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  • 1
    Electronic Resource
    Electronic Resource
    Model for the estimation of electron impact gas chromatography/mass spectrometry response factors for quadrupole mass spectrometers (1986)
    s.l. : American Chemical Society
    Analytical chemistry 58 (1986), S. 1665-1670 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00121a015
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  • 2
    Electronic Resource
    Electronic Resource
    Absorption Spectra of Rare Earth Glazes. (1931)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 35 (1931), S. 3480-3485 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150330a003
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  • 3
    Electronic Resource
    Electronic Resource
    Benzopyrones. 7. Synthesis and antiallergic activity of some 2-(5-tetrazolyl)chromones (1972)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 15 (1972), S. 865-867 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00278a027
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  • 4
    Electronic Resource
    Electronic Resource
    Transport properties of silver-doped Y-Ba-Cu-O thin films (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 1538-1542 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Transport properties of dilute silver-doped Y-Ba-Cu-O thin films prepared by a laser ablation technique have been investigated. The Hall coefficient and critical current density were measured as a function of temperature and in magnetic field up to 1.0 T. Silver doping is shown to result in significant changes in the temperature- and magnetic-field dependence of the transport properties of these films. The Hall coefficient in silver-doped films shows a clear decrease from that in silver-free films, consistent with an increase in the hole concentration caused by the silver impurities. This result lends a direct support to the observation that dilute silver dopants behave as acceptors but without appreciable influence on the transition temperature. The magnetic-field dependence of the normalized critical current density Jc(H)/Jc(0) is enhanced by silver doping, mainly due to a decrease in the effective weak-link area at the grain boundaries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347245
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  • 5
    Electronic Resource
    Electronic Resource
    Shock response of pentaerythritol tetranitrate single crystals (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 3572-3587 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The shock response of single crystals of the explosive pentaerythritol tetranitrate was studied from 3.4 to 19 GPa. Four orientations, 〈110〉, 〈001〉, 〈101〉, and 〈100〉 were studied. The shock Hugoniot and shock initiation sensitivities were measured in wedge tests. Intermediate velocity transitions were noted. A sensitivity anomaly near 4 GPa was discovered for 〈110〉 orientations. Chemiluminescent phenomena associated with this anomaly were studied using framing photography and uv/visible spectroscopy. Both plane-wave explosive and gas-gun impact experiments were done. Analysis of the steric hindrance occurring during edge dislocation motion in the shear flow associated with shock-induced uniaxial strain was done. The results corroborate the hypothesis that the orientation dependence of shock initiation sensitivity is due to the anisotropy of plastic flow, that is, the relative ease of slip in different orientations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349253
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  • 6
    Electronic Resource
    Electronic Resource
    In situ laser deposition of superconducting YBa2Cu3O7−x thin films on GaAs substrates (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 7170-7172 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Highly c-axis oriented superconducting YBa2Cu3O7−x (YBCO) thin films with a zero-resistance temperature of 85.5 K and a critical current density of 1.9×103 A/cm2 at 77 K and zero field, respectively, have been deposited on GaAs substrates by in situ laser ablation. A barrier layer using a combination of yttrium-stabilized ZrO2 (YSZ) and Si3N4 proved to be a most successful buffer on GaAs when YBCO was deposited at relatively high temperature, around 650 °C. The electrical properties of the YBCO films were very dependent on YSZ deposition conditions. The electrical and structural relationship between YBCO films and the YSZ deposition conditions is further investigated by cross-section scanning electron microscopy and Auger electron spectroscopy depth profiling.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349756
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  • 7
    Electronic Resource
    Electronic Resource
    Characterization of the Ag/YBa2Cu3O7−x contact in thin films (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 6336-6340 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Silver (Ag) contacts to very thin superconducting YBa2Cu3O7−x films were prepared by thermal evaporation. The nature of the Ag/YBa2Cu3O7−x contact during thermal treatment was in situ investigated by a combination of three- and four-terminal resistance measurements. The experimental results suggested that the interaction between Ag and the YBa2Cu3O7−x film began at a temperature of around 370 °C. The contact resistance measurement for different films also demonstrated that the contact property was a strong function of the film quality and surface conditions. The lack of reproducibility in forming a low-resistance contact to very thin YBa2Cu3O7−x films and the high probability of degrading the film quality after thermal treatment of the contact might be due to the excess Ag doping in YBa2Cu3O7−x. Ag island formation, as revealed by scanning electron microscopy after thermal treatment of the contact, is a limitation of Ag for use as a good contact electrode for very thin superconducting films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346878
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  • 8
    Electronic Resource
    Electronic Resource
    Radio-frequency plasma potential variations originating from capacitive coupling from the coil antenna in inductively coupled plasmas (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 3428-3434 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The radio-frequency plasma potential in a stove top inductively coupled plasma source is measured by a capacitive probe. The experimental results are compared to a crude circuit model which accounts for capacitive coupling between the rf coil and the bulk plasma. The capacitive coupling model has three terms: the dielectric window capacitance, the sheath capacitance between the dielectric window and the bulk plasma, and the bulk plasma to ground sheath capacitance. The crude circuit model predictions are verified by quantitative comparison with the measured rf plasma potential in the bulk argon plasma at pressures from 1 to 20 mTorr and radio-frequency (13.56 MHz) plasma power levels from 60 to 1000 W. Finally, the measured ion energy spectrum, as determined by a retarding potential analyzer, agrees with rf plasma potential measurements over the entire range of experimental conditions. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.369700
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  • 9
    Electronic Resource
    Electronic Resource
    Reflection absorption infrared spectroscopy at the Daresbury SRS : Proceedings of the 4th international conference on synchrotron radiation instrumentation (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 1547-1550 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The high brilliance of modern synchrotron radiation sources results in a significant intensity advantage over conventional sources in the far infrared region of the spectrum. For applications with inherently low étendue, such as reflection absorption infrared spectroscopy (RAIRS) of surfaces, this advantage extends into the mid-infrared (IR) region, to 1000 cm−1 or higher. The spectroscopic region between 100 and 1000 cm−1 is of particular interest in surface science since it includes the vibrational modes of the majority of direct bonds between the surface and adsorbate, but the low intensity of conventional sources renders investigations of this region difficult. In this paper, we discuss the design criteria of the new Daresbury infrared beamline.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143807
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  • 10
    Electronic Resource
    Electronic Resource
    A least squares method for fitting diffusion data to the Whipple/Suzuoka equations for grain boundary diffusion (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 84 (1998), S. 3586-3592 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A least squares computational method, GBFIT, of fitting experimental diffusion data to the Whipple/Suzuoka equations for grain boundary diffusion is described. The basic equations have been extended to include diffusion within the grain boundary so that GBFIT is applicable to Harrison's type B and/or C kinetics. GBFIT contains no approximations or assumptions, other than those made by Whipple, and requires the grain boundary half-width, a, the volume diffusivity, D, and anneal time, t, to be specified for a given data set. The fitting parameters are L, the half distance between parallel grain boundaries, and D′/D where D′ is the diffusivity in the grain boundary. Examples of the use of GBFIT are presented in which experimental diffusion profiles in polycrystals and bicrystals, taken from the literature, are analyzed. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.368534
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