Browsing by Author "Ross, Joseph H."
Now showing items 1-20 of 22
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Seo, Dongmin (2009-05-15)This dissertation focuses on three separate studies. First, magnetization of the Mn12- acetate was studied by low temperature hysteresis loops and DC magnetization data on magnetically aligned Mn12-acetate micro-crystals. ...
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Ford, Arlene C. (2011-08-08)Localized detection of very small regularly placed magnetic systems, such as an array of tiny magnetic islands, has been of great interest to scientists for years because of their applications to data storage media. One ...
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Schuckman, Amanda Eileen (2012-07-16)Organic molecules such as porphyrins and alkanethiols are currently being investigated for applications such as sensors, light-emitting diodes and single electron transistors. Porphyrins are stable, highly conjugated ...
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Shen, Jingyi (Texas A&M University, 2005-08-29)The correlation between NMR chemical shifts of interstitial atoms and electronic structures of boron- and carbon-centered hexazirconium halide clusters was investigated by density functional theory (DFT) calculation. The ...
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Chen, Chi (2010-10-12)A low temperature scanning tunneling microscope (LTSTM) was built that we could use in an ultra high vacuum (UHV) system. The scanning tunneling microscope (STM) was tested on an existing 3He cryostat and calibrated at ...
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Khandekar, Sameer Sudhakar (Texas A&M University, 2005-08-29)A magnetic force microscope (MFM) is a special type of scanning force microscope which measures the stray field above a ferromagnetic sample with the help of a ferromagnetic cantilever. The aim of this project was to design ...
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Lue, C. S.; Ross, Joseph H.; Chang, C. F.; Yang, H. D. (Physical Review B - Condensed Matter and Materials Physics, 1999)
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Wu, Shu-Hsien (2013-04-19)The charge storage in the a-Si:H PIN photodiode under different light wavelength illuminations has been studied. The leakage current-voltage and capacitance-voltage curves under three fundamental visible light wavelengths, ...
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Yao, Xianghan (2014-08-10)Graphene electrons possess linear energy dispersion relation, and thus behave as two-dimensional (2D) Dirac fermions. Consequently, compared with the conventional 2D electron gas systems (2DEG) found in MOSFETs and quantum ...
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Rodriguez Robles, Sergio (2012-10-19)The search for heat regenerators is currently very important due to the amount of wasted heat produced in different human activities. Thermoelectric materials have emerged as a possible solution to the world’s demand and ...
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Yegin, Cengiz (2012-07-16)Ni-Co-Mn-In system is a new type of magnetic shape memory alloys (MSMAs) where the first order structural and magnetic phase transitions overlap. These materials can generate large reversible shape changes due to ...
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Ghassemi, Nader (2020-08-27)Thermoelectric (TE) materials offer interconversion of thermal and electrical energy through the presence of a heat gradient and thus constitute an attractive option for the recovery of waste heat. Low conversion efficiency ...
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Lue, C. S.; Ross, Joseph H. (Physical Review B - Condensed Matter and Materials Physics, 2000)
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Zheng, Xiang; Rodriguez, Sergio Y.; Ross, Joseph H. (Physical Review B - Condensed Matter and Materials Physics, 2011)
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Tian, Yefan (2021-01-06)In this dissertation, NMR techniques combined with various experimental and computational techniques were applied to investigate materials systems including advanced thermoelectric ma- terials and topological chalcogenides. ...
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Liu, Mengxiao (2019-05-16)As an analytical technique for structure determination and quantitative analysis, nuclear magnetic resonance (NMR) spectroscopy is widely used to characterize reactions or interactions. However, NMR is not readily applicable ...
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Shi, Jian-Hui (Texas A&M University. Libraries, 1993)In this thesis, I show how the basic solid-state NMR techniques can be used to study the local electronic structures of II-VI and III-V semiconductor alloys on an atomic scale. We have focused our studies on a few high ...
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Sinha, Indrani (2009-05-15)This dissertation describes a tight-binding technique that treats the dynamics of electrons and ions simultaneously. The main features are a generalized Hellmann- Feynman theorem, a standard, time-dependent, self-consistent-field ...
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Chen, Jing-Han (2015-08-11)The recent discovery of giant magnetocaloric effects (MCE) at around room temperature has triggered the possibility of the development of a magnetic refrigerator that operates at ambient temperature. One of the main ...
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Lopez Cruz, Federico (2015-08-07)We employ cross–sectional scanning tunneling microscopy to obtain an accurate statistical representation of the as–grown heterojunctions delineating the quantum wells and quantum barriers in InAlAs / InGaAs strain–balanced ...