Universität zu Köln

Forthaus, M. K., Sengupta, K., Heyer, O., Christensen, N. E., Svane, A., Syassen, K., Khomskii, D. I., Lorenz, T. and Abd-Elmeguid, M. M. (2010). Superconductivity in SnO: A Nonmagnetic Analog to Fe-Based Superconductors? Phys. Rev. Lett., 105 (15). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

We discovered that under pressure SnO with alpha-PbO structure, the same structure as in many Fe-based superconductors, e. g., beta-FeSe, undergoes a transition to a superconducting state for p greater than or similar to 6 GPa with a maximum T-c of 1.4 K at p = 9.3 GPa. The pressure dependence of T-c reveals a domelike shape and superconductivity disappears for p greater than or similar to 16 GPa. It is further shown from band structure calculations that SnO under pressure exhibits a Fermi surface topology similar to that reported for some Fe-based superconductors and that the nesting between the hole and electron pockets correlates with the change of T-c as a function of pressure.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Forthaus, M. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sengupta, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heyer, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Christensen, N. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Svane, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Syassen, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Khomskii, D. I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lorenz, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Abd-Elmeguid, M. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-494455
DOI:	10.1103/PhysRevLett.105.157001
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	105
Number:	15
Date:	2010
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PAIRING SYMMETRY; TEMPERATURE Multiple languages Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/49445