ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • American Physical Society  (68)
  • American Institute of Physics (AIP)  (32)
  • Cell Press  (19)
  • American Meteorological Society  (17)
  • 1990-1994  (130)
  • 1950-1954  (6)
Collection
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Liquid silicide formation on the Si wafer free surface during Ni diffusion at 1200 °C (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 196-203 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An investigation of nickel diffusion in silicon wafers at 1200 °C, which is above a few Ni-Si eutectic and peritectic temperatures, has been performed. Czochralski Si wafers with nickel film on the back surfaces and mechanical damages on the front surfaces were annealed in different ambients for various periods of time. The wafers annealed in vacuum showed that a liquid phase rich in nickel has been formed at their front (initially free) surfaces at the annealing temperature. The amount of the liquid-phase material increases with an increase of the annealing time. After cooling down, the solidified materials showed various morphologies: spheres, polygons, dendrites, and terraces. The thermodynamic driving force leading to this phenomenon is attributed to the Si (free) surface energy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350736
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Micromagnetic structure of domains in Co/Pt multilayers. I. Investigations of wall structure (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 74 (1993), S. 7431-7437 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An analysis of the micromagnetic structure of domains and domain walls in Co/Pt multilayer films is reported. Magneto-optically written domains have been imaged in a scanning transmission electron microscope by using the modified differential phase contrast mode of Lorentz electron microscopy. These have been compared with computer-simulated images based on a two-dimensional model of a circular, perpendicular magnetized domain with a Bloch-like wall structure. Agreement is found for the domain and stray field contrast, but the absence of wall contrast in the experimental images indicates a more complex wall structure in the multilayer than was assumed by the model. In a further series of calculations the magnetic microstructure of a Co/Pt multilayer was modeled by solving the Landau–Lifshitz–Gilbert equations. These suggest that the wall structure varies throughout the thickness of the multilayer, allowing significant saving of magnetostatic energy through the establishment of flux closure paths close to the walls, and are consistent with experimental observations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.354964
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Micromagnetic structure of domains in Co/Pt multilayers. II. Investigations of domain structures in written marks (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 74 (1993), S. 7438-7442 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An analysis is presented of the detailed effects of varying the write parameters in Co/Pt multilayer films. Domains written thermomagnetically by laser modulation have been imaged using the modified differential phase contrast mode of Lorentz electron microscopy. The effects of different laser powers and bias fields were investigated. While the domain size increases with laser power, the bias field is found to have a profound effect on domain regularity. The periodicity of the irregular circumference of the domains written at high-bias fields closely resembles the mean repeat in the ac-demagnetized state suggesting that it arises as a relaxation phenomenon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.354965
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Investigation of the micromagnetic structure of cross-tie walls in permalloy (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 2447-2452 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The modified differential phase contrast (MDPC) mode of Lorentz electron microscopy was used to study the micromagnetic structure of cross-tie walls in permalloy. The distribution of magnetic induction along these walls is characterized and studied in detail by vector mappings calculated from MDPC image pairs. The wall thickness of the cross-tie wall is determined by fitting the calculated image signal of an analytical function to the MDPC wall profiles. A pronounced dip in the wall width is found at the center of the vortex structure of the cross-tie wall. The results are compared to theoretical calculations by Nakatani, Uesaka, and Hayashi, Jpn. J. Appl. Phys. 28, 2485 (1989).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.353102
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Mapping induction distributions by transmission electron microscopy (invited) : 35th annual conference on magnetism and magnetic materials (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 6078-6083 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The Foucault and differential phase contrast modes of transmission electron microscopy are described and their uses for mapping induction distributions in magnetic thin films compared. The former is simpler to implement but the latter can provide quantitative information to much higher spatial resolution. Examples are given of instances where each is most suitable. Foucault images recorded during in situ magnetizing experiments provide valuable information on the magnetization process in small regular particles while the detailed magnetization distribution close to walls in soft magnetic films is best investigated using modified differential phase contrast microscopy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347775
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Numerical modeling of microscopic fluid distribution in porous media (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 994-1001 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Three numerical methods have been developed to model the equilibrium distribution of fluid phases in a multiphase saturated porous medium. The basic assumption made is that the distribution of phases is governed by the static interfacial free energy of the system, such that the equilibrium phase distribution corresponds to a minimum in the total interfacial free energy of the system. The example of determining the distribution of water vapor and liquid water in 2D numerical models of the pore space in a rock is considered. Starting with a numerical model of the pore space, the objective of each method is to obtain the minimum energy configuration of water vapor and liquid water in the pore space for some set level of water saturation. Two of the methods are simple and computationally fast methods that can produce fluid distributions close to, or matching, the equilibrium configuration. These methods can, however, produce metastable configurations due to the simplistic nature of the algorithms. The third method applied to this problem is a simulated annealing method. This method consistently produced the lowest possible energy configuration. It is concluded that simulated annealing can be successfully used to numerically model fluid distribution in multiphase saturated porous media.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346666
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Time dependence of OH overtone relaxation in the hydroperoxyl radical (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 96 (1992), S. 1919-1930 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The time-dependent relaxation of zero-order O–H vibrational overtone states of nonrotating HO2 on the X 2A‘ double many-body expansion (DMBE)-I potential surface is examined. The time dependence of these states is obtained by expanding them in a large basis of all the bound molecular eigenstates as well as L2 states above dissociation. Franck–Condon factors and survival probabilities are calculated and used to determine the relaxation time scales using techniques described by Heller [E. J. Heller, Phys. Rev. A 35, 1360 (1987)]. For low overtones, the relaxation is very slow and is due mainly to isomerization. Higher O–H overtones relax much more rapidly due to dephasing and intramolecular vibrational relaxation (IVR). The time dependence of several wave packets is depicted in coordinate space.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.462093
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Prediction of the thermodynamic properties of associating Lennard-Jones fluids: Theory and simulation (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 4299-4304 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Associating Lennard-Jones (LJ) fluids have been studied at various densities, temperatures, and energies of association by simulation and theory. The association potential is modeled by a highly anisotropic square well. Monte Carlo simulations provide energy, pressure/density information and fraction of monomers. A simple theory is shown to be in good agreement with simulation results. Further, a prediction of the properties of diatomic LJ molecules is made and compared with simulation results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.458711
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Bridge function and cavity correlation function for the Lennard-Jones fluid from simulation (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 97 (1992), S. 2046-2054 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: In this paper we present the results of a Monte Carlo simulation study of the cavity correlation function y(r) for the Lennard-Jones (LJ) fluid over a range of liquidlike densities and temperatures from the triple point to supercritical conditions. We also calculate the direct correlation function c(r) from simulations of the total correlation function h(r) and the Ornstein–Zernike relationship. The bridge function B(r) is calculated by difference. We show that these new results are useful in testing integral equation theories by comparing them with Rosenfeld and Blum's prescription for the bridge function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.463142
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Henry's law constant for diatomic and polyatomic Lennard-Jones molecules (1993)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 98 (1993), S. 5662-5667 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Simulation results for the infinite dilution chemical potential of Lennard-Jones dispheres in a Lennard-Jones solvent are reported as a function of bond length at various temperatures and liquid densities. Comparisons are made with hard dispheres at infinite dilution. Predictions from theory of the infinite dilution chemical potential of linear chains of Lennard-Jones spheres in nonspherical and hydrogen bonding solvents are presented. Comparisons of the theory are made with recent simulation results for flexible chains of Lennard-Jones spheres.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.464915
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...