Inorganic Chemistry

, том 57 , издание 5 , страницы 2773-2781

Mn Self-Doping of Orthorhombic RMnO₃ Perovskites: (R_0.667Mn_0.333)MnO₃ with R = Er–Lu

Тип публикации: Journal Article

Дата публикации: 2018-02-12

American Chemical Society (ACS)

Inorganic Chemistry

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white level БС1

SJR: 0.958

CiteScore: 7.4

Impact factor: 4.7

ISSN: 00201669, 1520510X

DOI: 10.1021/acs.inorgchem.7b03188

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PubMed ID: 29431431

Inorganic Chemistry

Physical and Theoretical Chemistry

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Orthorhombic rare-earth trivalent manganites RMnO3 (R = Er-Lu) were self-doped with Mn to form (R0.667Mn0.333)MnO3 compositions, which were synthesized by a high-pressure, high-temperature method at 6 GPa and about 1670 K from R2O3 and Mn2O3. The average oxidation state of Mn is 3+ in (R0.667Mn0.333)MnO3. However, Mn enters the A site in the oxidation state of 2+, creating the average oxidation state of 3.333+ at the B site. The presence of Mn2+ was confirmed by hard X-ray photoelectron spectroscopy measurements. Crystal structures were studied by synchrotron powder X-ray diffraction. (R0.667Mn0.333)MnO3 crystallizes in space group Pnma with a = 5.50348(2) Å, b = 7.37564(1) Å, and c = 5.18686(1) Å for (Lu0.667Mn0.333)MnO3 at 293 K, and they are isostructural with the parent RMnO3 manganites. Compared with RMnO3, (R0.667Mn0.333)MnO3 exhibits enhanced Néel temperatures of about TN1 = 106-110 K and ferrimagnetic or canted antiferromagnetic properties. Compounds with R = Er and Tm show additional magnetic transitions at about TN2 = 9-16 K. (Tm0.667Mn0.333)MnO3 exhibits a magnetization reversal or negative magnetization effect with a compensation temperature of about 16 K.

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Inorganic Chemistry	Inorganic Chemistry, 4, 25% Inorganic Chemistry 4 публикации, 25%
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Zhang L. et al. Mn Self-Doping of Orthorhombic RMnO3 Perovskites: (R0.667Mn0.333)MnO3 with R = Er–Lu // Inorganic Chemistry. 2018. Vol. 57. No. 5. pp. 2773-2781.

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Zhang L., Gerlach D., Dönni A., Chikyow T., Katsuya Y., TANAKA M., Ueda S., Yamaura K., BELIK A. A. Mn Self-Doping of Orthorhombic RMnO3 Perovskites: (R0.667Mn0.333)MnO3 with R = Er–Lu // Inorganic Chemistry. 2018. Vol. 57. No. 5. pp. 2773-2781.

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TY - JOUR

DO - 10.1021/acs.inorgchem.7b03188

UR - https://doi.org/10.1021/acs.inorgchem.7b03188

TI - Mn Self-Doping of Orthorhombic RMnO3 Perovskites: (R0.667Mn0.333)MnO3 with R = Er–Lu

T2 - Inorganic Chemistry

AU - Zhang, Lei

AU - Gerlach, Dominic

AU - Dönni, Andreas

AU - Chikyow, Toyohiro

AU - Katsuya, Yoshio

AU - TANAKA, Masahiko

AU - Ueda, S.

AU - Yamaura, K

AU - BELIK, A. A.

PY - 2018

DA - 2018/02/12

PB - American Chemical Society (ACS)

SP - 2773-2781

IS - 5

VL - 57

PMID - 29431431

SN - 0020-1669

SN - 1520-510X

ER -

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@article{2018_Zhang,

author = {Lei Zhang and Dominic Gerlach and Andreas Dönni and Toyohiro Chikyow and Yoshio Katsuya and Masahiko TANAKA and S. Ueda and K Yamaura and A. A. BELIK},

title = {Mn Self-Doping of Orthorhombic RMnO3 Perovskites: (R0.667Mn0.333)MnO3 with R = Er–Lu},

journal = {Inorganic Chemistry},

year = {2018},

volume = {57},

publisher = {American Chemical Society (ACS)},

month = {feb},

url = {https://doi.org/10.1021/acs.inorgchem.7b03188},

number = {5},

pages = {2773--2781},

doi = {10.1021/acs.inorgchem.7b03188}

}

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Zhang, Lei, et al. “Mn Self-Doping of Orthorhombic RMnO3 Perovskites: (R0.667Mn0.333)MnO3 with R = Er–Lu.” Inorganic Chemistry, vol. 57, no. 5, Feb. 2018, pp. 2773-2781. https://doi.org/10.1021/acs.inorgchem.7b03188.