Quantized Phenomena of Transport and Magneto-Optics in Magnetic Topological Insulator Heterostructures

This book explores experimental studies on emergent transport and magneto-optical properties in three-dimensional topological insulators with two-dimensional Dirac fermions on their surfaces, using a cutting-edge growth technique to stabilize and manifest new quantization phenomena. It reveals quantum phases, such as the axion insulator, half-integer quantum Hall state, and quantum anomalous Hall insulator phases, and demonstrates how these phases can be stabilized via magnetic modulation doping and proximity coupling with a normal ferromagnetic insulator. These findings have potential applications in future technologies such as ultra-low energy consumption electronic devices and fault-tolerant topological quantum computers.

Format: Hardback
Length: 109 pages
Publication date: 08 May 2022
Publisher: Springer Verlag, Singapore

This captivating book delves into groundbreaking experimental investigations into the realm of emergent transport and magneto-optical properties in three-dimensional topological insulators adorned with two-dimensional Dirac fermions on their surfaces. Through the utilization of a cutting-edge growth technique known as molecular beam epitaxy, the author has successfully stabilized and unveiled fascinating new quantization phenomena, as evidenced by comprehensive low-temperature electrical transport and time-domain terahertz magneto-optical measurements.

The author begins by providing a comprehensive review of the theoretical background and recent experimental advancements in topological insulators, focusing on their novel magneto-electric coupling. This foundation sets the stage for exploring the magnetic quantum properties of these materials, unveiling intriguing topological phase transitions between quantum anomalous Hall insulator and trivial insulator phases. Additionally, the author uncovers a new topological phase known as the axion insulator, as well as a half-integer quantum Hall state associated with the quantum parity anomaly.

Furthermore, the author demonstrates how these quantum phases can be remarkably stabilized through magnetic modulation doping and proximity coupling with a normal ferromagnetic insulator. These groundbreaking findings lay the foundation for future technological advancements, including ultra-low energy consumption electronic devices and fault-tolerant topological quantum computers.

In summary, this book offers a profound exploration into the intricate interplay between emergent transport, magneto-optical properties, and topological phases in three-dimensional topological insulators. Through meticulous experimentation and theoretical analysis, the author has provided valuable insights into the potential applications of these materials in fields such as electronics and computing.

Weight: 366g
Dimension: 235 x 155 (mm)
ISBN-13: 9789811921360
Edition number: 1st ed. 2022