Chemistry of Materials
Chemistry of Materials
3 years ago

[ASAP] Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co3In2S2

[ASAP] Antiferromagnetic Order and Linear Magnetoresistance in Fe-Substituted Shandite Co<sub>3</sub>In<sub>2</sub>S<sub>2</sub>
Michael A. McGuire, Qiang Zhang, Hu Miao, Wei Luo, Mina Yoon, Yaohua Liu, Turgut Yilmaz, Elio Vescovo
Co3In2S2 is a shandite phase closely related to the ferromagnetic Weyl semimetal Co3Sn2S2 and contains Co atoms on an ideal kagomé net. Elemental substitutions in Co3Sn2S2 have been shown to invariably suppress its magnetism, and it remains a rare example of a shandite phase with magnetic order. Here, we report a new magnetic shandite compound discovered by substituting Fe into Co3In2S2. Single crystals of (Co1–xFex)3In2S2 were grown, and neutron diffraction, ac and dc magnetization, and heat capacity measurements reveal long-range antiferromagnetic order with an interesting noncollinear structure and transition temperatures from 11 to 17 K. Partially substituting Fe for Co was inspired by calculated electronic structures, which suggest that Co3In2S2 is near a magnetic instability and shows a peak in the density of states that can be approached by hole doping. While the focus of the present work is primarily on magnetism, there is a nodal ring below the Fermi energy in Co3In2S2 that may also provide interest from a topological perspective. Potentially related to this, we find large, linear, nonsaturating magnetoresistance in this compound. This work expands the scope of magnetic topological materials among shandites and motivates similar chemical manipulation studies to reveal hidden magnetic instabilities in this important family and other topological systems. The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.chemmater.1c03596. Additional Rietveld refinement results for powder X-ray diffraction data, additional magnetization data, neutron diffraction results from Co3In2S2, comparison of ARPES and DFT, heat capacity and Hall effect data, and representation analysis information used for the magnetic structure determination (PDF) This article has not yet been cited by other publications.

Publisher URL: https://pubs.acs.org/doi/10.1021/acs.chemmater.1c03596

DOI: 10.1021/acs.chemmater.1c03596

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.