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Full-Text Articles in Engineering
Induction Heating Of Thin Films, Paul L. Bergstrom, Melissa L. Trombley
Induction Heating Of Thin Films, Paul L. Bergstrom, Melissa L. Trombley
Paul Bergstrom
A method of performing regional heating of a system having a substrate. The method may include applying a thin film to the system, and controllably energizing a coil positioned near the thin film. The energized coils thereby generate a magnetic flux. The method further includes inducing a current in the thin film with the magnetic flux thereby heating the system.
Room Temperature Operational Single Electron Transistor Fabricated By Focused Ion Beam Deposition, P. Santosh Kumar Karre, Paul Bergstrom
Room Temperature Operational Single Electron Transistor Fabricated By Focused Ion Beam Deposition, P. Santosh Kumar Karre, Paul Bergstrom
Paul Bergstrom
We present the fabrication and room temperature operation of single electron transistors using 8nm8nmtungsten islands deposited by focused ion beamdeposition technique. The tunnel junctions are fabricated using oxidation of tungsten in peracetic acid. Clear Coulomb oscillations, showing charging and discharging of the nanoislands, are seen at room temperature. The device consists of an array of tunnel junctions; the tunnel resistance of individual tunnel junction of the device is calculated to be as high as 25.13GΩ25.13GΩ. The effective capacitance of the array of tunnel junctions was found to be 0.499aF0.499aF, giving a charging energy of 160.6meV160.6meV.
Magnetic Annealing Of Ferromagnetic Thin Films Using Induction Heating, Paul L. Bergstrom, Melissa L. Trombley
Magnetic Annealing Of Ferromagnetic Thin Films Using Induction Heating, Paul L. Bergstrom, Melissa L. Trombley
Paul Bergstrom
A method of performing magnetic annealing of a ferromagnetic thin film applied to a substrate includes applying an oscillating magnetic field to the ferromagnetic thin film to induce a current therein and heat the ferromagnetic thin film. A directional magnetic field is applied to the ferromagnetic thin film at the same time as the ferromagnetic thin film is heated, and the ferromagnetic thin film is allowed to acquire a desired magnetic characteristic, and then the oscillating magnetic field is removed and the ferromagnetic thin film is allowed to cool.