caa a22 4500 463217152 CHVBK 20180405153200.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s00269-007-0182-6 doi (NATIONALLICENCE)springer-10.1007/s00269-007-0182-6 Lattice preferred orientation in CaIrO3 perovskite and post-perovskite formed by plastic deformation under pressure [Elektronische Daten] [Ken Niwa, Takehiko Yagi, Kenya Ohgushi, Sébastien Merkel, Nobuyoshi Miyajima, Takumi Kikegawa] Lattice preferred orientations (LPO) developed in perovskite and post-perovskite structured CaIrO3 were studied using the radial X-ray diffraction technique combined with a diamond anvil cell. Starting materials of each phase were deformed from 0.1MPa to 6GPa at room temperature. Only weak LPO was formed in the perovskite phase, whereas strong LPO was formed in the post-perovskite phase with an alignment of the (010) plane perpendicular to the compression axis. The present result suggests that the (010) is a dominant slip plane in the post-perovskite phase and it is in good agreement with the crystallographic prediction, dislocation observations via transmission electron microscopy, and a recent result of simple shear deformation experiment at 1GPa-1,173K. However, the present result contrasts markedly from the results on MgGeO3 and (Mg,Fe)SiO3, which suggested that the (100) or (110) is a dominant slip plane with respect to the post-perovskite structure. Therefore it is difficult to discuss the behavior of the post-perovskite phase in the Earth's deep interior based on existing data of MgGeO3, (Mg,Fe)SiO3 and CaIrO3. The possible sources of the differences between MgGeO3, (Mg,Fe)SiO3 and CaIrO3 are discussed. Springer-Verlag, 2007 Post-perovskite nationallicence CaIrO3 nationallicence High-pressure nationallicence Lattice preferred orientation nationallicence Niwa Ken Institute for Solid State Physics, University of Tokyo, 277-8581, Kashiwa, Japan aut Yagi Takehiko Institute for Solid State Physics, University of Tokyo, 277-8581, Kashiwa, Japan aut Ohgushi Kenya Institute for Solid State Physics, University of Tokyo, 277-8581, Kashiwa, Japan aut Merkel Sébastien Laboratoire de Structure et Propriétés de l'Etat Solide UMR CNRS 8008, Université des Sciences et Technologies de Lille, Bâtiment C6, 59655, Villeneuve d'Ascq, France aut Miyajima Nobuyoshi Bayerisches Geoinstitut, Universität Bayreuth, 95440, Bayreuth, Germany aut Kikegawa Takumi Photon Factory, KEK, 305-0801, Tsukuba, Ibaraki, Japan aut Physics and Chemistry of Minerals Springer-Verlag 34/9(2007-11-01), 679-686 0342-1791 34:9<679 2007 34 269 https://doi.org/10.1007/s00269-007-0182-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00269-007-0182-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Niwa Ken Institute for Solid State Physics, University of Tokyo, 277-8581, Kashiwa, Japan aut NATIONALLICENCE 700 1- Yagi Takehiko Institute for Solid State Physics, University of Tokyo, 277-8581, Kashiwa, Japan aut NATIONALLICENCE 700 1- Ohgushi Kenya Institute for Solid State Physics, University of Tokyo, 277-8581, Kashiwa, Japan aut NATIONALLICENCE 700 1- Merkel Sébastien Laboratoire de Structure et Propriétés de l'Etat Solide UMR CNRS 8008, Université des Sciences et Technologies de Lille, Bâtiment C6, 59655, Villeneuve d'Ascq, France aut NATIONALLICENCE 700 1- Miyajima Nobuyoshi Bayerisches Geoinstitut, Universität Bayreuth, 95440, Bayreuth, Germany aut NATIONALLICENCE 700 1- Kikegawa Takumi Photon Factory, KEK, 305-0801, Tsukuba, Ibaraki, Japan aut NATIONALLICENCE 773 0- Physics and Chemistry of Minerals Springer-Verlag 34/9(2007-11-01), 679-686 0342-1791 34:9<679 2007 34 269 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer