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  • 1
    Monograph available for loan
    Monograph available for loan
    Climate Change 2001 : The scientific basis ; contribution of Working Group I to the third assessment report of the Intergovernmental Panel on Climate Change (2001)
    Cambridge : Cambridge University Press
    Associated volumes
    Details Availability
    Call number: 12/M 01.0453 ; AWI A3-01-0215 ; PIK N 071-01-0481 ; PIK N 071-0115 ; PIK N 071-02-0351 ; PIK N 071-01-0564
    In: Climate change 2001
    Type of Medium: Monograph available for loan
    Pages: X, 881 S.
    Edition: 1st publ.
    ISBN: 0521014956
    Classification:
    Meteorology and Climatology
    Language: English
    Note: Contents: Foreword. - Preface. - Summary for Policymakers. - Technical Summary. - 1 The Climate System: an Overview. - 2 Observed Climate Variability and Change. - 3 The Carbon Cycle and Atmospheric Carbon Dioxide. - 4 Atmospheric Chemistry and Greenhouse Gases. - 5 Aerosols, their Direct and Indirect Effects. - 6 Radiative Forcing of Climate Change. - 7 Physical Climate Processes and Feedbacks. - 8 Model Evaluation. - 9 Projections of Future Climate Change. - 10 Regional Climate Information - Evaluation and Projections. - 11 Changes in Sea Level. - 12 Detection of Climate Change and Attribution of Causes. - 13 Climate Scenario Development. - 14 Advancing Our Understanding. - Appendix I Glossary. - Appendix II SRES Tables. - Appendix Ill Contributors to the IPCC WGI Third Assessment Report. - Appendix IV Reviewers of the IPCC WGI Third Assessment Report. - Appendix V Acronyms and Abbreviations. - Appendix VI Units. - Appendix VII Some Chemical Symbols used in this Report. - Appendix VIII Index.
    Location: Reading room
    Location: Reading room
    Location: A 18 - must be ordered
    Location: A 18 - must be ordered
    Location: A 18 - must be ordered
    Location: A 18 - must be ordered
    Branch Library: GFZ Library
    Branch Library: AWI Library
    Branch Library: PIK Library
    Branch Library: PIK Library
    Branch Library: PIK Library
    Branch Library: PIK Library
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  • 2
    Electronic Resource
    Electronic Resource
    New rare-earth permanent magnets with an intrinsic coercivity of 10 kOe at 500 °C (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 5660-5662 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Sm(CobalFe0.1CuxZr0.033)z magnets with higher Cu content were found to have higher intrinsic coercivity Hci at both room temperature and higher temperatures up to 500 °C. For the magnets with a ratio z=8.5, the intrinsic coercivity reaches a maximum of about 40 kOe at room temperature when the Cu content x reaches 0.088. But for the magnets with a ratio z=7.0, the intrinsic coercivity continues to increase with increasing Cu content x up to 0.128. Microstructure analysis showed that the cell size decreases while the density of lamella phase increases with increasing Cu content. A record high intrinsic coercivity of 10.8 kOe at 500 °C was obtained on a Sm(CobalFe0.1Cu0.128Zr0.033)z magnet. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.369832
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  • 3
    Electronic Resource
    Electronic Resource
    Energy transfer via a thermal capillary (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 4898-4901 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thermal radiation transfer in a cylindrical hohlraum is discussed. The mass and energy conservation equations for the ablated wall material, derived from the self-similar solution for ablative heat wave [R. Pakula and R. Sigel, Phys. Fluids 28, 232 (1985)], and coupled flux conservation equation, are solved to investigate energy redistribution inside the hohlraum. A similarity solution is obtained for a gold capillary heated by a uniform disc source, with which the re-emission flux from the wall and the energy transfer efficiency through the thermal capillary are calculated for different parametric conditions. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1403695
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  • 4
    Electronic Resource
    Electronic Resource
    Nonradiative recombination and saturation of traps in multiple intrinsic quantum wells (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 1727-1732 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have investigated the dependence of the continuous-wave photoluminescence on the laser intensity, which is affected by the trap saturation and the dominant nonradiative recombination in multiple intrinsic quantum wells. If the laser intensity is relatively low, the photoluminescence is proportional to the 1.5 power of the laser intensity. As the laser intensity increases, however, and above a critical intensity, the photoluminescence increases at a rate that is higher than square-law and finally approaches this dependence. This is the result of trap saturation. In order to examine the trap saturation in a more sensitive scale, we have calculated the dependence of the effective nonradiative decay time on the laser intensity. In addition, the laser-intensity dependences of the trapping efficiency and of the ratio of the electron and hole nonradiative decay times, have been determined for different ratios of the trapping and nonradiative recombination rates. The laser-intensity dependences of the electron and hole nonradiative decay times have also been determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356362
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  • 5
    Electronic Resource
    Electronic Resource
