Abstract
Kagome lattice magnets are an interesting class of materials as they can host topological properties in their magnetic and electronic structures. YMn6Sn6 is one such compound in which various exotic magnetic and electronic topological properties have been realized. Here, by means of a partial substitution of Sn with an isovalent and slightly smaller atom Ge, we demonstrate the sensitivity of such chemical substitution on the magnetic structure and its influence in the electronic properties. Magnetic structure of YMn6Sn4Ge2 determined by neutron diffraction reveals an incommensurate staggered magnetic spiral with a slightly larger spiral pitch than in YMn6Sn6. This change in magnetic structure influences the Fermi surface enhancing the out-of-plane conductivity. Such a sensitivity to the partial chemical substitution provides a great potential for engineering the magnetic phases and associated electronic properties not only in YMn6Sn6, but also in the large family of 166 rare-earth kagome magnet.
| Original language | English |
|---|---|
| Article number | 6 |
| Journal | npj Quantum Materials |
| Volume | 9 |
| Issue number | 1 |
| DOIs | |
| State | Published - Dec 2024 |
Funding
N.J.G. and H.B. acknowledge the support from the NSF CAREER award DMR-2143903. Crystal growth part of the work at George Mason University was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division. I.I.M. acknowledges support from the U.S. Department of Energy through the grant No. DE-SC0021089. Research conducted at ORNL’s High Flux Isotope Reactor was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. The authors would like to acknowledge the support from the Australian Centre for Neutron Scattering through proposal P9799. The identification of any commercial product or trade name does not imply endorsement or recommendation by the National Institute of Standards and Technology. N.J.G. and H.B. acknowledge the support from the NSF CAREER award DMR-2143903. Crystal growth part of the work at George Mason University was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division. I.I.M. acknowledges support from the U.S. Department of Energy through the grant No. DE-SC0021089. Research conducted at ORNL’s High Flux Isotope Reactor was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. The authors would like to acknowledge the support from the Australian Centre for Neutron Scattering through proposal P9799. The identification of any commercial product or trade name does not imply endorsement or recommendation by the National Institute of Standards and Technology.