Research output: Contribution to journal › Article › peer-review
Tourmalines pyroelectric effect depending on the chemical composition and cation oxidation state. / Chernyshova, Irina A.; Vereshchagin, Oleg S.; Malyshkina, Olga V.; Goncharov, Aleksey G.; Kasatkin, Igor A.; Murashko, Mikhail N.; Zolotarev, Anatoly A.; Frank-Kamenetskaya, Olga V.
In: Journal of Solid State Chemistry, Vol. 303, 122512, 11.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Tourmalines pyroelectric effect depending on the chemical composition and cation oxidation state
AU - Chernyshova, Irina A.
AU - Vereshchagin, Oleg S.
AU - Malyshkina, Olga V.
AU - Goncharov, Aleksey G.
AU - Kasatkin, Igor A.
AU - Murashko, Mikhail N.
AU - Zolotarev, Anatoly A.
AU - Frank-Kamenetskaya, Olga V.
N1 - Publisher Copyright: © 2021 Elsevier Inc.
PY - 2021/11
Y1 - 2021/11
N2 - Tourmaline (the first natural pyroelectric material discovered) is the most common borosilicate on Earth characterized by a great variety of ionic substitutions at all structural sites. In this work the mosaicity and chemical inhomogeneity of single crystal samples of natural Fe-Mg and synthetic Ni- and Cu-rich tourmalines were characterized by X-ray diffraction (rocking curves, ω – 2θ scanning) and energy-dispersive X-ray spectroscopy. The iron oxidation state (Fe3+/ΣFe) in natural tourmalines was determined by Mӧssbauer spectroscopy. The pyroelectric properties of tourmalines were examined at room temperature by the dynamic pyroelectric measurement method. This approach allowed estimating the primary pyroelectric coefficient with the error smaller than ±0.15 μCm-2K-1. Based on the original and published data, it was shown that one of the main factors determining the pyroelectric properties of tourmaline is the ion oxidation state. It was found that the values of the Na-tourmaline pyroelectric coefficient were inversely proportional to the amount of divalent cations (Mg, Fe) and/or directly proportional to the amount of Al3+. This can be used for the directed synthesis of tourmalines with the required pyroelectric properties.
AB - Tourmaline (the first natural pyroelectric material discovered) is the most common borosilicate on Earth characterized by a great variety of ionic substitutions at all structural sites. In this work the mosaicity and chemical inhomogeneity of single crystal samples of natural Fe-Mg and synthetic Ni- and Cu-rich tourmalines were characterized by X-ray diffraction (rocking curves, ω – 2θ scanning) and energy-dispersive X-ray spectroscopy. The iron oxidation state (Fe3+/ΣFe) in natural tourmalines was determined by Mӧssbauer spectroscopy. The pyroelectric properties of tourmalines were examined at room temperature by the dynamic pyroelectric measurement method. This approach allowed estimating the primary pyroelectric coefficient with the error smaller than ±0.15 μCm-2K-1. Based on the original and published data, it was shown that one of the main factors determining the pyroelectric properties of tourmaline is the ion oxidation state. It was found that the values of the Na-tourmaline pyroelectric coefficient were inversely proportional to the amount of divalent cations (Mg, Fe) and/or directly proportional to the amount of Al3+. This can be used for the directed synthesis of tourmalines with the required pyroelectric properties.
KW - Tourmaline
KW - Pyroelectric effect
KW - Crystal chemistry
KW - Ion oxidation state
KW - Crystal chemistry
KW - Dynamic pyroelectric measurement method
KW - Ion oxidation state
KW - Pyroelectric effect
KW - Tourmaline
KW - “Composition - structure - properties” correlations
UR - http://www.scopus.com/inward/record.url?scp=85112849062&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/7bc4814c-51db-3cbf-b30c-295684024f82/
U2 - 10.1016/j.jssc.2021.122512
DO - 10.1016/j.jssc.2021.122512
M3 - Article
AN - SCOPUS:85112849062
VL - 303
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
M1 - 122512
ER -
ID: 84592331