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Pressure-induced superconductivity in Ba0.5Sr0.5Fe2As2.
- Source :
-
Journal of physics. Condensed matter : an Institute of Physics journal [J Phys Condens Matter] 2012 Dec 12; Vol. 24 (49), pp. 495702. Date of Electronic Publication: 2012 Nov 12. - Publication Year :
- 2012
-
Abstract
- High-pressure electrical resistance measurements have been performed on single crystal Ba(0.5)Sr(0.5)Fe(2)As(2) platelets to pressures of 16 GPa and temperatures down to 10 K using designer diamond anvils under quasi-hydrostatic conditions with an insulating steatite pressure medium. The resistance measurements show evidence of pressure-induced superconductivity with an onset transition temperature at ∼31 K and zero resistance at ∼22 K for a pressure of 3.3 GPa. The transition temperature decreases gradually with increasing pressure before completely disappearing for pressures above 12 GPa. The present results provide experimental evidence that a solid solution of two 122-type materials, i.e., Ba(1-x)Sr(x)Fe(2)As(2) (0 < x < 1), can also exhibit superconductivity under high pressure.
Details
- Language :
- English
- ISSN :
- 1361-648X
- Volume :
- 24
- Issue :
- 49
- Database :
- MEDLINE
- Journal :
- Journal of physics. Condensed matter : an Institute of Physics journal
- Publication Type :
- Academic Journal
- Accession number :
- 23148047
- Full Text :
- https://doi.org/10.1088/0953-8984/24/49/495702