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Ranjan, Rajeev; Senyshyn, Anatoliy; Vashook, Vladimir; Niewa, Rainer; Boysen, Hans; Frey, Friedrich (2007): Structural stability of conducting oxide CaRuO3 at high temperatures. In: Applied Physics Letters, Vol. 90, Nr. 25
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Abstract

The structure of conducting oxide CaRuO3 has been studied as a functionof temperature up to 1300 degrees C by neutron powder diffraction. Thestructure is found to remain orthorhombic, in space group Pbnm, over theentire temperature range. The structural rigidity is evidenced by thefact that the octahedral tilt angles change by only similar to 3 degreesover the entire temperature range. The absence of any structural phasetransition in this temperature range and retention of its conductingproperties make CaRuO3 more useful compared to its counterpart SrRuO3with regard to its application as metallic-interface/electrode/substratematerial in epitaxial thin film devices to be used at high temperatures.(c) 2007 American Institute of Physics.