• Magnetic and structural studies of Sc containing ruthenate double perovskites A2ScRuO6 (A = Ba, Sr). 

      Kayser, Paula; Injac, Sean; Ranjbar, Ben; Kennedy, Brendan J; Avdeev, Maxim; Yamaura, Kazunari
      Published 2017-01-01
      Ruthenium containing double perovskites A2ScRuO6 have been synthesized as polycrystalline powders and structurally characterized using a combination of synchrotron X-ray and neutron powder diffraction methods. When A = ...
      Open Access
      Article
    • Spin-orbit coupling controlled ground state in the Ir(V) perovskites A2ScIrO6 (A = Ba or Sr) 

      Kayser, Paula; Kennedy, Brendan J; Ranjbar, Ben; Kimpton, Justin; Avdeev, Maxim
      Published 2017-01-01
      The structural and magnetic properties of the two Ir(V) perovskites Ba2ScIrO6 and Sr2ScIrO6 have been established. The structures were refined using a combined neutron and Synchrotron data set. At room temperature the ...
      Open Access
      Article
    • Stability and range of the type II Bi1-xWxO1.5+1.5x solid solution 

      Wind, Julia; Kayser, Paula; Zhang, Zhaoming; Radosavljevic Evans, Ivana; Ling, Chris D
      Published 2017-01-01
      We have established the stability and range of the cubic type II phase of Bi1-xWxO1.5+1.5x using a combination of X-ray diffraction, neutron diffraction and X-ray absorption spectroscopy. Type II is a high temperature ...
      Open Access
      Article
    • Structural and magnetic properties of the osmium double perovskites Ba2-xSrxYOsO6 

      Kayser, Paula; Injac, Sean; Kennedy, Brendan J; Vogt, Thomas; Avdeev, Maxim; Maynard-Casely, Helen; Zhaoming, Zhang
      Published 2017-01-01
      The crystal and magnetic structures of double perovskites of the type Ba2-xSrxYOsO6 have been studied by synchrotron X-ray and neutron powder diffraction methods, bulk magnetic susceptibility measurements and X-ray absorption ...
      Open Access
      Article
    • Structure and Magnetism in Sr1-xAxTcO3 Perovskites. The importance of the A-site cation. 

      Reynolds, Emily; Avdeev, Maxim; Thorogood, Gordon J; Poineau, Frederic; Czerwinski, Kenneth R; Kimpton, Justin A; Yu, Michelle; Kayser, Paula; Kennedy, Brendan J
      Published 2017-01-01
      The Sr1-xBaxTcO3 (x = 0, 0.1, 0.2) oxides were prepared and their solid-state and magnetic structure studied as a function of the temperature by x-ray and neutron powder diffraction. The refined Tc moments at room temperature ...
      Open Access
      Article
    • 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, Masashi
      Published 2017-01-01
      The 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 Access
      Article