Multi-band mass enhancement towards critical doping in a pnictide superconductor
نویسندگان
چکیده
منابع مشابه
Correlation-induced self-doping in the iron-pnictide superconductor Ba2Ti2Fe2As4O.
The electronic structure of the iron-based superconductor Ba2Ti2Fe2As4O (Tc(onset)=23.5 K) has been investigated by using angle-resolved photoemission spectroscopy and combined local density approximation and dynamical mean field theory calculations. The electronic states near the Fermi level are dominated by both the Fe 3d and Ti 3d orbitals, indicating that the spacer layers separating diffe...
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Citation Wray, L. et al. " Deviating Band Symmetries and Many-body Interactions in a Model Hole-doped Iron Pnictide Superconductor. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. You...
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Doping of MgB2 by nano-SiC and its potential for the improvement of flux pinning were studied for MgB22x(SiC)x/2 with x50, 0.2, and 0.3 and for 10 wt % nano-SiC-doped MgB2 samples. Cosubstitution of B by Si and C counterbalanced the effects of single-element doping, decreasing Tc by only 1.5 K, introducing intragrain pinning centers effective at high fields and temperatures, and significantly e...
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S. Lee, C. Tarantini, P. Gao, J. Jiang, J. D. Weiss, F. Kametani, C. M. Folkman, Y. Zhang, X. Q. Pan, E. E. Hellstrom, D. C. Larbalestier, and C. B. Eom Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA Applied Superconductivity Center, National High Magnetic Field Laboratory, Florida State University, 2031 East Paul Dirac Drive, Tallahasse...
متن کاملDistinct doping dependence of critical temperature and critical current density in Ba1−xKxFe2As2 superconductor
Since the high transition temperature (High-Tc) superconductivity was discovered in the series of materials containing iron (Fe), their potential for the applications has been extensively scrutinized. In particular, a lot of effort has been made in achieving the high current-carrying ability by revealing the vortex pinning behavior. Here, we report on the critical current density (Jc) for the p...
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ژورنال
عنوان ژورنال: npj Quantum Materials
سال: 2019
ISSN: 2397-4648
DOI: 10.1038/s41535-018-0144-x