97 citations · 278 across the 12 of their papers we have counts for
12 papers
Equilibration and Filtering of Quantum Hall Edge States in Few-Layer Black Phosphorus
J. Yang, K. Wang, S. Che +9
We realize p-p'-p junctions in few-layer black phosphorus (BP) devices, and use magneto-transport measurements to study the equilibration and transmission of edge states at the int…
Helical Edge States and Quantum Phase Transitions in Tetralayer Graphene
Shi Che, Yanmeng Shi, Jiawei Yang +9
Helical conductors with spin-momentum locking are promising platforms for Majorana fermions. Here we report observation of two topologically distinct phases supporting helical edge…
Integer and Fractional Quantum Hall effect in Ultra-high Quality Few-layer Black Phosphorus Transistors
Jiawei Yang, Son Tran, Jason Wu +8
As a high mobility two-dimensional semiconductor with strong structural and electronic anisotropy, atomically thin black phosphorus (BP) provides a new playground for investigating…
Twist Angle-Dependent Bands and Valley Inversion in 2D Materials/hBN Heterostructures
Shi Che, Petr Stepanov, Supeng Ge +13
The use of relative twist angle between adjacent atomic layers in a van der Waals heterostructure, has emerged as a new degree of freedom to tune electronic and optoelectronic prop…
Long-Distance Spin Transport Through a Graphene Quantum Hall Antiferromagnet
Petr Stepanov, Shi Che, Dmitry Shcherbakov +11
Antiferromagnetic insulators (AFMI) are robust against stray fields, and their intrinsic dynamics could enable ultrafast magneto-optics and ultrascaled magnetic information process…
Evolution of shot noise in suspended lithographic gold break junctions with bias and temperature
Ruoyu Chen, Douglas Natelson
Shot noise is a powerful tool to probe correlations and microscopic transport details that conductance measurements alone cannot reveal. Even in atomic-scale Au devices that are we…
Surface Transport and Quantum Hall Effect in Ambipolar Black Phosphorus Double Quantum Wells
Son Tran, Jiawei Yang, Nathaniel Gillgren +10
Quantum wells constitute one of the most important classes of devices in the study of 2D systems. In a double layer QW, the additional "which-layer" degree of freedom gives rise to…
Current noise enhancement: channel mixing and possible nonequilibrium phonon backaction in atomic-scale Au junctions
Loah A. Stevens, Pavlo Zolotavin, Ruoyu Chen +1
We report measurements of the bias dependence of the Fano factor in ensembles of atomic-scale Au junctions at 77 K. Previous measurements of shot noise at room temperature and low…
Shot noise variation within ensembles of gold atomic break junctions at room temperature
Ruoyu Chen, Manuel Matt, Fabian Pauly +3
Atomic-scale junctions are a powerful tool to study quantum transport, and are frequently examined through the mechanically controllable break junction technique (MCBJ). The juncti…
Enhanced noise at high bias in atomic-scale Au break junctions
Ruoyu Chen, Patrick J. Wheeler, M. Di Ventra +1
Heating in nanoscale systems driven out of equilibrium is of fundamental importance, has ramifications for technological applications, and is a challenge to characterize experiment…
Noise in electromigrated nanojunctions
P. J. Wheeler, Ruoyu Chen., D. Natelson
Noise measurements are a probe beyond simple electronic transport that can reveal additional information about electronic correlations and inelastic processes. Here we report noise…
Excess noise in scanning tunneling microscope-style break junctions at room temperature
Ruoyu Chen, Patrick Wheeler, D. Natelson
Current noise in nanoscale systems provides additional information beyond the electronic conductance. We report measurements at room temperature of the nonequilibrium "excess" nois…