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Selenium‐doping induced two antiferromagnetic transitions in thiospinel compounds CuCo₂S_(4‐x)Se_x (0 ≤ x ≤ 0.8)

Feng, Zhenjie and Hou, Qiang and Li, Tao and Wang, Ke and Wu, Hao and Si, Jingying and Lv, Wenlai and Ge, Jun‐Yi and Cao, Shixun and Zhang, Jincang and Yeh, Nai-Chang (2021) Selenium‐doping induced two antiferromagnetic transitions in thiospinel compounds CuCo₂S_(4‐x)Se_x (0 ≤ x ≤ 0.8). Journal of the American Ceramic Society, 104 (4). pp. 1806-1813. ISSN 0002-7820. https://resolver.caltech.edu/CaltechAUTHORS:20201210-153911622

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Abstract

A series of copper thiospinels compounds, CuCo₂S_(4‐x)Se_x (x = 0, 0.2, 0.4, 0.6, 0.8), have been successfully synthesized by solid state reaction and their structure and magnetic properties have been studied. The Rietveld refinements of X‐Ray diffractions indicate that both the lattice constants and the nearest neighbor Cu‐Cu distances increase with increasing selenium doping. A weakly antiferromagnetic transition occurring at about 4 K is observed in CuCo₂S₄. Two antiferromagnetic transitions at about 3.5 K and 6 K are observed in selenium‐doped samples, which suggest that the exchange couplings associated with Cu‐S(Se)‐Cu and Cu‐Se(S)‐Cu, respectively, are responsible for the two antiferromagnetic transitions. Detailed analysis of the experimental results further indicate that the nearest‐neighbor molecular field coefficient is comparable to the next‐neighbor molecular field coefficient. We propose a reasonable model to explain this phenomenon.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1111/jace.17607DOIArticle
ORCID:
AuthorORCID
Feng, Zhenjie0000-0001-5870-5159
Yeh, Nai-Chang0000-0002-1826-419X
Alternate Title:Selenium‐doping induced two antiferromagnetic transitions in thiospinel compounds CuCo2S4‐xSex (0 ≤ x ≤ 0.8)
Additional Information:© 2020 The American Ceramic Society. Issue Online: 31 January 2021; Version of Record online: 20 December 2020; Accepted manuscript online: 02 December 2020; Manuscript accepted: 15 November 2020; Manuscript revised: 18 October 2020; Manuscript received: 15 July 2020. This work at the Shanghai University (SHU) is jointly supported by the Ministry of Science and Technology of the People’s Republic of China 2016YFB0700201, National Natural Science Foundation of China (11774217, 10904088), Shanghai Pujiang Program (13PJD015), and Science and Technology commission of Shanghai Municipality (13ZR1415200). N.‐C. Yeh acknowledges the research support from the National Science Foundation (Award #1733907) and the Army Research Office (Award #W911NF‐16‐1‐0472) in United States, and the hospitality and sponsorship of her visit to the SHU under the Overseas Expert Recruitment Program at SHU.
Funders:
Funding AgencyGrant Number
Ministry of Science and Technology (Taipei)2016YFB0700201
National Natural Science Foundation of China11774217
National Natural Science Foundation of China10904088
Shanghai Pujiang Program13PJD015
Science and Technology Commission of Shanghai Municipality13ZR1415200
NSFPHY-1733907
Army Research Office (ARO)W911NF-16-1-0472
Subject Keywords:antiferromagnetism; crystal structure; CuCo2S4; thiospinels
Issue or Number:4
Record Number:CaltechAUTHORS:20201210-153911622
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20201210-153911622
Official Citation:Feng, Z., Hou, Q., Li, T., Wang, K., Wu, H., Si, J., Lv, W., Ge, J.‐Y., Cao, S., Zhang, J. and Yeh, N.‐C. (2021), Selenium doping induced two antiferromagnetic transitions in thiospinel compounds CuCo2S4‐xSex (0 ≤ x ≤ 0.8). J Am Ceram Soc, 104: 1806-1813. https://doi.org/10.1111/jace.17607
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107021
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Dec 2020 23:52
Last Modified:02 Feb 2021 18:52

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