Phase transformations in HoMnO 3  oxide at high temperatures

O. M. Fedorova; G. A. Kozhina; L. B. Vedmid’; A. M. Yankin

doi:10.3103/S1062873815060076

Phase transformations in HoMnO₃ oxide at high temperatures

作者: Fedorova O.M.¹, Kozhina G.A.¹, Vedmid’ L.B.¹, Yankin A.M.¹
隶属关系:
1. Institute of Metallurgy, Ural Branch
期: 卷 80, 编号 5 (2016)
页面: 512-514
栏目: Proceedings of the International Interdisciplinary Symposium “Ordering in Minerals and Alloys” OMA-17 and Proceedings of the International Interdisciplinary Symposium “Order, Disorder, and the Properties of Oxides” ODPO-17
URL: https://journals.rcsi.science/1062-8738/article/view/183504
DOI: https://doi.org/10.3103/S1062873815060076
ID: 183504

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详细

Hexagonal holmium manganite is investigated by means of high-temperature X-ray radiography and thermal analysis. At 1200°C, the manganite transitions from the structural P6₃cm modification into the P6₃/mmc form. Mechanoactivation in a high-energy ball mill results in the emergence of the orthorhombic phase of HoMnO₃, which undergoes the Jahn–Teller transition in the temperature range of 1000–1160°C.