Synthesis and superconductivity in spark plasma sintered pristine and graphene-doped FeSe 0.5 Te 0.5

Nanotechnology Reviews

article

Pooja Puneet¹  Ramakrishna Podila¹  Jian He¹  Apparao M. Rao¹  Austin Howard³  Nicholas Cornell³  Anvar A. Zakhidov³ 

[1] Department of Physics and Astronomy, Clemson Nanomaterials Center, Clemson University, United States of America;Center for Optical Materials Science and Engineering Technologies (COMSET), United States of America;Nanotech Institute, University of Texas at Dallas, United States of America

关键词: graphene;    spark plasma sintering;    superconductivity;   

DOI  :  10.1515/ntrev-2015-0018

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Here, we present a new ball-milling and spark plasma sintering (SPS)-based technique for the facile synthesis of FeSe 0.5 Te 0.5 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 FeSe 0.5 Te 0.5 exhibits a coexistence of ferromagnetic (FM) and superconductivity signature plausibly arising from a FM core-superconducting shell structure. More importantly, the H c 2 values observed from resistivity data are higher than 7 T, indicating that SPS process synthesized FeSe 0.5 Te 0.5 samples could lead to next-generation superconducting wires and cables.

【 授权许可】

CC BY