Low temperature x-ray diffraction study of the phase transitions in Sr 1-x Cax TiO3 (x=0.02,0.04): Evidence for ferrielectric ordering

dc.contributor.author	Mishra, S.K.
dc.contributor.author	Pandey, D.
dc.date.accessioned	2021-10-05T04:57:40Z
dc.date.available	2021-10-05T04:57:40Z
dc.date.issued	2009
dc.identifier.issn	00036951
dc.identifier.uri	http://localhost:8080/xmlui/handle/123456789/1744
dc.description.abstract	X-ray diffraction studies on Sr1-x Cax TiO 3 in the temperature range 12 to 300 K reveal cubic to tetragonal (I4/mcm) antiferrodistortive and tetragonal to orthorhombic (Ic2m) polar phase transitions at ∼170 and 225, 32, 34 K, respectively, for x=0.02 and 0.04. It is shown that the polarization in the orthorhombic phase is along the 〈 110 〉 pseudocubic direction, in agreement with the experimentally reported easy polarization direction by Bednorz and Muller. However, in disagreement with them the moments are found to be ferrielectrically coupled in the neighboring (001) planes that is responsible for the anomalously low values of the spontaneous polarization in the polar phase.	en_US
dc.description.sponsorship	Applied Physics Letters	en_US
dc.language.iso	en	en_US
dc.publisher	American Institute of Physics Inc.	en_US
dc.relation.ispartofseries	Issue 23;Volume 95
dc.subject	Polarization;	en_US
dc.subject	Antiferrodistortive;	en_US
dc.subject	Low temperature X-ray diffraction;	en_US
dc.subject	X-ray diffraction studies;	en_US
dc.title	Low temperature x-ray diffraction study of the phase transitions in Sr 1-x Cax TiO3 (x=0.02,0.04): Evidence for ferrielectric ordering	en_US
dc.type	Article	en_US