, S.V.Z., A.V.T.), and by Act 211 Government of the Russian Federation, agreement #02.A03.21.0006, by the Ministry of Education and Science, Project No. FEUZ-2020-0054 (A.S.M.). A.V.M. thanks the Department of Science and Technology (DST), Government of India for financial support through the BRICS project Helimagnets. N.B., M.S., A.A.G., and S.V.Z. acknowledge the support of the DFG via TRR 80 (Augsburg-Munich). I.V.M., S.A., and B.B. thank DFG and RSF for financial support in the frame of the joint DFG-RSF project no. 19-43-04129 “Weyl and Dirac semimetals and beyond -prediction, synthesis and characterization of new semimetals.”
RSCF project card: 19-43-04129
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-85098224362.pdf1,31 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.