Open Access
Terahertz spectroscopy of lead-substituted barium hexaferrites Ba1-xPbxFe12O19
M Y Lukianov
1
,
A. G. Ahmed
2
,
A. A. Bush
3
,
A.S. Prokhorov
1, 4
,
V.B. Anzin
1, 4
,
B.P. Gorshunov
1
,
3
Publication type: Journal Article
Publication date: 2021-07-01
SJR: 0.187
CiteScore: 1.3
Impact factor: —
ISSN: 17426588, 17426596
General Physics and Astronomy
Abstract
Using methods of terahertz time-domain spectroscopy dielectric response of ceramic barium hexaferrites substituted with lead (Ba1-xPbxFe12O19, x = 0.00-0.30) was studied in the frequency range of 3-110 cm1 and at temperatures from 5 to 300 K. Obtained spectra are presented by a rich set of lines of different nature, i.e. excitations associated with electronic transitions within the fine-structure components of Fe2+ ions, A2u soft optical phonon, and ferroelectric-like soft mode. The frequency of the soft mode reveals power-law temperature variation vSM ∼ (T-Tc)025 , which indicates a potential phase transition atrc. Analysis shows that Tc approaches zero for the concentrations x = 0.20-0.25.
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Lukianov M. Y. et al. Terahertz spectroscopy of lead-substituted barium hexaferrites Ba1-xPbxFe12O19 // Journal of Physics: Conference Series. 2021. Vol. 1984. No. 1. p. 12013.
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Lukianov M. Y., Ahmed A. G., Bush A. A., Prokhorov A., Anzin V., Gorshunov B., Alyabyeva L. N. Terahertz spectroscopy of lead-substituted barium hexaferrites Ba1-xPbxFe12O19 // Journal of Physics: Conference Series. 2021. Vol. 1984. No. 1. p. 12013.
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TY - JOUR
DO - 10.1088/1742-6596/1984/1/012013
UR - https://doi.org/10.1088/1742-6596/1984/1/012013
TI - Terahertz spectroscopy of lead-substituted barium hexaferrites Ba1-xPbxFe12O19
T2 - Journal of Physics: Conference Series
AU - Lukianov, M Y
AU - Ahmed, A. G.
AU - Bush, A. A.
AU - Prokhorov, A.S.
AU - Anzin, V.B.
AU - Gorshunov, B.P.
AU - Alyabyeva, L. N.
PY - 2021
DA - 2021/07/01
PB - IOP Publishing
SP - 12013
IS - 1
VL - 1984
SN - 1742-6588
SN - 1742-6596
ER -
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BibTex (up to 50 authors)
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@article{2021_Lukianov,
author = {M Y Lukianov and A. G. Ahmed and A. A. Bush and A.S. Prokhorov and V.B. Anzin and B.P. Gorshunov and L. N. Alyabyeva},
title = {Terahertz spectroscopy of lead-substituted barium hexaferrites Ba1-xPbxFe12O19},
journal = {Journal of Physics: Conference Series},
year = {2021},
volume = {1984},
publisher = {IOP Publishing},
month = {jul},
url = {https://doi.org/10.1088/1742-6596/1984/1/012013},
number = {1},
pages = {12013},
doi = {10.1088/1742-6596/1984/1/012013}
}
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MLA
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Lukianov, M. Y., et al. “Terahertz spectroscopy of lead-substituted barium hexaferrites Ba1-xPbxFe12O19.” Journal of Physics: Conference Series, vol. 1984, no. 1, Jul. 2021, p. 12013. https://doi.org/10.1088/1742-6596/1984/1/012013.