Sökning: "patterned"

Visar resultat 1 - 5 av 146 avhandlingar innehållade ordet patterned.

  1. 1. On Some Properties and Applications of Patterned Ferromagnetic Thin Films

    Författare :Pierre E. Roy; Peter Svedlindh; Per Nordblad; Jeffrey McCord; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; micromagnetics; vortex; spin dynamics; domains; MFM; microwave; patterned; permalloy; Materialvetenskap; Materials science; Teknisk materialvetenskap;

    Sammanfattning : A microwave reflection method has been used to measure the spin excitations corresponding to the translational mode of magnetic vortices in samples containing either one or two vortices. Experimental findings are complemented by micromagnetic simulations. One-vortex systems are investigated in micron-sized circular and elliptical cylinders. LÄS MER

  3. 2. Nano and Micro Patterned Organic Devices : From Neural Interfaces to Optoelectronic Devices

    Författare :Tobias Nyberg; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis describes fabrication methods for optoelectronic devices (light emitting diodes (LEDs) and photodiodes) and structures for neural interfacing (neural electrodes and nerve guidance structures) using semiconducting and conducting organic materials as the active elements. Special importance has been attached to the patterning and processing of these devices. LÄS MER

  4. 3. Studies in Estimation of Patterned Covariance Matrices

    Författare :Martin Ohlson; Timo Koski; Dietrich von Rosen; Augustyn Markiewicz; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Sammanfattning : Many testing, estimation and confidence interval procedures discussed in the multivariate statistical literature are based on the assumption that the observation vectors are independent and normally distributed. The main reason for this is that often sets of multivariate observations are, at least approximately, normally distributed. LÄS MER

  5. 4. Photoresponse of Patterned YBa2Cu3O7-x Thin Films

    Författare :Martin Danerud; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The first object of this work was to develop YBa2Cu3O7-x (YBCO) thin films. Initially, Y, BaF2 and Cu were coevaporated with the substrate temperature (TS) 400 °C and the oxygen pressure (pO2) 5 x 10-5 mbar on SrTiO3 substrates with a subsequent high temperature annealing at 890 °C for 15 min in flowing wet oxygen. LÄS MER

  7. 5. Effect of patterned step edges on the nucleation and growth of YBa2Cu3O7-δ on (001) LaAlO3 substrates : a transmission electron microscopy study

    Författare :Marica Gustafsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microstructure; thin film; nucleation; patterned step edges; YBa2Cu3O7-delta; grain boundary; film evolution; transmission electron microscopy;

    Sammanfattning : .... LÄS MER