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  • American Institute of Physics (AIP)  (4)
  • Wiley-Blackwell  (3)
  • 1985-1989  (7)
  • 1
    Electronic Resource
    Electronic Resource
    Magnetic behavior of CeFe2: Effects of ruthenium substitution (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 4094-4095 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report ac-susceptibility measurements on the Laves phase compounds Ce (Fe1−xRux)2 with x=0.02, 0.04, and 0.06. The results show that the ferromagnetic alignment of Fe moments seems to be very easily disrupted by substitution of Ru on the Fe sites. All the three compounds, as well as showing the para- to ferromagnetic transition, indicate another transition at lower temperature. In the case of the x=0.02 compound, the character of the susceptibility at the lower transition is similar to that seen in reentrant spin glasses, while in the compounds richer in Ru the suppression of the low-field response is much more drastic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340560
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A novel method for depth profiling and imaging of semiconductor devices using capacitive coupling voltage contrast (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 62 (1987), S. 4909-4915 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A scanning electron microscope was used in the voltage contrast mode to examine the relationship between dynamic secondary electron emission from passivated devices and buried structure depth. A primary electron beam energy of 500 eV was used. Depth measurement was performed on floating structures with an average error of 6.59%, 4.93% standard deviation, over a depth range of 0.04–0.76 μm. Further, a method of producing capacitive coupling voltage contast (CCVC) images of unbiased devices was developed, having a spatial resolution of better than 1 μm micron through passivation. A modified version of the Gorlich model for CCVC decay is presented to explain the experimental results [S. Gorlich, K. D. Herrmann, and E. Kubalek, in Proceedings of the Microcircuit Engineering 84 Conference (Academic, London, 1985)].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338999
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Nonlinear temperature dependence of the refractive index of polycrystalline silicon films and the influence of microstructural disorder (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 2072-2076 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The optical properties of thin films are known to be affected by microstructural inhomogeneities. In this paper we study, using ellipsometry, the influence of microstructural disorder on the refractive index at 632.8 nm and on its dependence on temperature in the range 300–700 K in the case of thin noncrystalline low-pressure chemical-vapor deposition silicon films. It is found that films with large amorphous component have a behavior distinct from that shown by polycrystalline films. In particular, both the refractive index n and the thermo-optic coefficient dn/dT at room temperature have larger values for amorphous films than for polysilicon films. Furthermore, the thermo-optic coefficient dn/dT is found to vanish at about 500 K in the case of highly noncrystalline films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.341110
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  • 4
    Electronic Resource
    Electronic Resource
    Possible analog gain in a current injection Josephson network (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 59 (1986), S. 2087-2090 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A possible analog gain in Cooper-pair tunneling mode in a current injection Josephson network is theoretically investigated. The network consists of three Josephson junctions A, B, and C, and its gain can be widely controlled by varying the external shunt resistances of junctions B and C. Two different configurations of the planar structure of the network are suggested and their detailed principles of operation are explained. It is expected that the network will function at a higher speed than that possible in an amplifying device working in quasiparticle mode. A comparison between the present network and Faris QUITERON is also given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.336396
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  • 5
    Electronic Resource
    Electronic Resource
    Use of coupled-cluster based linear response theory and multireference hermitian MBPT to IP calculations of HF (1986)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 29 (1986), S. 205-210 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: We report in this paper the results of outer and inner valence IP calculations for the HF molecule using two different many-body methods for the direct evaluation of energy differences. The first is the nonperturbative coupled-cluster based linear response theory (LRT) and the second is the hermitian open-shell many-body perturbation theory (MBPT). A Huzinaga-Dunning (9s5p→ 5s3p/3s) basis has been used. LRT uses an “ionization operator” S as in the equation of motion method (EOM) to generate the ionized states from a coupled-cluster type of ground state. S is chosen to consist of single ionization and ionization-cum-shake-up operators, thus treating the Koopmans as well as the shake-up states on equal footing. LRT would thus be capable of computing both the outer and the inner valence regions with equal facility. This is borne out by the results. For the open-shell MBPT, the model space is chosen to be spanned by the singly ionized determinants. The convergence of the results for the inner valence region is slow, and the results obtained from the [2, 1] Pade' approximants are presented. Unlike the LRT, the inner valence region is not reproduced with full complexity in MBPT, indicating that it is essential to modify the theory by way of expanding the model space to contain the shake-up determinants also.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560290210
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  • 6
    Electronic Resource
    Electronic Resource
    Finite-element models of viscoelasticity and diffusion in adhesively bonded joints (1988)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 26 (1988), S. 2531-2546 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The paper contains a description of the finite-element model based on Schapery's non-linear viscoelastic constitutive equation for the adhesive, a non-linear generalized Fickean diffusion model and an updated Lagrangian formulation of a two-dimensional stress state, to analyse adhesively bonded joints. The finite-element analysis program, called NOVA, is used to analyse a number of adhesive joints, and the results are compared with existing experimental results and analytical solutions.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620261111
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  • 7
    Electronic Resource
    Electronic Resource
    Nuclear magnetic resonance IIIFor Part II see K. M. Biswas, R. N. Dhara and H. Mallik, Indian J. Chem. in press.-13C NMR spectral studies on substituted indoles (1985)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 23 (1985), S. 218-220 
    Details
    ISSN: 0749-1581
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 13C signal assignments of 3-ethyl-1-methylindole (1), 1-methyl-3-phenylindole (3), 1,3-dimethyl-2-phenylindole (5), 1-methyl-2,3-diphenylindole (10), 1,5-dimethyl-2,3-diphenylindole (12), 7-methoxy-2,3-diphenylindole (13), 7-methoxy-4-methyl-2,3-diphenylindole (14) and 1-(7-methoxy-4-methyl-2,3-diphenyl-6-indolyl)-1-(7-methoxy-2,3-diphenyl-4-indolyl)methane (15) are reported. Contrary to an earlier report on monophenylindoles, the para carbons of the phenyl groups of 3, 5, 10 and 12-15 resonate at lower frequencies than their ortho carbons. The methoxy carbon at position 7 in 15 absorbs at a higher frequency than other similar carbons in 13-15 owing to steric inhibition to resonance.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260230319
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