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Magnetic State of Layered Cobalt Chalcogenides Co7Se8 and Co7Te8. / Piskunov, Yu V.; Ogloblichev, V. V.; Sadykov, Almaz F. et al.
In: JETP Letters, Vol. 117, No. 1, 2023, p. 54-60.

Research output: Contribution to journal › Article › peer-review

Harvard

Piskunov, YV, Ogloblichev, VV, Sadykov, AF, Akramov, DF, Smol’nikov, AG, Gerashchenko, AP, Selezneva, NV & Baranov, NV 2023, 'Magnetic State of Layered Cobalt Chalcogenides Co7Se8 and Co7Te8', JETP Letters, vol. 117, no. 1, pp. 54-60. https://doi.org/10.1134/S0021364022602913

APA

Piskunov, Y. V., Ogloblichev, V. V., Sadykov, A. F., Akramov, D. F., Smol’nikov, A. G., Gerashchenko, A. P., Selezneva, N. V., & Baranov, N. V. (2023). Magnetic State of Layered Cobalt Chalcogenides Co7Se8 and Co7Te8. JETP Letters, 117(1), 54-60. https://doi.org/10.1134/S0021364022602913

Vancouver

Piskunov YV, Ogloblichev VV, Sadykov AF, Akramov DF, Smol’nikov AG, Gerashchenko AP et al. Magnetic State of Layered Cobalt Chalcogenides Co7Se8 and Co7Te8. JETP Letters. 2023;117(1):54-60. doi: 10.1134/S0021364022602913

Author

Piskunov, Yu V. ; Ogloblichev, V. V. ; Sadykov, Almaz F. et al. / Magnetic State of Layered Cobalt Chalcogenides Co7Se8 and Co7Te8. In: JETP Letters. 2023 ; Vol. 117, No. 1. pp. 54-60.

BibTeX

@article{54f079da853e4ad5857cf757373bb382,
title = "Magnetic State of Layered Cobalt Chalcogenides Co7Se8 and Co7Te8",
abstract = "The structural and magnetic properties of the Co7Te8 layered compound have been studied for the first time using X-ray diffraction, measurements of the magnetic susceptibility, and nuclear magnetic resonance spectroscopy on Co-59 nuclei. The nuclear magnetic resonance study of Co7Se8 selenide with the same structural type (NiAs) as Co7Te8 has also been performed for the first time. In contrast to Co7Se8, the ordering of vacancies and Co atoms in cation layers is absent in the Co7Te8 compound, and its crystal structure is more planar and is characterized by a significantly smaller ratio c(0)/a(0) compared to Co7Se8 (a(0) and c(0) are the basic lattice parameters of NiAs). The components of the magnetic shift and electric field gradient tensors at the location of Co nuclei have been determined. A significant local charge and spin inhomogeneity of the compounds has been revealed. The hyperfine coupling constant in Co ions has been estimated from the temperature dependences of the shift and susceptibility in Co7Te8. An anisotropic increase in the interatomic distances does not increase the localization of 3d electrons and does not lead to the appearance of magnetic moments on Coatoms in Co7Te8. This compound remains a Pauli paramagnet down to the lowest temperatures.",
author = "Piskunov, {Yu V.} and Ogloblichev, {V. V.} and Sadykov, {Almaz F.} and Akramov, {D. F.} and Smol{\textquoteright}nikov, {A. G.} and Gerashchenko, {A. P.} and Selezneva, {N. V.} and Baranov, {N. V.}",
note = "This work was supported by the Russian Science Foundation (project no. 22-12-00220).",
year = "2023",
doi = "10.1134/S0021364022602913",
language = "English",
volume = "117",
pages = "54--60",
journal = "JETP Letters",
issn = "0021-3640",
publisher = "Pleiades Publishing",
number = "1",

}

RIS

TY - JOUR

T1 - Magnetic State of Layered Cobalt Chalcogenides Co7Se8 and Co7Te8

AU - Piskunov, Yu V.

AU - Ogloblichev, V. V.

AU - Sadykov, Almaz F.

AU - Akramov, D. F.

AU - Smol’nikov, A. G.

AU - Gerashchenko, A. P.

AU - Selezneva, N. V.

AU - Baranov, N. V.

N1 - This work was supported by the Russian Science Foundation (project no. 22-12-00220).

PY - 2023

Y1 - 2023

N2 - The structural and magnetic properties of the Co7Te8 layered compound have been studied for the first time using X-ray diffraction, measurements of the magnetic susceptibility, and nuclear magnetic resonance spectroscopy on Co-59 nuclei. The nuclear magnetic resonance study of Co7Se8 selenide with the same structural type (NiAs) as Co7Te8 has also been performed for the first time. In contrast to Co7Se8, the ordering of vacancies and Co atoms in cation layers is absent in the Co7Te8 compound, and its crystal structure is more planar and is characterized by a significantly smaller ratio c(0)/a(0) compared to Co7Se8 (a(0) and c(0) are the basic lattice parameters of NiAs). The components of the magnetic shift and electric field gradient tensors at the location of Co nuclei have been determined. A significant local charge and spin inhomogeneity of the compounds has been revealed. The hyperfine coupling constant in Co ions has been estimated from the temperature dependences of the shift and susceptibility in Co7Te8. An anisotropic increase in the interatomic distances does not increase the localization of 3d electrons and does not lead to the appearance of magnetic moments on Coatoms in Co7Te8. This compound remains a Pauli paramagnet down to the lowest temperatures.

AB - The structural and magnetic properties of the Co7Te8 layered compound have been studied for the first time using X-ray diffraction, measurements of the magnetic susceptibility, and nuclear magnetic resonance spectroscopy on Co-59 nuclei. The nuclear magnetic resonance study of Co7Se8 selenide with the same structural type (NiAs) as Co7Te8 has also been performed for the first time. In contrast to Co7Se8, the ordering of vacancies and Co atoms in cation layers is absent in the Co7Te8 compound, and its crystal structure is more planar and is characterized by a significantly smaller ratio c(0)/a(0) compared to Co7Se8 (a(0) and c(0) are the basic lattice parameters of NiAs). The components of the magnetic shift and electric field gradient tensors at the location of Co nuclei have been determined. A significant local charge and spin inhomogeneity of the compounds has been revealed. The hyperfine coupling constant in Co ions has been estimated from the temperature dependences of the shift and susceptibility in Co7Te8. An anisotropic increase in the interatomic distances does not increase the localization of 3d electrons and does not lead to the appearance of magnetic moments on Coatoms in Co7Te8. This compound remains a Pauli paramagnet down to the lowest temperatures.

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000953045600008

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85151243419

U2 - 10.1134/S0021364022602913

DO - 10.1134/S0021364022602913

M3 - Article

VL - 117

SP - 54

EP - 60

JO - JETP Letters

JF - JETP Letters

SN - 0021-3640

IS - 1

ER -

ID: 37497057