2017年4月10日 · Here we present evidence that at low temperatures monolayer WTe 2 exhibits an insulating bulk state and edge conduction, and describe the properties of the edge conduction, including its...

2019年2月8日 · Here, we directly image the local conductivity of monolayer WTe 2 using microwave impedance microscopy, establishing beyond doubt that conduction is indeed …

2017年6月26日 · Scanning tunnelling spectroscopy (STS) spectra show evidence of the insulating bulk and conductive edge nature of 1T′-WTe 2. Our results thus provide compelling experimental evidence of a QSH...

In this review, we mainly summarize the recent experimental progress of the 2D quantum spin Hall insulators in monolayer 1 T' -WTe 2, including the sample preparation via a molecular beam epitaxy technique, the detection of helical edge states and their response on external magnetic fields, as well as the modulation of more rich and novel ...

2019年12月16日 · In this work, we demonstrate robust photocurrent generation at the edge of Td -WTe 2, a type-II Weyl semimetal, due to crystalline-symmetry breaking along certain crystal fracture directions...

2020年5月30日 · The ability to tune the edge domination by changing thickness and the edge superconductivity establishes WTe 2 as a promising topological system with exotic quantum phases and a rich physics.

2020年3月9日 · Magnetic proximity and nonreciprocal current switching in a monolayer WTe2 helical edge. The integration of diverse electronic phenomena, such as magnetism and nontrivial topology, into a single system is normally studied either by seeking materials that contain both ingredients, or by layered growth of contrasting materials1-9.

2024年10月14日 · Herein, we have discovered a locally enhanced edge linear photogalvanic effect at the edge of WTe 2 thin-film devices using a home-built polarization-modulated scanning photocurrent system, which arises from symmetry breaking.

2021年11月17日 · Experiments with monolayer WTe$ {}_ {2}$ show clear evidence of helicity in currents flowing around its edge, all but confirming that this system is a quantum spin Hall insulator.

2019年9月26日 · Our analysis shows the interplay between edge configuration, coordination environment, and shape that determines the stability of nanoflakes, and allows us to describe …