Search for dissertations about: "x-ray-diffraction"
Showing result 1 - 5 of 599 swedish dissertations containing the word x-ray-diffraction.
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1. Time-resolved x-ray diffraction of nanostructured samples
Abstract : The work presented in this thesis is based on time-resolved x-ray diffraction studies of InSb (111) samples. The experiments were carried out using a pump-probe configuration using short laser pulses as the pump and x-rays as the probe. Laser excitation leads to the formation of a strain pulse that propagates through the sample. READ MORE
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2. Structural Studies Of Materials Using Time-Resolved X-ray Diffraction
Abstract : This work consisted of the application of X-ray diffraction methods to the study of ultrafast phenomena in various materials. Since the X-ray pulses generated from the bending magnet at the MAX II ring, where most of the experimental work was conducted, have a duration of the order of 300 ps, they can not be used directly as probe pulses in experiments where higher temporal resolution is required. READ MORE
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3. Strain Mapping of Single Nanowires using Nano X-ray Diffraction
Abstract : Nanowires are explored as basic components for a large range of electronic devices. The nanowire format offersseveral benefits, including reduced material consumption and increased potential for combining materials to formnew novel heterostructures. READ MORE
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4. Time-resolved X-ray diffraction studies of phonons and phase transitions
Abstract : This thesis summarizes work in which time-resolved X-ray diffraction has been used to probe crystalline materials, thereby revealing the dynamics of phonons and phase transitions. X-ray diffraction is the standard tool in investigations of structure on the atomic scale. READ MORE
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5. Studies of Phonons and Phase Transitions by Time-Resolved X-ray Diffraction
Abstract : When light is used to study structures, the wavelength limits the size of the details that can be resolved. Visible light can be used to investigate structures as small as a micrometre in size. To study smaller structures a shorter wavelength is required. READ MORE