432 citations · 769 across the 18 of their papers we have counts for
12 papers · 1 filter
Schottky Electric Field Induced Circular Photogalvanic Effect in Cd3As2 Nanobelts
Bob Minyu Wang, Yuqing Zhu, Henry Clark Travaglini +2
Dirac semimetals are expected to forbid the manifestation of the circular photogalvanic effect (CPGE) because of their crystal inversion symmetry. Here, we report the observation o…
Multiple Andreev reflections in topological insulator nanoribbons
Rak-Hee Kim, Nam-Hee Kim, Bongkeon Kim +3
Superconducting proximity junctions made of topological insulator (TI) nanoribbons (NRs) provide a useful platform for studying topological superconductivity. We report on the fabr…
Gate-Modulated Quantum Interference Oscillations in Sb-Doped Bi2Se3 Topological Insulator Nanoribbon
Tae-Ha Hwang, Hong-Seok Kim, Yasen Hou +2
Topological insulator nanoribbons (TI NRs) provide a useful platform to explore the phase-coherent quantum electronic transport of topological surface states, which is crucial for…
Adjustable quantum interference oscillations in Sb-doped Bi2Se3 topological insulator nanoribbons
Hong-Seok Kim, Tae-Ha Hwang, Nam-Hee Kim +4
Topological insulator (TI) nanoribbons (NRs) provide a unique platform for investigating quantum interference oscillations combined with topological surface states. One-dimensional…
Nanosecond dynamics in intrinsic topological insulator revealed by time-resolved optical reflectivity
Adam L. Gross, Yasen Hou, Antonio Rossi +2
is an ideal three-dimensional topological insulator in which the chemical potential can be brought into the bulk band gap with antimony doping. Here, we ut…
Non-local Chemical Potential Modulation in Topological Insulators Via Electric Field Driven Trapped Charge Migration
Yasen Hou, Rui Xiao, Senlei Li +2
Topological insulators (TIs) host unusual surface states with Dirac dispersion and helical spin texture and hold high potentials for novel applications in spintronics and quantum c…
Superconducting Quantum Interference Devices Made of Sb-doped Bi2Se3 Topological Insulator Nanoribbons
Nam-Hee Kim, Hong-Seok Kim, Yasen Hou +2
We report the fabrication and characterization of superconducting quantum interference devices (SQUIDs) made of Sb-doped Bi2Se3 topological insulator (TI) nanoribbon (NR) contacted…
Nanomechanical characterization of quantum interference in a topological insulator nanowire
Minjin Kim, Jihwan Kim, Yasen Hou +5
The discovery of two-dimensional gapless Dirac fermions in graphene and topological insulators (TI) has sparked extensive ongoing research toward applications of their unique elect…
Emergence of excitonic superfluid at topological-insulator surfaces
Yasen Hou, Rui Wang, Rui Xiao +11
Excitons are spin integer particles that are predicted to condense into a coherent quantum state at sufficiently low temperature, and exciton condensates can be realized at much hi…
Gate-tunable superconducting quantum interference devices of PbS nanowires
Hong-Seok Kim, Bum-Kyu Kim, Yiming Yang +4
We report on the fabrication and electrical transport properties of gate-tunable superconducting quantum interference devices (SQUIDs), made of semiconducting PbS nanowire contacte…
Hot Carrier Trapping Induced Negative Photoconductance in InAs Nanowires toward Novel Nonvolatile Memory
Yiming Yang, Xingyue Peng, Hong-Seok Kim +7
We report a novel negative photoconductivity (NPC) mechanism in n-type indium arsenide nanowires (NWs). Photoexcitation significantly suppresses the conductivity with a gain up to…
Broadband Quantum Efficiency Enhancement in High Index Nanowires Resonators
Yiming Yang, Xingyue Peng, Steven Hyatt +1
Light trapping in sub-wavelength semiconductor nanowires (NWs) offers a promising approach to simultaneously reducing material consumption and enhancing photovoltaic performance. N…