65 citations · 200 across the 8 of their papers we have counts for
8 papers
Defect states and their electric field-enhanced electron thermal emission in heavily Zr-doped beta-Ga2O3 crystals
Rujun Sun, Yu Kee Ooi, Arkka Bhattacharyya +4
Performing deep level transient spectroscopy (DLTS) on Schottky diodes, we investigated defect levels below the conduction band minima (Ec) in Czochralski (CZ) grown unintentionall…
On the origin of red luminescence from iron-doped beta-Ga2O3 bulk crystals
Rujun Sun, Yu Kee Ooi, Peter T. Dickens +2
Currently, Fe doping in the ~10^18 cm-3 range is the most widely-available method for producing semi-insulating single crystalline beta-Ga2O3 substrates. Red luminescence features…
Degenerate doping in \b{eta}-Ga2O3 Single Crystals through Hf-doping
Muad Saleh, Joel B. Varley, Jani Jesenovec +4
N type conductivity of \b{eta}-Ga2O3 grown from the melt is typically achieved using Sn and Si. In this paper, we experimentally and computationally investigate Hf doping of \b{eta…
Schottky Barrier Height Engineering In -GaO Using SiO Interlayer Dielectric
Arkka Bhattacharyya, Praneeth Ranga, Muad Saleh +4
This paper reports on the modulation of Schottky barrier heights (SBH) on three different orientations of -GaO by insertion of an ultra-thin SiO dielectric interlaye…
Magnetic Shield Approach Toward Non-adiabatic Low to High Field Positron Beam Transition for Microtraps
M. A. Khamehchi, A. Narimannezhad, M. H. Weber +1
This simulation study sheds light on effectiveness of a magnetic shield on non-adiabatic transport of a positron beam from 3700G to 100G where we were able to maximize the low to h…
Study of Conduction Cooling Effects in Long Aspect Ratio Penning-Malmberg Micro-Traps
M. A. Khamehchi, C. J. Baker, M. H. Weber +1
A first order perturbation with respect to velocity has been employed to find the frictional damping force imposed on a single moving charge due to a perturbative electric field, i…
Fabrication of High Aspect Ratio Micro-Penning-Malmberg Gold Plated Silicon Trap Arrays
Alireza Narimannezhad, Joshah Jennings, Marc H. Weber +1
Acquiring a portable high density charged particles trap might consist of an array of micro-Penning-Malmberg traps (microtraps) with substantially lower end barriers potential than…
Simulation studies of the behavior of positrons in a microtrap with long aspect ratio
Alireza Narimannezhad, Christopher J. Baker, Marc H. Weber +2
The charged particles storage capacity of microtraps (micro-Penning-Malmberg traps) with large length to radius aspect ratios and radii of the order of tens of microns was explored…