Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals
M. V. Talanov
1
,
Adam I. Stash
2
,
Sergey A. Ivanov
3
,
Elena S. Zhukova
4
,
Boris M Nekrasov
4
,
V. S. Stolyarov
5
,
Vladislav I Kozlov
6, 7
,
Maxim Savinov
8
,
Alexander A. Bush
6
Publication type: Journal Article
Publication date: 2022-12-13
scimago Q1
wos Q1
SJR: 1.394
CiteScore: 8.7
Impact factor: 4.6
ISSN: 19487185
PubMed ID:
36512678
Physical and Theoretical Chemistry
General Materials Science
Abstract
Strontium titanate SrTiO3 (STO) is a canonical example of a quantum paraelectric, and its doping with manganese ions unlocks its potential as a quantum multiferroic candidate. However, to date, the specifics of incorporation of the manganese ion into the perovskite lattice and its impact on structure–property relationships are debatable questions. Herein, using high-precision X-ray diffraction of a Mn (2 atom %)-doped STO single crystal, clear fingerprints of the displacement disorder of Mn cations in the perovskite B-sublattice are observed. Moreover, near the temperature of the antiferrodistortive transition, the off-center Mn position splits in two, providing the unequal potential barrier’s distribution for possible local atomic hopping. A link with this was found via analysis of the dielectric response that reveals two Arrhenius-type relaxation processes with similar activation energies (35 and 43 meV) and attempt frequencies (1 × 1011 and ∼1.6 × 1010 Hz), suggesting similar dielectric relaxation mechanisms.
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Citations from 2024:
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Talanov M. V. et al. Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals // Journal of Physical Chemistry Letters. 2022. Vol. 13. No. 50. pp. 11720-11728.
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Talanov M. V., Stash A. I., Ivanov S. A., Zhukova E. S., Gorshunov B. P., Nekrasov B. M., Stolyarov V. S., Kozlov V. I., Savinov M., Bush A. A. Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals // Journal of Physical Chemistry Letters. 2022. Vol. 13. No. 50. pp. 11720-11728.
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TY - JOUR
DO - 10.1021/acs.jpclett.2c03513
UR - https://pubs.acs.org/doi/10.1021/acs.jpclett.2c03513
TI - Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals
T2 - Journal of Physical Chemistry Letters
AU - Talanov, M. V.
AU - Stash, Adam I.
AU - Ivanov, Sergey A.
AU - Zhukova, Elena S.
AU - Gorshunov, Boris P
AU - Nekrasov, Boris M
AU - Stolyarov, V. S.
AU - Kozlov, Vladislav I
AU - Savinov, Maxim
AU - Bush, Alexander A.
PY - 2022
DA - 2022/12/13
PB - American Chemical Society (ACS)
SP - 11720-11728
IS - 50
VL - 13
PMID - 36512678
SN - 1948-7185
ER -
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BibTex (up to 50 authors)
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@article{2022_Talanov,
author = {M. V. Talanov and Adam I. Stash and Sergey A. Ivanov and Elena S. Zhukova and Boris P Gorshunov and Boris M Nekrasov and V. S. Stolyarov and Vladislav I Kozlov and Maxim Savinov and Alexander A. Bush},
title = {Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals},
journal = {Journal of Physical Chemistry Letters},
year = {2022},
volume = {13},
publisher = {American Chemical Society (ACS)},
month = {dec},
url = {https://pubs.acs.org/doi/10.1021/acs.jpclett.2c03513},
number = {50},
pages = {11720--11728},
doi = {10.1021/acs.jpclett.2c03513}
}
Cite this
MLA
Copy
Talanov, M. V., et al. “Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals.” Journal of Physical Chemistry Letters, vol. 13, no. 50, Dec. 2022, pp. 11720-11728. https://pubs.acs.org/doi/10.1021/acs.jpclett.2c03513.