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19 April 2024 |
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Oxypnictide SmFeAs(O,F) superconductor: a candidate for high-field magnet applications | | Kazumasa Iida
; Jens Haenisch
; Chiara Tarantini
; Fritz Kurth
; Jan Jaroszynski
; Shinya Ueda
; Michio Naito
; Ataru Ichinose
; Ichiro Tsukada
; Elke Reich
; Vadim Grinenko
; Ludwig Schultz
; Bernhard Holzapfel
; | | Date: |
4 Jul 2013 | | Abstract: | The recently discovered oxypnictide superconductor SmFeAs(O,F) is the most
attractive material among the Fe-based superconductors due to its highest
transition temperature of 56 K and potential for high-field performance. In
order to exploit this new material for superconducting applications, the
knowledge and understanding of its electro-magnetic properties are needed.
Recent success in fabricating epitaxial SmFeAs(O,F) thin films opens a great
opportunity to explore their transport properties. Here we report on a high
critical current density of over 10^5 A/cm^2 at 45 T and 4.2 K for both main
field orientations, feature favourable for high-field magnet applications.
Additionally, by investigating the pinning properties, we observed a
dimensional crossover between the superconducting coherence length and the FeAs
interlayer distance at 30-40 K, indicative of a possible intrinsic Josephson
junction in SmFeAs(O,F) at low temperatures that can be employed in electronics
applications such as a terahertz radiation source and a superconducting Qubit. | | Source: | arXiv, 1307.1282 | | Services: | Forum | Review | PDF | Favorites | |
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