Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5

Here, we present a new ball-milling and spark plasma sintering (SPS)-based technique for the facile synthesis of FeSe0.5Te0.5 superconductors without the need for pre-alloying. This method is advantageous since it is quick and flexible for incorporating other dopants such as graphene for vortex pinn...

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Main Authors: Puneet Pooja, Podila Ramakrishna, He Jian, Rao Apparao M., Howard Austin, Cornell Nicholas, Zakhidov Anvar A.
Format: Article
Language:English
Published: De Gruyter 2015-10-01
Series:Nanotechnology Reviews
Subjects:
Online Access:https://doi.org/10.1515/ntrev-2015-0018
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author Puneet Pooja
Podila Ramakrishna
He Jian
Rao Apparao M.
Howard Austin
Cornell Nicholas
Zakhidov Anvar A.
author_facet Puneet Pooja
Podila Ramakrishna
He Jian
Rao Apparao M.
Howard Austin
Cornell Nicholas
Zakhidov Anvar A.
author_sort Puneet Pooja
collection DOAJ
description Here, we present a new ball-milling and spark plasma sintering (SPS)-based technique for the facile synthesis of FeSe0.5Te0.5 superconductors without the need for pre-alloying. This method is advantageous since it is quick and flexible for incorporating other dopants such as graphene for vortex pinning. We observed that FeSe0.5Te0.5 exhibits a coexistence of ferromagnetic (FM) and superconductivity signature plausibly arising from a FM core-superconducting shell structure. More importantly, the Hc2 values observed from resistivity data are higher than 7 T, indicating that SPS process synthesized FeSe0.5Te0.5 samples could lead to next-generation superconducting wires and cables.
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spelling doaj.art-0ec44fe2852b46409950c3d34c2e63872022-12-21T21:28:13ZengDe GruyterNanotechnology Reviews2191-90892191-90972015-10-014541141710.1515/ntrev-2015-0018Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5Puneet Pooja0Podila Ramakrishna1He Jian2Rao Apparao M.3Howard Austin4Cornell Nicholas5Zakhidov Anvar A.6Department of Physics and Astronomy, Clemson Nanomaterials Center, Clemson University, Clemson, SC 29634, United States of AmericaDepartment of Physics and Astronomy, Clemson Nanomaterials Center, Clemson University, Clemson, SC 29634, United States of AmericaDepartment of Physics and Astronomy, Clemson Nanomaterials Center, Clemson University, Clemson, SC 29634, United States of AmericaDepartment of Physics and Astronomy, Clemson Nanomaterials Center, Clemson University, Clemson, SC 29634, United States of AmericaNanotech Institute, University of Texas at Dallas, Richardson, TX 75080, United States of AmericaNanotech Institute, University of Texas at Dallas, Richardson, TX 75080, United States of AmericaNanotech Institute, University of Texas at Dallas, Richardson, TX 75080, United States of AmericaHere, we present a new ball-milling and spark plasma sintering (SPS)-based technique for the facile synthesis of FeSe0.5Te0.5 superconductors without the need for pre-alloying. This method is advantageous since it is quick and flexible for incorporating other dopants such as graphene for vortex pinning. We observed that FeSe0.5Te0.5 exhibits a coexistence of ferromagnetic (FM) and superconductivity signature plausibly arising from a FM core-superconducting shell structure. More importantly, the Hc2 values observed from resistivity data are higher than 7 T, indicating that SPS process synthesized FeSe0.5Te0.5 samples could lead to next-generation superconducting wires and cables.https://doi.org/10.1515/ntrev-2015-0018graphenespark plasma sinteringsuperconductivity
spellingShingle Puneet Pooja
Podila Ramakrishna
He Jian
Rao Apparao M.
Howard Austin
Cornell Nicholas
Zakhidov Anvar A.
Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5
Nanotechnology Reviews
graphene
spark plasma sintering
superconductivity
title Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5
title_full Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5
title_fullStr Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5
title_full_unstemmed Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5
title_short Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe0.5Te0.5
title_sort synthesis and superconductivity in spark plasma sintered pristine and graphene doped fese0 5te0 5
topic graphene
spark plasma sintering
superconductivity
url https://doi.org/10.1515/ntrev-2015-0018
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