Quantum Anomalous Hall Effect in Magnetically Doped InAs/GaSb Quantum Wells

Abstract

The quantum anomalous Hall effect has recently been observed experimentally in thin films of Cr doped (Bi,Sb)${}_2$Te${}_3$ at a low temperature ($\sim$ 30mK). In this work, we propose realizing the quantum anomalous Hall effect in more conventional diluted magnetic semiconductors with doped InAs/GaSb type II quantum wells. Based on a four band model, we find an enhancement of the Curie temperature of ferromagnetism due to band edge singularities in the inverted regime of InAs/GaSb quantum wells. Below the Curie temperature, the quantum anomalous Hall effect is confirmed by the direct calculation of Hall conductance. The parameter regime for the quantum anomalous Hall phase is identified based on the eight-band Kane model. The high sample quality and strong exchange coupling make magnetically doped InAs/GaSb quantum wells good candidates for realizing the quantum anomalous Hall insulator at a high temperature.

References in corpus (13)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• 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
• Theory of ferromagnetic (III,Mn)V semiconductors
• Quantum Spin Hall Effect in Inverted Type II Semiconductors
• Quantum Anomalous Hall Effect in Hg${}_{1-y}$Mn${}_y$Te Quantum Wells
• Charge and spin Hall conductivity in metallic graphene
• Orbital analogue of quantum anomalous Hall effect in $p$-band systems
• Optical Properties of III-Mn-V Ferromagnetic Semiconductors
• Electronic States and Cyclotron Resonance in n-type InMnAs
• Spin states in InAs/AlSb/GaSb semiconductor quantum wells

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