Ambi-chiral anomalous Hall effect in magnetically doped topological insulators

Abstract

The chirality associated with broken time reversal symmetry in magnetically doped topological insulators has important implications to the quantum transport phenomena. Here we report the anomalous Hall effect studies in Mn- and Cr-doped Bi${}_2$Te${}_3$ topological insulators with varied thickness and doping content. By tracing the chirality of the Hall loops, we find that the Mn-type anomalous Hall effect with clockwise chirality is strengthened by the reduction of film thickness, which is opposite to that of the Cr-type anomalous Hall effect with counterclockwise chirality. We provide a phenomenological model to explain the evolution of magnetic order and anomalous Hall effect chirality in magnetically doped topological insulators.

arXiv comment11 pages, 5 figures

References in corpus (40)

• Topological Insulators
• Topological insulators and superconductors
• Skyrmion Lattice in a Chiral Magnet
• Anomalous Hall effect
• Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator
• Topological Field Theory of Time-Reversal Invariant Insulators
• Quantized Anomalous Hall Effect in Magnetic Topological Insulators
• Magnetic-field-induced quantized anomalous Hall effect in intrinsic magnetic topological insulator MnBi${}_2$Te${}_4$
• Crossover of Three-Dimensional Topological Insulator of Bi2Se3 to the Two-Dimensional Limit
• High-precision realization of robust quantum anomalous Hall state in a hard ferromagnetic topological insulator
• Seeing the magnetic monopole through the mirror of topological surface states
• Robust axion insulator and Chern insulator phases in a two-dimensional antiferromagnetic topological insulator
• Quantum Anomalous Hall Effect in Hg${}_{1-y}$Mn${}_y$Te Quantum Wells
• Trajectory of Anomalous Hall Effect toward the Quantized State in a Ferromagnetic Topological Insulator
• Scale-Invariant Dissipationless Chiral Transport in Magnetic Topological Insulators beyond the Two-Dimensional Limit
• Chiral Majorana edge state in a quantum anomalous Hall insulator-superconductor structure
• The development of ferromagnetism in the doped topological insulator Bi2-xMnxTe3
• Surface quantized anomalous Hall current and magneto-electric effect in magnetically disordered topological insulators
• Realization of the Axion Insulator State in Quantum Anomalous Hall Sandwich Heterostructures
• Carrier-independent ferromagnetism and giant anomalous Hall effect in magnetic topological insulator
• Quantized topological magnetoelectric effect of the zero-plateau quantum anomalous Hall state
• Chiral topological superconductor and half-integer conductance plateau from quantum anomalous Hall plateau transition
• Tailoring tricolor structure of magnetic topological insulator for robust axion insulator
• Topological magneto-electric effects in thin films of topological insulators
• Interplay between ferromagnetism, surface states, and quantum corrections in a magnetically doped topological insulator
• Review of experiments on the chiral anomaly in Dirac-Weyl semimetals
• Dimensional Crossover Induced Topological Hall Effect in a Magnetic Topological Insulator
• Spin chirality fluctuation in two-dimensional ferromagnets with perpendicular anisotropy
• Low temperature ferromagnetic properties of the diluted magnetic semiconductor Sb2-xCrxTe3
• Surface magnetic ordering in topological insulators with bulk magnetic dopants
• Experimental Verification of Van Vleck Nature of Long-Range Ferromagnetic Order in Vanadium-Doped Three-Dimensional Topological Insulator Sb${}_2$Te${}_3$
• Scaling of the Quantum Anomalous Hall Effect as an Indicator of Axion Electrodynamics
• Magnetic-field-induced robust zero Hall plateau state in MnBi${}_2$Te${}_4$ Chern insulator
• Signatures of Dirac fermion-mediated magnetic order
• Dual nature of magnetic dopants and competing trends in topological insulators
• Ferromagnetism and Spin-dependent Transport in n-type Mn-Bi2Te3 Thin Films
• Electrically tuned magnetic order and magnetoresistance in a topological insulator
• Interface-Induced Sign Reversal of the Anomalous Hall Effect in Magnetic Topological Insulator Heterostructures
• Spectroscopic perspective on the interplay between electronic and magnetic properties of magnetically doped topological insulators
• Sign change in the anomalous Hall effect and strong transport effects in a 2D massive Dirac metal due to spin-charge correlated disorder

Cited by in corpus (1)

• Fabrication-induced even-odd discrepancy of magnetotransport in few-layer MnBi${}_2$Te${}_4$