Importance of structural distortions in enhancement of transition temperature in FeSe(1-x)Te(x) superconductors

Ingle, K.E.; Priolkar, K.R.; Pal, A.; Zargar, R.A.; Awana, V.P.S.; Emura, S.

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dc.contributor.author	Ingle, K.E.
dc.contributor.author	Priolkar, K.R.
dc.contributor.author	Pal, A.
dc.contributor.author	Zargar, R.A.
dc.contributor.author	Awana, V.P.S.
dc.contributor.author	Emura, S.
dc.date.accessioned	2015-10-06T07:40:19Z
dc.date.available	2015-10-06T07:40:19Z
dc.date.issued	2015
dc.identifier.citation	Superconductor Science and Technology. 28; 2015; Article ID 015015.	en_US
dc.identifier.uri	http://dx.doi.org/10.1088/0953-2048/28/1/015015
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/4127
dc.description.abstract	Temperature (12 K less than or equal to T less than or equal to 300 K) dependent extended x-ray absorption fine structure (EXAFS) studies at the Fe K edge in FeSe(1-x)Te(x) (x = 0, 0.5 and 1.0) compounds have been carried out to understand the reasons for the increase in TC upon Te doping in FeSe. While local distortions are present near superconducting onset in FeSe and FeSe(0.5)Te(0.5), they seem to be absent in non-superconducting FeTe. Of crucial importance is the variation of anion height. In FeSe(0.5)Te(0.5), near the superconducting onset, the two heights, h(Fe-Se) and h(Fe-Te) show a nearly opposite behaviour. These changes indicate a possible correlation between Fe-chalcogen hybridization and the superconducting transition temperature in these Fe-chalcogenides.	en_US
dc.publisher	IOP Publishing	en_US
dc.subject	Physics	en_US
dc.title	Importance of structural distortions in enhancement of transition temperature in FeSe(1-x)Te(x) superconductors	en_US
dc.type	Journal article	en_US
dc.identifier.impf	y