Magnetic Kagome Lattice (Gd,Tb,Dy,Ho,Er)Mn6Sn6 with High Configuration Entropy.
Wenhao Liu1,2,3, Nikhil Uday Dhale1, Youzhe Chen2,3
1Department of Physics, the University of Texas at Dallas, Richardson, Texas 75080, United States.
Inorganic Chemistry
|December 28, 2025
Summary
High entropy alloying in magnetic kagome lattice compounds (R)Mn6Sn6 reveals novel magnetic transitions and persistent linear magnetoresistance. Topological electronic states are preserved, promising new discoveries in magnetic and topological phenomena.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Quantum Materials
Background:
- RMn6Sn6 compounds exhibit interplay between magnetism and topological electronic states.
- Rare earth alloying offers control over physical properties via configurational entropy.
Purpose of the Study:
- Investigate magnetic and transport properties of high entropy (Gd,Tb,Dy,Ho,Er)Mn6Sn6 single crystals.
- Explore the combined effects of high entropy and magnetic kagome lattice structures.
Main Methods:
- Synthesis of single crystals of (Gd,Tb,Dy,Ho,Er)Mn6Sn6.
- Systematic investigation of magnetic and transport properties.
- Characterization of magnetic transitions and magnetoresistance.
Main Results:
- The high entropy material displays multiple novel magnetic transitions.
- Linear magnetoresistance persists up to 20 Tesla at 4 Kelvin.
- Intrinsic nontrivial band topology and anomalous Hall effect are observed.
Conclusions:
- High entropy alloying in RMn6Sn6 systems leads to new magnetic behaviors and preserves topological properties.
- This approach opens a vast compositional landscape for exploring novel magnetic and topological phenomena.
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