Enhanced superconducting properties in FeCr(x)Se
DSpace at IIT Bombay
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Title |
Enhanced superconducting properties in FeCr(x)Se
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Creator |
YADAV, AK
THAKUR, AD TOMY, CV |
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Subject |
PHASE-DIAGRAM
FESE TEMPERATURE PRESSURE Superconductivity X-ray diffraction Magnetization Transport |
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Description |
We report an enhancement of the superconducting transition temperature (T(c)) when chromium (Cr) is substituted in excess at the iron (Fe) site (FeCr(x)Se, x = 0.01, 0.02 and 0.03). There is a corresponding increase in the superconducting volume fraction with T(c) attaining a value of 11.2 K on 2% Cr substitution when compared to a T(c) of 8.5 K for the conventional tetragonal Fe-excess sample Fe(1+x)Se. The results point to the role of chemical pressure (introduced via ionic size variation at the Fe site upon Cr substitution in excess) on superconducting properties. (C) 2011 Elsevier Ltd. All rights reserved.
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Publisher |
PERGAMON-ELSEVIER SCIENCE LTD
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Date |
2012-06-26T08:33:09Z
2012-06-26T08:33:09Z 2011 |
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Type |
Article
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Identifier |
SOLID STATE COMMUNICATIONS,151(7)557-560
0038-1098 http://dx.doi.org/10.1016/j.ssc.2011.01.010 http://dspace.library.iitb.ac.in/jspui/handle/100/14191 |
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Language |
English
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