215 citations · 1.1k across the 13 of their papers we have counts for
13 papers
Direct Imaging of Dynamic Glassy Behavior in a Strained Manganite Film
Worasom Kundhikanjana, Zhigao Sheng, Yongliang Yang +10
Complex many-body interaction in perovskite manganites gives rise to a strong competition between ferromagnetic metallic and charge ordered phases with nanoscale electronic inhomog…
Batch-fabricated cantilever probes with electrical shielding for nanoscale dielectric and conductivity imaging
Yongliang Yang, Keji Lai, Qiaochu Tang +5
This paper presents the design and fabrication of batch-processed cantilever probes with electrical shielding for scanning microwave impedance microscopy. The diameter of the tip a…
Unexpected Surface Implanted Layer in Static Random Access Memory Devices Observed by Microwave Impedance Microscope
Worasom Kundhikanjana, Yongliang Yang, Qiaochu Tang +5
Real-space mapping of doping concentration in semiconductor devices is of great importance for the microelectronic industry. In this work, a scanning microwave impedance microscope…
Unexpected edge conduction in HgTe quantum wells under broken time reversal symmetry
Eric Yue Ma, M. Reyes Calvo, Jing Wang +16
The realization of quantum spin Hall (QSH) effect in HgTe quantum wells (QWs) is considered a milestone in the discovery of topological insulators. The QSH edge states are predicte…
Imaging of the Coulomb driven quantum Hall edge states
Keji Lai, Worasom Kundhikanjana, Michael A. Kelly +3
The edges of a two-dimensional electron gas (2DEG) in the quantum Hall effect (QHE) regime are divided into alternating metallic and insulating strips, with their widths determined…
Cryogenic Microwave Imaging of Metal-Insulator Transition in Doped Silicon
Worasom Kundhikanjana, Keji Lai, Michael A. Kelly +1
We report the instrumentation and experimental results of a cryogenic scanning microwave impedance microscope. The microwave probe and the scanning stage are located inside the var…