    Ultrafast generation of blue light by efficient second-harmonic generation in periodically-poled bulk and waveguide potassium titanyl phosphate (1998)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 873-875 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have investigated second-harmonic generation in short-period periodically-poled bulk and waveguide potassium titanyl phosphate crystals to generate blue light using subpicosecond laser pulses. For the bulk, the highest conversion efficiency is (approximate)5.5%, which is about two orders of magnitude larger than that achieved previously. For the waveguide, the highest conversion efficiency is (approximate)32%, which is about a factor of 4 higher than that obtained before. These measured values are in good agreement with our theoretical results. We have observed saturation of conversion efficiency, which sets a limit to the maximum efficiency that can be achieved. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.121972
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  • 6
    Electronic Resource
    Electronic Resource
    Amorphous silica nanowires: Intensive blue light emitters (1998)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 3076-3078 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report large-scale synthesis of silica nanowires (SiONWs) using an excimer laser ablation method. Silica was produced in the form of amorphous nanowires at a diameter of ∼15 nm and a length up to hundreds micrometers. The SiONWs emit stable and high brightness blue light at energies of 2.65 and 3.0 eV. The intensity of the emission is two orders of magnitude higher than that of porous silicon. The SiONWs may have potential applications in high-resolution optical heads of scanning near-field optical microscope or nanointerconnections in future integrated optical devices. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.122677
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  • 7
    Electronic Resource
    Electronic Resource
    Stacking faults and their effects on ferroelectric properties in strontium bismuth tantalate (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 2255-2261 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The stacking faults and their effects on ferroelectric properties in strontium–bismuth–tantalate SrBi2Ta2O9 have been studied by transmission electron microscopy (TEM) and ferroelectric hysteresis loop measurement. The structure of SrBi2Ta2O9 consists of Bi2O2 layers and double perovskite type TaO6 octahedral units. There are four possible types of nonstiochiometric stacking faults: two intrinsic faults by removing either one or two perovskite layers and two extrinsic faults by inserting either one or two perovskite layers. TEM investigation reveals that the stacking faults are the extrinsic type. The extrinsic stacking faults in high density might destroy the ferroelectricity, and the reasons are discussed. With excess Bi, the density can be held low efficiently, and with deficient Sr the stacking faults change its form.© 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1431428
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  • 8
    Electronic Resource
    Electronic Resource
    Continuous-wave photoluminescence excitation spectra of multiple narrow-stepped quantum wells: Evidence for saturation of interface traps (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 154-156 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Continuous-wave photoluminescence excitation spectra of multiple narrow-stepped quantum wells at room temperature have been measured for the first time. It has been observed that photoluminescence intensity increases stronger than proportionally to the square of the laser intensity. This phenomenon can be attributed to the radiative recombination between free carriers in parallel with the dominant nonradiative recombination on the saturable interface traps. Intensity-dependent trapping efficiency and ratio between electron and hole nonradiative decay times, and the ratio between trapping and nonradiative recombination rates have been derived from the experiment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.107000
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  • 9
    Electronic Resource
    Electronic Resource
    Observation of anomalously large blue shift of the heavy-hole photocurrent peak and optical bistability in narrow asymmetric coupled quantum wells (1991)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 59 (1991), S. 1025-1027 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Blue shift of the heavy-hole peak of the photocurrent spectra has been observed, for the first time, in narrow GaAs/Al0.4Ga0.6As asymmetric coupled quantum wells near the heavy-hole resonance. With an external reverse bias of only −2.35 V, a maximum upward shift of the apparent peak position of ∼6.1 meV has been measured at 78 K. Sharp change of the inhomogeneous linewidth of the heavy-hole peak has also been observed. cw optical bistability has been observed with the external feedback.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.106333
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  • 10
    Electronic Resource
    Electronic Resource
    Characterization of recombination processes in multiple narrow asymmetric coupled quantum wells based on the dependence of photoluminescence on laser intensity (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 2051-2053 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Continuous-wave intensity-dependent photoluminescence spectra of multiple narrow asymmetric coupled quantum wells at room temperature have been measured. At low laser intensity, the total photoluminescence intensity is primarily proportional to the square of the laser intensity due to dominant nonradiative recombination of free carriers at nearly saturated interface traps. At high laser intensity, however, the total photoluminescence intensity approaches a level proportional to the laser intensity due to radiative recombination of free carriers. Based on this transition behavior, which has been observed for the first time to the best of our knowledge, and our simple theory, the transition intensity, the nonradiative decay time of the carriers, and the intensity-dependent carrier density and photoluminescence quantum efficiency have been determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.107111
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