Applied Physics Letters, Volume 118, Issue 8, February 2021. The natural intrinsic magnetic topological insulator MnBi2Te4(Bi2Te3)n is a platform for studying intriguing transport phenomena and provides an essential chance for the fundamental understanding of the combination of magnetism and topology. Here, we fabricated MnBi4Te7 thin film devices and carried out the transport measurement. It shows the unconventional anomalous Hall effect in the devices with the hysteresis anomaly and hump-like behavior. The gate-controlled sign reversal is also an interesting feature. With the modulation of gate voltage and temperature, we suggest that the unconventional anomalous Hall effect is due to the coexistence of the antiferromagnetic component and ferromagnetic component, which may result from the inhomogeneous spatial variation. Our work provides a resourceful insight into the study of the material family.
Authors
Departments
Libraries
Recent Articles
- Stability of the boundary layer expansion for the 3D plane parallel MHD flow
- Particle–hole symmetries in condensed matter
- Revisiting Groeneveld’s approach to the virial expansion
- Diffusion of charge carriers in pentacene
- Large lattice-relaxation-induced intrinsic shallow p-type characteristics in monolayer black phosphorus and black arsenic
- Quantitative analysis of magnetic cobalt particles with an optically pumped atomic magnetometer
- Observation of electrically detected electron nuclear double resonance in amorphous hydrogenated silicon films
- Unconventional anomalous Hall effect in magnetic topological insulator MnBi4Te7 device
- Spectral imaging of flexible terahertz coding metasurface
- Ellipsometric study of the electronic behaviors of titanium-vanadium dioxide (TixV1−xO2) films for 0 ≤ x ≤ 1 during semiconductive-to-metallic phase transition
- SO(9) characterization of the standard model gauge group
- Rigorous results for the electrical conductivity due to electron–phonon scattering
- A common parametrization for finite mode Gaussian states, their symmetries, and associated contractions with some applications
- Q&A: How Perseverance will build on past Martian expeditions
- Atomic and electronic structure of cesium lead triiodide surfaces
- Excited state dynamics of 7-deazaguanosine and guanosine 5′-monophosphate
- Graph analysis of proton conduction pathways in scandium-doped barium zirconate
- n-decane diffusion in carbon nanotubes with vibration
- Formation of negative and positive ions in the radiosensitizer nimorazole upon low-energy electron collisions
- Sampling initial positions and momenta for nuclear trajectories from quantum mechanical distributions