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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…
Microwave imaging of mesoscopic percolating network in a manganite thin film
Keji Lai, Masao Nakamura, Worasom Kundhikanjana +4
Many unusual behaviors in complex oxides are deeply associated with the spontaneous emergence of microscopic phase separation. Depending on the underlying mechanism, the competing…
Ultra-thin Topological Insulator Bi2Se3 Nanoribbons Exfoliated by Atomic Force Microscopy
Seung Sae Hong, Worasom Kundhikanjana, Judy J. Cha +6
Ultra-thin topological insulator nanostructures, in which coupling between top and bottom surface states takes place, are of great intellectual and practical importance. Due to the…