Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 2003. / Includes bibliographical references (leaves 285-292).

Thesis (Ph. D.)--University of Texas at Austin, 2003. / Vita. Includes bibliographical references. Available also from UMI Company.

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Lai Chun Hei Gary = 錳氧化物-鈮摻雜之鈦酸鍶異構結的輸運特性 / 黎鎮禧. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2005. / Includes bibliographical references. / Text in English; abstracts in English and Chinese. / Lai Chun Hei Gary = Meng yang hua wu-ni shan za zhi tai suan si yi gou jie de shu yun te xing / Li Zhenxi. / Acknowledgement --- p.i / Abstract --- p.ii / 論文摘要 --- p.iv / Table of contents --- p.vi / List of Figures --- p.x / List of Tables --- p.xv / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Introduction to perovskite manganites and niobium doped strontium titanate --- p.1-1 / Chapter 1.1.1 --- Structure and properties of perovskite manganites --- p.1-1 / Chapter 1.1.2 --- Structure and properties of niobium doped strontium titanate --- p.1-4 / Chapter 1.1.3 --- Phase transition in perovskite manganites --- p.1-9 / Chapter 1.1.4 --- Charge ordering and small polaron theory in PCMO --- p.1-15 / Chapter 1.1.5 --- Colossal Magnetoresistance (CMR) in perovskite manganites --- p.1-19 / Chapter 1.16 --- Review of semiconducting junction between perovskite manganites and niobium doped strontium titanate --- p.1-23 / Chapter 1.2 --- Research motivation --- p.1-28 / Chapter 1.3 --- Scope of this thesis --- p.1-29 / References --- p.1-31 / Chapter Chapter 2 --- Experimental details / Chapter 2.1 --- Thin film deposition --- p.2-1 / Chapter 2.1.1 --- Facing-target sputtering --- p.2-1 / Chapter 2.1.2 --- Vacuum system --- p.2-3 / Chapter 2.1.3 --- Fabrication and characterization of manganites targets --- p.2-4 / Chapter 2.1.4 --- Substrate --- p.2-7 / Chapter 2.1.5 --- Deposition procedure --- p.2-8 / Chapter 2.1.6 --- Silver electrode coating apparatus --- p.2-10 / Chapter 2.2 --- Annealing systems --- p.2-12 / Chapter 2.2.1 --- Vacuum annealing system --- p.2-12 / Chapter 2.2.2 --- Oxygen annealing system --- p.2-14 / Chapter 2.3 --- Characterization --- p.2-16 / Chapter 2.3.1 --- Profilometer --- p.2-16 / Chapter 2.3.2 --- X-ray diffractometer --- p.2-16 / Chapter 2.3.3 --- Resistance measurement system --- p.2-18 / Chapter 2.3.4 --- Current-voltage characteristics measurement system --- p.2-20 / References --- p.2-23 / Chapter Chapter 3 --- Epitaxial LCMO/STON heterojunction / Chapter 3.1 --- Four point and two point I-V measurement --- p.3-1 / Chapter 3.2 --- Magnetic phase transition of LCMO revealed by four point I-V measurement of LCMO/STON heteroj unction --- p.3-8 / Chapter 3.3 --- Oxygen annealing effect on LCMO/STON heteroj unction --- p.3-14 / Chapter 3.4 --- Positive colossal Magnetoresistance in LCMO/STON heteroj unction --- p.3-16 / References --- p.3-23 / Chapter Chapter 4 --- Epitaxial PCMO/STON heterojunction / Chapter 4.1 --- Ohmic contact for PCMO thin films --- p.4-1 / Chapter 4.2 --- PCMO charge ordering and magnetic phase transition --- p.4-9 / Chapter 4.3 --- Four point I-V measurement of PCMO/STON heterojunction --- p.4-14 / References --- p.4-16 / Chapter Chapter 5 --- Epitaxial LCMO/PCMO/STON junction / Chapter 5.1 --- Tunneling junction fabrication --- p.5-1 / Chapter 5.2 --- Structural characterizations --- p.5-2 / Chapter 5.3 --- PCMO magnetic phase transition revealed by I-V measurement of LCMO/PCMO/STON tunneling junction --- p.5-3 / Chapter 5.4 --- Energy band structure of perovskite manganites --- p.5-11 / Chapter 5.4.1 --- Introduction to energy band of perovskite manganites and STON --- p.5-11 / Chapter 5.4.2 --- Temperature dependent band structure of LCMO explained by diffusion voltage of LCMO/STON heterojunction --- p.5-18 / References --- p.5-22 / Chapter Chapter 6 --- Conclusions / Chapter 6.1 --- Conclusion --- p.6-1 / Chapter 6.2 --- Future outlook --- p.6-3

