Browsing by author "Menezes de Oliveira, Andre"
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The impact of anion ordering on octahedra distortion and phase transitions in SrTaO2N and BaTaO2N
Wang, Chun-Hai; Kennedy, Brendan J; Menezes de Oliveira, Andre; Polt, Julia; Knight, Kevin SPublished 2017-01-01In this work, we synthesized BaTaO2N and SrTaO2N using a two-step high temperature solid state reaction method and analysed the structural distortions, relative to the ideal cubic perovskite structure, according to group ...Open AccessArticle -
Thermal Expansion in BaRuO3 Perovskites – an unusual case of bond strengthening at high temperatures
Kayser, Paula; Injac, Sean; Kennedy, Brendan J; Menezes de Oliveira, Andre; Shirako, Yuichi; Hasegawa, MasashiPublished 2017-01-01The temperature dependence of the structures of three polytypes of BaRuO3 have been investigated between room temperature and 1000 °C using high resolution Synchrotron X-ray diffraction. The structural studies reveal a ...Open AccessArticle
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