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- Raman spectroscopy (2)
- Scanning electron microscopy (2)
- Allende (1)
- Bali (1)
- Band filling (1)
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- Band hybridization (1)
- Carbonaceous chondritic meteorites (1)
- Carbonaceous chondritric meteorites (1)
- Electrical conductivity (1)
- Elemental composition (1)
- Energy dispersive x-ray spectroscopy (1)
- Energy-dispersive x-ray spectroscopy (1)
- Mineralogical composition (1)
- Temperature (1)
- Theoretical physics (1)
Articles 1 - 3 of 3
Full-Text Articles in Physics
Band Filling And Temperature Effects On Electrical Conductivity In Strongly Correlated Hybridized Electron Systems, Dylan T. Meyer
Band Filling And Temperature Effects On Electrical Conductivity In Strongly Correlated Hybridized Electron Systems, Dylan T. Meyer
All Graduate Theses, Dissertations, and Other Capstone Projects
We investigate the effects of band filling as well as temperature change on the electrical conductivity of materials with strong interelectron interaction as well as band hybridization. This is done by use of the irreducible two-particle Green function method applied to strongly correlated electron systems described by the Periodic Anderson Model. It was found that there is a definite peak in electrical conductivity at low band occupancy when the d-energy sub-band is half filled. Conductivity was found to have a sharp drop with an increase in temperature as a result of thermal dispersion as well as a change in the …
Compositional And Topographical Characterization Of Carbonaceous Chondritic Meteorites Moss And Murray Using Micro-Raman Spectroscopy And Sem/Eds, Aaron Stokke
All Graduate Theses, Dissertations, and Other Capstone Projects
Carbonaceous chondritic meteorites are considered some of the most primitive surviving materials from the formation of our solar system. Thus, these objects can provide information about planet formation through their physical properties (such as structure, composition, and morphology) which can be characterized using microscopy and spectroscopy techniques. In this work, the analytical methods of Raman spectroscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and optical microscopy are applied to determine the mineralogical, topographical, and elemental compositions of two carbonaceous chondritic fragments: Moss and Murray. Both samples were comprised of chondrules and matrix while Moss contained chondrule rims and Murray …
Comparative Study Of Cv3 Carbonaceous Chondrites Allende And Bali Using Micro-Raman Spectroscopy And Sem/Eds, Raka Paul
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The birth of the solar system (over 4 billion years) is speculated to have happened from a nebula, swirling and compacting in localized regions to eventually form the Sun and planets. This complex process consists of numerous changes and intermediary steps, yet to be fully understood. Carbonaceous chondritic meteorites are relics of that process and therefore have potential to reveal information about the formation history. Several theories have been formulated linking their composition to planet formation. This study focusses on two carbonaceous chondritic specimens, Allende and Bali, both of the group CV and petrologic type 3. CV meteorites are abundant …