KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| Mg-doping enhanced superconductivity and ferromagnetism in Ti1-xMgxO films | |
| Fan, YJ; Gan, H; Wang, D; Sun, HY; Ma, C; Huang, FQ; Zhou, J; Yin, YW; Li, XG | |
| 2020-11-01 | |
| Source Publication | ACTA MATERIALIA
 |
| ISSN | 1359-6454 |
| Pages | 66 |
| Subtype | Article |
| Abstract | The structure, electrical transport, and magnetic properties have been systematically studied in superconducting Ti1-xMgxO (x = 0, 0.003, 0.02, 0.08, and 0.27) films. It is found that, both the zero resistance and onset superconducting transition temperatures of Ti1-xMgxO first increase with increasing the Mg content from x = 0 to x = 0.02, and then decrease with the further increase of x. More interestingly, the Mg-doping simultaneously introduces a ferromagnetic order into this superconducting system, and the ferromagnetism gradually increases with increasing Mg content. According to the first-principles calculations, the non-monotonous Mg doping-dependent superconductivity, carrier density, and disorder strength may be explained as that the Mg atoms first fill the Ti vacancy sites and then substitute the Ti atoms. The calculations also reveal that the ferromagnetism is highly related to the spin polarization of 3d states of Ti atoms surrounding Mg atoms. The discovery of enhanced superconductivity with co-existing ferromagnetism in Ti1-xMgxO films provides an excellent platform to investigate the interaction between superconductivity and ferromagnetism. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| DOI | 10.1016/j.actamat.2020.09.001 |
| WOS Keyword | COEXISTENCE ; TEMPERATURE ; VACANCIES ; 1ST-PRINCIPLES ; TRANSITIONS ; DEPENDENCE ; TIO2 ; SPIN |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sic.ac.cn/handle/331005/27647 |
| Collection | 中国科学院上海硅酸盐研究所 |
| Recommended Citation GB/T 7714 | Fan, YJ,Gan, H,Wang, D,et al. Mg-doping enhanced superconductivity and ferromagnetism in Ti1-xMgxO films[J]. ACTA MATERIALIA,2020:66. |
| APA | Fan, YJ.,Gan, H.,Wang, D.,Sun, HY.,Ma, C.,...&Li, XG.(2020).Mg-doping enhanced superconductivity and ferromagnetism in Ti1-xMgxO films.ACTA MATERIALIA,66. |
| MLA | Fan, YJ,et al."Mg-doping enhanced superconductivity and ferromagnetism in Ti1-xMgxO films".ACTA MATERIALIA (2020):66. |
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