Cheung, Wing Kin = 應變及間隔效應對La0.67Sr0.33MnO3摻雜Pr0.67Ca0.33MnO3的傳導特性的影響之研究 / 張榮健. / On t.p. "0.67", "0.33" and "3" are subscripts. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 89-93). / Text in English; abstracts in English and Chinese. / Cheung, Wing Kin = Ying bian ji jian ge xiao ying dui La0.67Sr0.33MnO3 shan za Pr0.67Ca0.33MnO3 de chuan dao te xing de ying xiang zhi yan jiu / Zhang Rongjian. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Development of magnetoresistance materials --- p.1 / Chapter 1.2 --- What is magnetoresistance? --- p.1 / Chapter 1.2.1 --- Anisotropic magnetoresistance --- p.2 / Chapter 1.2.2 --- Giant magnetoresistance (GMR) --- p.3 / Chapter 1.2.3 --- Colossal magnetoresistance (CMR) --- p.4 / Chapter 1.3 --- Possible origins of CMR in manganites --- p.6 / Chapter 1.3.1 --- Tolerance factor --- p.6 / Chapter 1.3.2 --- Double exchange mechanism --- p.8 / Chapter 1.3.3 --- Jahn-Teller distortion --- p.11 / Chapter 1.3.4 --- Charge-ordering and phase separation --- p.13 / Chapter 1.4 --- Movtiation --- p.17 / Chapter 1.5 --- Literature review --- p.18 / Chapter 1.5.1 --- Single-layer manganite thin films --- p.18 / Chapter 1.5.2 --- Multilayer system - manganites with insulating spacers --- p.19 / Chapter 1.6 --- Scope of thesis --- p.20 / Chapter 2 --- Instrumentation --- p.21 / Chapter 2.1 --- Sample preparation --- p.21 / Chapter 2.1.1 --- Facing-target sputtering technique (FTS) --- p.21 / Chapter 2.1.2 --- Deposition system --- p.24 / Chapter 2.2 --- Annealing system --- p.26 / Chapter 2.2.1 --- Oxygen annealing --- p.26 / Chapter 2.3 --- Sample characterization --- p.28 / Chapter 2.3.1 --- X-ray diffraction (XRD) --- p.28 / Chapter 2.3.2 --- Alpha - step profiler --- p.30 / Chapter 2.3.3 --- Transport property measurement --- p.30 / Chapter 3 --- Preparation and characterization of single-layer thin films --- p.32 / Chapter 3.1 --- Introduction --- p.32 / Chapter 3.2 --- Fabrication and characteristization of the sputtering targets --- p.32 / Chapter 3.3 --- Deposition procedure --- p.36 / Chapter 3.3.1 --- Preparation of substrate --- p.36 / Chapter 3.3.2 --- Deposition process --- p.36 / Chapter 3.4 --- Parameters related to epitaxial growth of LPSCMO thin films --- p.37 / Chapter 3.4.1 --- Substrate materials --- p.37 / Chapter 3.4.2 --- Substrate temperature --- p.38 / Chapter 3.4.3 --- Oxygen partial pressure --- p.38 / Chapter 4 --- Thickness and strain effects in epitaxial LPSCMO thin films --- p.43 / Chapter 4.1 --- Introduction --- p.43 / Chapter 4.2 --- Structural characterization of LPSCMO thin films --- p.45 / Chapter 4.2.1 --- Thickness effect --- p.45 / Chapter 4.2.2 --- Strain effect --- p.49 / Chapter 4.3 --- Transport properties and magnetoresistance measurement --- p.51 / Chapter 4.3.1 --- Thickness effect --- p.51 / Chapter 4.3.2 --- Strain effect --- p.60 / Chapter 4.4 --- Discussion --- p.63 / Chapter 5 --- Effect of spacer in [LPSCMO/SCuO] multilayer --- p.65 / Chapter 5.1 --- Sample preparation --- p.65 / Chapter 5.2 --- Characterization of as-deposited multilayer samples --- p.67 / Chapter 5.2.1 --- Structural anaylsis --- p.67 / Chapter 5.2.2 --- Resistance measurement --- p.72 / Chapter 5.3 --- Oxygen-annealing treatment --- p.76 / Chapter 5.3.1 --- Introduction --- p.76 / Chapter 5.3.2 --- Structural anaylsis --- p.77 / Chapter 5.3.3 --- Resistance measurement --- p.78 / Chapter 5.4 --- Discussion --- p.85 / Chapter 6 --- Conclusion --- p.87 / Chapter 6.1 --- Summary --- p.87 / Chapter 6.2 --- Future outlook --- p.88 / Bibliography --- p.89

Thesis (M.S.)--University of Texas at El Paso, 2007. / Title from title screen. Vita. CD-ROM. Includes bibliographical references. Also available online.

Thesis (Ph.D. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references (leaves 46-66).

Thesis (Ph.D.)--University of Wollongong, 2004. / Typescript. Includes bibliographical references.

Hydrogen is a component of spacecraft fuel that is explosive at atmospheric concentrations of four percent or higher. A study was undertaken to determine potential systems for use in tow types of hydrogen sensors that will be useful for real time hydrogen detection, both in ground storage and utilization facilities and in spacecraft. Quantitative detection demands a small, highly sensitive, and highly selective sensor. These detectors will be useful in areas such as the vicinity of joints, couplings, and stress points in the hydrogen storage and plumbing system of the space shuttle. Qualitative detection requires the other sensor to cover large areas, use no power, and be easily monitored visually or with a camera. Such a sensor will serve two purposes: it will allow general detection of hydrogen in a large space where poorly positioned point sensors would fail; it will also aid in locating and repairing any hydrogen leaks that might occur. A manganese (IV) oxide film was produced on the surface of a quartz crystal microbalance and this system was investigated for use as a small, quantitative hydrogen sensor. A reproducible response to hydrogen in the form of an increase in the frequency of vibration of the quartz crystal under an applied voltage was demonstrated. Other coatings were also investigated. A number of indicator compounds were screened for response to hydrogen to serve as large area sesnors. The metallochromic indicator, calmagite, produced a noticeable darkening upon exposure to hydrogen, demonstrating its potential for use as a qualitative, large area hydrogen sensor.