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Specific features of magnetic order in a multiferroic compound CuCrO2 determined using NMR and NQR data for Cu-63,Cu- 65 nuclei

TitleSpecific features of magnetic order in a multiferroic compound CuCrO2 determined using NMR and NQR data for Cu-63,Cu- 65 nuclei
Publication TypeJournal Article
Year of Publication2017
AuthorsSmolnikov, AG, Ogloblichev, VV, Verkhovskii, SV, Mikhalev, KN, Yakubovskii, AY, Furukawa, Y, Piskunov, YV, Sadykov, AF, Barilo, SN, Shiryaev, SV
JournalPhysics of Metals and Metallography
Volume118
Pagination134-142
Date Published02
Type of ArticleArticle
ISBN Number0031-918X
Accession NumberWOS:000396074100004
Keywordsfrustrated systems, helical magnetic structure, Metallurgical Engineering, multiferroic compounds, nuclear magnetic resonance, resonance, triangular lattice
Abstract

Results of studying the paramagnetic and ordered phases of a CuCrO2 single crystal using nuclear magnetic and nuclear quadrupole resonances on Cu-63,Cu-65 nuclei are presented. The measurements have been carried out in wide ranges of temperature (T = 4.2-300 K) and magnetic-field strength (De = 0-94 kOe), with the magnetic fields being directed along a and c axes of the crystal. The components of the electric-field gradient tensor and the magnetic-shift tensor (K (a,c)) have been determined. The temperature dependences K (a)(H || a) and K (c)(H || c) for the paramagnetic phase are described by the Curie-Weiss law and reproduce the behavior of the magnetic susceptibility (chi(a,c)). The hyperfine field on a copper nucleus has been determined, which is equal to h (hf) (a,c) = 33 kOe/mu B. Below the temperature D cent (N) = 23.6 K, nuclear magnetic resonance and nuclear quadrupole resonance spectra for Cu-63,Cu-65 nuclei have been recorded typical of helical magnetic structures, which are incommensurable with the lattice period.

DOI10.1134/s0031918x17020120
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Complex States

Short TitlePhys. Metals Metallogr.
Alternate JournalPhys. Metals Metallogr.