5 papers
Quantized Conductance through Surface States in High Quality Three-Dimensional Dirac Semimetal CdAs Nanowire/Nanoribbon p-n Junctions
Sungjin An, Zhuo Bin Siu, Vardan Kaladzhyan +8
We report the observation of quantized conductance in high-mobility three-dimensional Dirac semimetal CdAs nanowire and nanoribbon p-n junctions. By employing suspended dev…
Radio-Frequency Detection of Fabry-Pérot Interference and Quantum Capacitance in Long-Channel Three-Dimensional Dirac Semimetal Cd3As2 Nanowires
Sung Jin An, Jisu Kim, Myung-Chul Jung +10
We demonstrate phase-coherent transport in suspended long-channel Cd3As2 nanowire devices using both direct current (DC) transport and radio-frequency (RF) reflectometry measuremen…
NHSE-Driven Coalescence of Topological Defect States in Non-Hermitian Systems
S. M. Rafi-Ul-Islam, Zhuo Bin Siu, Md. Saddam Hossain Razo +1
In this work, we describe a novel localization phenomena, the so-called topological defect accumulation, occurring in a non-Hermitian chain with an arbitrary number of defect sites…
Protected chaos in a topological lattice
Haydar Sahin, Hakan Akgün, Zhuo Bin Siu +4
The erratic nature of chaotic behavior is thought to erode the stability of periodic behavior, including topological oscillations. However, we discover that in the presence of chao…
Reconfigurable Defect States in Non-Hermitian Topolectrical Chains with Gain and Loss
S. M. Rafi-Ul-Islam, Zhuo Bin Siu, Md Saddam Hossain Razo +1
We investigate the interplay between the non-Hermitian skin effect (NHSE), parity-time (PT) symmetry, and topological defect states in a finite non-Hermitian Su-Schrieffer-Heeger (…