Two-band superconductivity in LaFeAsO0.89F0.11 at very high magnetic fields

F. Hunte (), J. Jaroszynski, A. Gurevich, D. C. Larbalestier, R. Jin, A. S. Sefat, M. A. McGuire, B. C. Sales, D. K. Christen and D. Mandrus
Additional contact information
F. Hunte: National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA
J. Jaroszynski: National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA
A. Gurevich: National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA
D. C. Larbalestier: National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA
R. Jin: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
A. S. Sefat: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
M. A. McGuire: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
B. C. Sales: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
D. K. Christen: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
D. Mandrus: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

Nature, 2008, vol. 453, issue 7197, 903-905

Abstract: Oxypnictide superconductors: Behaviour in very high magnetic fields The synthesis of the novel superconductor LaFeAsO0.89F0.11 with transition temperature Tc ∼ 26 K has been quickly followed by reports of even higher Tcs. These discoveries have generated much interest in the mechanisms and manifestations of unconventional superconductivity in the family of doped quaternary layered oxypnictides, because many features of these materials set them apart from other superconductors. Hunte et al. report very high-field resistance measurements of LaFeAsO0.89F0.11 up to 45 T, which show a remarkable enhancement of the upper critical field Bc2 as compared to values expected from the slopes dBc2/dT ≈ 2 T/K near Tc, particularly at low temperatures where the deduced Bc2(0) ≈ 63–65 T exceeds the paramagnetic limit.

Date: 2008
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/nature07058 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:453:y:2008:i:7197:d:10.1038_nature07058

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature07058

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().