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Mn-doping induced ferromagnetism and enhanced superconductivity in Bi_(4−x)Mn_xO_4S_3 (0.075 ≤ x ≤ 0.15)

Feng, Zhenjie and Yin, Xunqing and Cao, Yiming and Peng, Xianglian and Gao, Tian and Yu, Chuan and Chen, Jingzhe and Kang, Baojuan and Lu, Bo and Guo, Juan and Li, Qing and Tseng, Wei-Shiuan and Ma, Zhongquan and Jing, Chao and Cao, Shixun and Zhang, Jincang and Yeh, N.-C. (2016) Mn-doping induced ferromagnetism and enhanced superconductivity in Bi_(4−x)Mn_xO_4S_3 (0.075 ≤ x ≤ 0.15). Physical Review B, 94 (6). Art. No. 064522 . ISSN 2469-9950. http://resolver.caltech.edu/CaltechAUTHORS:20160831-093114980

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Abstract

We demonstrate that Mn doping in the layered sulfides Bi_4O_4S_3 leads to stable Bi_(4−x)Mn_x O_4S_3 compounds that exhibit both long-range ferromagnetism and enhanced superconductivity for 0.075 ≤ x ≤ 0.15, with a possible record superconducting transition temperature (T_c ) ∼15 K among all BiS_2-based superconductors. We conjecture that the coexistence of superconductivity and ferromagnetism may be attributed to Mn doping in the spacer Bi_2O_2 layers away from the superconducting BiS_2 layers, whereas the enhancement of T_c may be due to excess electron transfer to BiS_2 from the Mn^(4+)/Mn^(3+) substitutions in Bi_2O_2. This notion is empirically corroborated by the increased electron-carrier densities upon Mn doping, and by further studies of the Bi_(4−x)A_xO_4S_3 compounds (A = Co, Ni; x=0.1 , 0.125), where the T_c values remain comparable to that of the undoped Bi_4O_4S_3 system (∼4.5 K) due to lack of 4+ valences in either Co or Ni ions for excess electron transfer to the BiS_2 layers. These findings therefore shed new light on feasible pathways to enhance the T_c values of BiS_2-based superconductors, although complete elucidation of the interplay between superconductivity and ferromagnetism in these anisotropic layered compounds awaits the development of single crystalline materials for further investigation.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevB.94.064522DOIArticle
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.064522PublisherArticle
https://arxiv.org/abs/1608.04410arXivDiscussion Paper
ORCID:
AuthorORCID
Feng, Zhenjie0000-0003-3114-7390
Yeh, N.-C.0000-0002-1826-419X
Alternate Title:Mn-doping induced ferromagnetism and enhanced superconductivity in Bi4−xMnxO4S3 (0.075 ≤ x ≤ 0.15)
Additional Information:© 2016 American Physical Society. Received 24 January 2016; revised manuscript received 6 August 2016; published 30 August 2016. The research at Shanghai University was supported by the Chinese Ministry of Science and Technology (2016YFB0700504), Shanghai Pujiang Program (13PJD015), Science & Technology commission of Shanghai Municipality (13ZR1415200, 13JC1402400, 11dz1100305), and National Natural Science Foundation of China (NSFC, No. 51372149, No. 51371111, No. 51302249, and No. 11204171). The authors acknowledge the technical support by the beam line BL14B1 of Shanghai Synchrotron Radiation Facility for the XPS studies. The research at Caltech was supported by the National Science Foundation in the US under the Institute for Quantum Information and Matter (IQIM), and by the Gordon and Betty Moore Foundation and the Kavli Foundation through the Kavli Nanoscience Institute at Caltech. W.-S. T. acknowledges partial support from the Dragon Gate Program by the Ministry of Science and Technology in Taiwan.
Group:IQIM, Institute for Quantum Information and Matter, Kavli Nanoscience Institute
Funders:
Funding AgencyGrant Number
Ministry of Science and Technology (China)2016YFB0700504
Shanghai Pujiang Program13PJD015
Shanghai Municipality Science and Technology Commission13ZR1415200
Shanghai Municipality Science and Technology Commission13JC1402400
Shanghai Municipality Science and Technology Commission11dz1100305
National Natural Science Foundation of China51372149
National Natural Science Foundation of China51371111
National Natural Science Foundation of China51302249
National Natural Science Foundation of China11204171
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Kavli FoundationUNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
Ministry of Science and Technology (Taipei)UNSPECIFIED
Record Number:CaltechAUTHORS:20160831-093114980
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160831-093114980
Official Citation:Mn-doping induced ferromagnetism and enhanced superconductivity in Bi4−xMnxO4S3 (0.075 ≤ x ≤ 0.15) Zhenjie Feng, Xunqing Yin, Yiming Cao, Xianglian Peng, Tian Gao, Chuan Yu, Jingzhe Chen, Baojuan Kang, Bo Lu, Juan Guo, Qing Li, Wei-Shiuan Tseng, Zhongquan Ma, Chao Jing, Shixun Cao, Jincang Zhang, and N.-C. Yeh Phys. Rev. B 94, 064522
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70062
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:31 Aug 2016 17:27
Last Modified:16 Nov 2017 21:30

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