80 citations · 321 across the 11 of their papers we have counts for
11 papers
Tunneling Spectroscopy of Atomically-Thin Al2O3 Films for Tunnel Junctions
Jamie Wilt, Youpin Gong, Ming Gong +8
Metal-Insulator-Metal tunnel junctions (MIMTJ) are common throughout the microelectronics industry. The industry standard AlOx tunnel barrier, formed through oxygen diffusion into…
Detangling Extrinsic and Intrinsic Hysteresis for Detecting Dynamic Switch of Electric Dipoles using Graphene Field-Effect Transistors on Ferroelectric Gates
Chunrui Ma, Youpin Gong, Rongtao Lu +4
A transition in source-drain current vs back gate voltage ID - VBG characteristics from extrinsic polar molecule dominant hysteresis to anti-hysteresis induced by an oxygen deficie…
Controlling the thickness of Josephson tunnel barriers with atomic layer deposition
Alan J. Elliot, Chunrui Ma, Rongtao Lu +5
Atomic Layer Deposition (ALD) is a promising technique for producing Josephson junctions (JJs) with lower defect densities for qubit applications. A key problem with using ALD for…
Integrating Atomic Layer Deposition and Ultra-High Vacuum Physical Vapor Deposition for In Situ Fabrication of Tunnel Junctions
Alan J. Elliot, Gary A. Malek, Rongtao Lu +4
Atomic Layer Deposition (ALD) is a promising technique for growing ultrathin, pristine dielectrics on metal substrates, which is essential to many electronic devices. Tunnel juncti…
Development of Textured Magnesium Oxide Templates on Amorphous Polymer Surfaces Using Ion-Beam-Assisted-Deposition
Alan J. Elliot, Ronald N. Vallejo, Rongtao Lu +1
Biaxially textured MgO templates have been successfully fabricated on several amorphous polymer films including Kapton tapes, polyimide, Poly(methyl methacrylate) (PMMA), and photo…
Spatially resolved pump-probe study of single-layer graphene produced by chemical vapor deposition
Brian A. Ruzicka, Shui Wang, Jianwei Liu +3
Carrier dynamics in single-layer graphene grown by chemical vapor deposition (CVD) is studied using spatially and temporally resolved pump-probe spectroscopy by measuring both diff…
Transition of Impurity Nanorod Orientation in Epitaxial YBCO Films on Vicinal Substrates
Jack J. Shi, Judy Z. Wu
A theoretical study of the structural transition of impurity nanorod array in epitaxial YBCO films on vicinal STO substrates is presented. Two possible types of film/substrate inte…
Micromechanical Model for Self-Organized Impurity Nanorod Arrays in Epitaxial YBCO Films
Jack J. Shi, Judy Z. Wu
A micromechanical model based on the theory of elasticity has been developed to study the configuration of self-assembled impurity nanostructures in high temperature superconductin…
Second-harmonic generation induced by electric currents in GaAs
Brian A. Ruzicka, Lalani K. Werake, Guowei Xu +4
We demonstrate a new, nonlinear optical effect of electric currents. First, a steady current is generated by applying a voltage on a doped GaAs crystal. We demonstrate that this cu…
Terahertz superconducting plasmonic hole array
Zhen Tian, Ranjan Singh, Jiaguang Han +3
We demonstrate thermally tunable superconductor hole array with active control over their resonant transmission induced by surface plasmon polaritons . The array was lithographical…
Triple sign reversal of Hall effect in HgBa_{2}CaCu_{2}O_{6} thin films after heavy-ion irradiations
W. N. Kang, B. W. Kang, Q. Y. Chen +6
Triple sign reversal in the mixed-state Hall effect has been observed for the first time in ion-irradiated HgBa_{2}CaCu_{2}O_{6} thin films. The negative dip at the third sign reve…