Evidence for monoclinic crystal structure and negative thermal expansion below magnetic transition temperature in Pb (Fe12 Nb12) O3

dc.contributor.author	Singh, S.P.
dc.contributor.author	Pandey, D.
dc.contributor.author	Yoon, S.
dc.contributor.author	Baik, S.
dc.contributor.author	Shin, N.
dc.date.accessioned	2021-09-22T10:24:47Z
dc.date.available	2021-09-22T10:24:47Z
dc.date.issued	2007
dc.description.abstract	The existing controversy about the room temperature structure of multiferroic Pb (Fe12 Nb12) O3 is settled using synchrotron powder x-ray diffraction data. Results of Rietveld refinements in the temperature range of 300-12 K reveal that the structure remains monoclinic in the Cm space group down to 12 K, but the lattice parameters show anomalies at the magnetic transition temperature (TN) due to spin-lattice coupling. The lattice volume exhibits negative thermal expansion behavior, with α=-4.64× 10-6 K-1, below TN.	en_US
dc.description.sponsorship	Applied Physics Letters	en_US
dc.identifier.issn	00036951
dc.identifier.uri	https://idr-sdlib.iitbhu.ac.in/handle/123456789/1711
dc.language.iso	en	en_US
dc.relation.ispartofseries	Issue 24;Volume 90
dc.subject	Crystal structure;	en_US
dc.subject	Superconducting transition temperature;	en_US
dc.subject	Magnetic transition temperature;	en_US
dc.subject	Monoclinic crystal structure;	en_US
dc.subject	Lead alloys;	en_US
dc.title	Evidence for monoclinic crystal structure and negative thermal expansion below magnetic transition temperature in Pb (Fe12 Nb12) O3	en_US
dc.type	Article	en_US

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