'Topological gardening' to achieve unexpected spin transport: Trimming edge-states of a topological insulator yields a new class of material featuring unconventional 'two way' edge transport -- ScienceDaily

'Trimming' the edge-states of a topological insulator yields a new class of material featuring unconventional 'two way' edge transport in a new theoretical study from Monash University, Australia.

"Topological insulators conduct electricity only along their edges, and strictly in one direction. This one-way path conducts electricity without loss of energy due to resistance." This groundbreaking discovery will significantly advance our fundamental understanding of how spin currents travel in topological materials, providing valuable insights into the behaviour of these intriguing systems.

"This discovery opens up a new path toward achieving FLEET's goal of creating low-energy-consuming electronic devices," adds corresponding author Prof Nikhil Medhekar, also affiliated with Monash. "By carefully choosing the tuning factors, we can isolate specific branches of edge states from the original entangled configuration," explains Dr. Yuefeng Yin.

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