Related Experiment Video
Updated: Jan 28, 2026

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials
Published on: July 18, 2025
Observation of Complete Orbital Two-Channel Kondo Effect in van der Waals Ferromagnet Fe3GaTe2
Chunhao Bao1, Zhiyue Li2,3, Xiaolong Yin1
1Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China.
Abstract:
The orbital two-channel Kondo (2CK) effect is one of the crucial systems with non-Fermi liquid (NFL) behavior. But the full three-regime transport evidence has never been observed in one sample. Here, all three resistive regimes for the orbital 2CK effect induced by two-level systems (TLSs) have been observed in the van der Waals ferromagnet Fe3GaTe2. Electron behavior undergoes a continuous transition from electron scattering to NFL behavior, and subsequently to Fermi liquid behavior. The magnetic field does not affect any regimes, indicating the nonmagnetic origin of the TLSs in Fe3GaTe2. In addition, instead of topological Hall, the slope of a linear negative magnetoresistance is related to spin-magnon scattering and could be utilized to infer the emergence of spin textures. Our findings indicate that Fe3GaTe2 may be an ideal platform to study electron correlation and topological phenomena.
Related Concept Videos
Van der Waals Interactions
Van der Waals Equation
First, the attractive forces between molecules, which are stronger at higher densities and reduce the pressure, are considered by adding to the pressure a term equal to the square of the molar density multiplied by a positive coefficient a. Second, the volume...
Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation
Ferromagnetism
Atomic Orbitals
Molecular Orbital Theory II

