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Influence of FeSe doping on superconducting properties of MgB_2 by hybrid microwave method

Cheng, Cheng and Feng, Zhenjie and Li, Qing and Wang, Xu and Yu, Chuan and Chu, Hao and Yang, Ya and Liu, Changqin and Cao, Yiming and Li, Zhe and Chen, Jingzhe and Jing, Chao and Cao, Shixun and Zhang, Jincang (2017) Influence of FeSe doping on superconducting properties of MgB_2 by hybrid microwave method. Current Applied Physics, 17 (11). pp. 1439-1443. ISSN 1567-1739 . http://resolver.caltech.edu/CaltechAUTHORS:20170818-095754799

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Abstract

The effect of FeSe doping on the physical properties of MgB_2 is studied. Bulk samples of the FeSe doped MgB_2 with weight ratio x (FeSe:MgB_2) = 0%, 3%, 7%, and 10% were prepared by hybrid microwave method. It is proved that FeSe is not stable together with MgB_2. Fe^(2+) enters into MgB_2 lattice, some Mg^(2+) and Se^(2−) are combined into the new impurity compound MgSe. The superconducting transition temperature (T_c) slightly decreased with increasing doping content of FeSe from R-T and M-T curves, which results from the substitution of Mg^(2+) by Fe^(2+) in the MgB_2 lattice. The J_c increase slightly with the FeSe doping content increasing from 3 wt % to 10 wt %, which results from the increasing MgSe impurity pinning centers.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.cap.2017.08.008DOIArticle
http://www.sciencedirect.com/science/article/pii/S1567173917302262PublisherArticle
ORCID:
AuthorORCID
Feng, Zhenjie0000-0003-3114-7390
Additional Information:© 2017 Elsevier B.V. Received 2 June 2017, Revised 1 August 2017, Accepted 13 August 2017, Available online 16 August 2017.
Subject Keywords:MgB_2; Critical current density; MgSe impurity; FeSe doping
Record Number:CaltechAUTHORS:20170818-095754799
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170818-095754799
Official Citation:Cheng Cheng, Zhenjie Feng, Qing Li, Xu Wang, Chuan Yu, Hao Chu, Ya Yang, Changqin Liu, Yiming Cao, Zhe Li, Jingzhe Chen, Chao Jing, Shixun Cao, Jincang Zhang, Influence of FeSe doping on superconducting properties of MgB2 by hybrid microwave method, In Current Applied Physics, Volume 17, Issue 11, 2017, Pages 1439-1443, ISSN 1567-1739, https://doi.org/10.1016/j.cap.2017.08.008
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80610
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Aug 2017 17:14
Last Modified:05 Oct 2017 16:51

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