9,441 research outputs found

    Development of pigments for thermal control coatings Final report, 17 Jun. - 16 Dec. 1965

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    Powdered metal oxide pigments by nucleation for temperature control coating

    Topological superconductivity in the extended Kitaev-Heisenberg model

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    We study superconducting pairing in the doped Kitaev-Heisenberg model by taking into account the recently proposed symmetric off-diagonal exchange Γ\Gamma. By performing a mean-field analysis, we classify all possible superconducting phases in terms of symmetry, explicitly taking into account effects of spin-orbit coupling. Solving the resulting gap equations self-consistently, we map out a phase diagram that involves several topologically nontrivial states. For Γ<0\Gamma<0, we find a competition between a time-reversal symmetry breaking chiral phase with Chern number ±1\pm1 and a time-reversal symmetric nematic phase that breaks the rotational symmetry of the lattice. On the other hand, for Γ≥0\Gamma \geq 0 we find a time-reversal symmetric phase that preserves all the lattice symmetries, thus yielding clearly distinguishable experimental signatures for all superconducting phases. Both of the time-reversal symmetric phases display a transition to a Z2\mathbb{Z}_2 non-trivial phase at high doping levels. Finally, we also include a symmetry-allowed spin-orbit coupling kinetic energy and show that it destroys a tentative symmetry protected topological order at lower doping levels. However, it can be used to tune the time-reversal symmetric phases into a Z2\mathbb{Z}_2 non-trivial phase even at lower doping

    HRT 3016

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    HRT 3140

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    HRT 3016

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    Measuring Interpersonal Dependency in Adolescent Psychiatric Inpatients

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    The successful inpatient treatment of emotionally troubled adolescents must facilitate their achievement of developmentally appropriate independence while minimizing the maladaptive dependency that can be fostered by the hospitalization experience. Levels of interpersonal dependency were measured in seven adolescent psychiatric inpatients over a ninety day period. The Interpersonal Dependency Inventory by Hirschfeld, Klerman, Gough, Barrett, Korchin, & Chodoff was utilized. The individual therapist of each participant independently assessed the participant\u27s response to hospitalization at forty-five and ninety days using a five point Leikert type scale. The study demonstrated no significant changes in dependency levels at forty-five and ninety days. The therapist\u27s assessment proved to have no relationship to levels of dependency as measured by The Interpersonal Dependency Inventory

    HRT 3140

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    HRT 3017

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    HRT 3017

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    Fast High Resolution Echelle Spectroscopy Of A Laboratory Plasma

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    An echelle diffraction grating and a multianode photomultiplier tube are paired to construct a high resolution (R=lambda/delta lambda approximate to 2.5x10(4)) spectrograph with fast time response for use from the UV through the visible. This instrument has analyzed the line shape of C III impurity ion emission at 229.687 nm over the lifetime (approximate to 100 mu s) of the hydrogen plasmas produced at SSX. The ion temperature and line of sight average velocity are inferred from the observed thermal broadening and Doppler shift of the line. The time resolution of these measurements is about 1 mu s, sufficient to observe the fastest magnetohydrodynamic activity
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