Pleiades Publishing
JETP Letters
,  volume 109 ,  issue 8 ,  pages 541-545

Formation of an Antiferromagnetic Metal Phase in the Electron-Doped Sr0.98La0.02MnO3 Oxide According to 17O NMR Data

Publication type: Journal Article
Publication date: 2019-04-01
Pleiades Publishing
scimago Q3
wos Q3
SJR: 0.312
CiteScore: 2.3
Impact factor: 1.3
ISSN: 00213640, 10906487
Physics and Astronomy (miscellaneous)
Abstract
The spin density distribution of itinerant electrons, neg, and their effect on pairwise correlations of localized spins S(t2g) of Mn4+ ions in cubic Sr1 − xLaxMnO3 antiferromagnet (x = 0.02, TN = 230 K, G type magnetic structure) is studied experimentally by nuclear magnetic resonance on 17O nuclei. The regions with neg > x, in which the local spin susceptibility of pairs of Mn atoms follows the dependence χ ∼ (T − Θ)−1 with Θ = 20(5) K, indicating the growth of ferromagnetic spin correlations of neighboring magnetic ions in these domains, are found in the paramagnetic phase. The fraction of Mn-O-Mn bonds (neg > x) increases with the decrease in the temperature. The interpenetrating meshes of Mn-O-Mn bonds with different densities of itinerant eg electrons form an antiferromagnetic metal phase below TN. The role of weak localization effects is discussed as the main origin of the magnetic inhomogeneity of the antiferromagnetic metal phase in Sr0.98La0.02MnO3.
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Volkova Z. N. et al. Formation of an Antiferromagnetic Metal Phase in the Electron-Doped Sr0.98La0.02MnO3 Oxide According to 17O NMR Data // JETP Letters. 2019. Vol. 109. No. 8. pp. 541-545.
GOST all authors (up to 50) Copy
Volkova Z. N., VERKHOVSKII S. V., Gerashchenko A. P., Germov A. Yu., Mikhalev K. N., Yakubovskii A., Konstantinova E., Leonidov I. A. Formation of an Antiferromagnetic Metal Phase in the Electron-Doped Sr0.98La0.02MnO3 Oxide According to 17O NMR Data // JETP Letters. 2019. Vol. 109. No. 8. pp. 541-545.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1134/S0021364019080149
UR - https://doi.org/10.1134/S0021364019080149
TI - Formation of an Antiferromagnetic Metal Phase in the Electron-Doped Sr0.98La0.02MnO3 Oxide According to 17O NMR Data
T2 - JETP Letters
AU - Volkova, Z N
AU - VERKHOVSKII, S. V.
AU - Gerashchenko, A P
AU - Germov, A Yu
AU - Mikhalev, K N
AU - Yakubovskii, A.Yu.
AU - Konstantinova, E.I.
AU - Leonidov, I. A.
PY - 2019
DA - 2019/04/01
PB - Pleiades Publishing
SP - 541-545
IS - 8
VL - 109
SN - 0021-3640
SN - 1090-6487
ER -
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@article{2019_Volkova,
author = {Z N Volkova and S. V. VERKHOVSKII and A P Gerashchenko and A Yu Germov and K N Mikhalev and A.Yu. Yakubovskii and E.I. Konstantinova and I. A. Leonidov},
title = {Formation of an Antiferromagnetic Metal Phase in the Electron-Doped Sr0.98La0.02MnO3 Oxide According to 17O NMR Data},
journal = {JETP Letters},
year = {2019},
volume = {109},
publisher = {Pleiades Publishing},
month = {apr},
url = {https://doi.org/10.1134/S0021364019080149},
number = {8},
pages = {541--545},
doi = {10.1134/S0021364019080149}
}
MLA
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Volkova, Z. N., et al. “Formation of an Antiferromagnetic Metal Phase in the Electron-Doped Sr0.98La0.02MnO3 Oxide According to 17O NMR Data.” JETP Letters, vol. 109, no. 8, Apr. 2019, pp. 541-545. https://doi.org/10.1134/S0021364019080149.