Local structural distortions and their role in superconductivity in SmFeAsO(1-x)F(x) superconductors

dc.contributor.author	Ingle, K.
dc.contributor.author	Priolkar, K.R.
dc.contributor.author	Pal, A.
dc.contributor.author	Awana, V.P.S.
dc.contributor.author	Emura, S.
dc.date.accessioned	2015-06-04T04:37:04Z
dc.date.available	2015-06-04T04:37:04Z
dc.date.issued	2014
dc.identifier.citation	Superconductor Science and Technology. 27(7); 2014; Article No. 075010.	en_US
dc.identifier.uri	http://dx.doi.org/10.1088/0953-2048/27/7/075010
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/3167
dc.description.abstract	EXAFS studies at the As K edge as a function of temperature were carried out in SmFeAsO(1-x)F(x) (x = 0 and 0.2) compounds to understand the role of local structural distortions in superconductivity observed in F-doped compounds. A significant correlation between the thermal variation of local structural parameters such as anion height and superconducting onset is found in the fluorinated compounds. Such a variation in anion height is absent in the non-superconducting compound. An increase in the Fe-As bond distance just below the superconducting onset temperature indicates a similarity between the distortions observed in the high-T cuprates and these Fe-based superconductors.	en_US
dc.publisher	IOP Publishing	en_US
dc.subject	Physics	en_US
dc.title	Local structural distortions and their role in superconductivity in SmFeAsO(1-x)F(x) superconductors	en_US
dc.type	Journal article	en_US
dc.identifier.impf	y