The experimental demonstration of a topological current divider

Article Multidisciplinary Sciences

Top-down patterning of topological surface and edge states using a focused ion beam

Abdulhakim Bake et al.

Nature Communications (2023)

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Article Multidisciplinary Sciences

Creation of chiral interface channels for quantized transport in magnetic topological insulator multilayer heterostructures

Yi-Fan Zhao et al.

Nature Communications (2023)

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Review Nanoscience & Nanotechnology

Oxide spin-orbitronics: spin-charge interconversion and topological spin textures

Felix Trier et al.

Summary: Oxide materials exhibit a wide range of functional properties, where electron correlations and spin-orbit coupling play significant roles. Recent advances in oxide spin-orbitronics have led to the realization of exotic phenomena and new functionalities for spintronics applications. The future prospects for this field involve further exploration of spin-charge interconversion, topological spin textures, and the influence of ferroelectricity on spin-orbit-driven effects.

NATURE REVIEWS MATERIALS (2022)

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Article Chemistry, Physical

Evidence of a room-temperature quantum spin Hall edge state in a higher-order topological insulator

Nana Shumiya et al.

Summary: This study provides micro-spectroscopic evidence for the presence of a room-temperature quantum spin Hall edge state on the surface of a higher-order topological insulator. The research reveals the microstructural features of the topological phase and suggests further exploration of high-temperature transport quantization.

NATURE MATERIALS (2022)

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Article Multidisciplinary Sciences

Topological current divider in a Chern insulator junction

Dmitry Ovchinnikov et al.

Summary: The authors of this study have created Chern insulator junctions between domains with different Chern numbers in MnBi2Te4, enabling the basic operation of a topological circuit. By controlling the Chern numbers of the individual domains, the chiral edge current can be split, rerouted, or switched off, offering potential applications in energy-efficient information transmission.

NATURE COMMUNICATIONS (2022)

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Review Physics, Multidisciplinary

Topological electronics

Matthew J. Gilbert

Summary: This review assesses the current state of electronic device applications and contemplates the future prospects of topological materials from an applied perspective, emphasizing their potential utility and interest generation. Topological materials may play a role in next generation technologies, providing a new perspective for the exploration and application of the exotic physical properties brought by topological phases.

COMMUNICATIONS PHYSICS (2021)

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Article Multidisciplinary Sciences

Controllable quantum point junction on the surface of an antiferromagnetic topological insulator

Nicodemos Varnava et al.

Summary: The engineering of unidirectional channels in quantum Hall systems has led to the construction of electron interferometers and proposals for low-power electronics and quantum information science applications. The proposal of using antiferromagnetic topological insulators to achieve stable and tunable connections for quantum point junctions opens up possibilities for electron quantum optics and microelectronic applications. Recent advances in the identification and growth of antiferromagnetic topological insulators allow for the manipulation of chiral edge states and the formation of quantum point junctions in electron quantum optics.

NATURE COMMUNICATIONS (2021)

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Article Materials Science, Multidisciplinary

Building programmable integrated circuits through disordered Chern insulators

Bing-Lan Wu et al.

Summary: Programmable integrated circuits are constructed using disordered Chern insulators to propose low dissipation logic devices and connecting wires. External gates induce step voltage to create spatially adjustable channels, replacing conventional wires. The electron transport is dissipationless and robust against gate voltage fluctuation and disorder, and seven basic logic gates distinct from traditional structures are proposed.

PHYSICAL REVIEW B (2021)

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Editorial Material Chemistry, Multidisciplinary