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  • 1
    Electronic Resource
    Electronic Resource
    Oscillator strength and rare gas-induced broadening of the electric-quadrupole transition 4s2 1S0-4s3d 1D2 in calcium (1982)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 86 (1982), S. 676-677 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100394a017
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  • 2
    Electronic Resource
    Electronic Resource
    Absorption studies of the collision-induced-dipole transition associated with the 4s2 1S(o)-4s3d 1D2 transition in calcium in the prsence of rare gases (1982)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 86 (1982), S. 678-681 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100394a018
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  • 3
    Electronic Resource
    Electronic Resource
    Observation of continuum absorption spectra in far wings of the Yb resonance line broadened by He, Ne, Ar, Kr, Xe, and Yb (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 95 (1991), S. 8083-8088 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We have determined reduced absorption coefficients in far wings of the Yb (6s2)1S0–(6s6p)1P1 line broadened by He, Ne, Ar, Kr, Xe, and Yb. We find a prominent blue-satellite peak for all perturbers and undulations between the satellite peak and the line center for Ne, Ar, Kr, and Xe. Analyzing the satellite band with the aid of the unified Franck–Condon method, we obtain the position and the height of the extremum on the difference potential-energy curves concerned. We have also observed collision-induced-dipole absorption bands associated with the transition (6s2)1S0–(6s5d)3D2 of atomic Yb for Ne, Ar, Kr, and Xe perturbers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.461815
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  • 4
    Electronic Resource
    Electronic Resource
    Observation of collision-induced-dipole absorption bands in strontium–rare-gas mixtures. II. Bands involving high-lying states (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 4499-4503 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We have observed many collision-induced-dipole (CID) absorption bands arising from the transitions between quasimolecular ground and high-lying (n≤10) states in the strontium–rare-gas systems. For each absorption band, we have measured the energy shift of the absorption peak from the energy of the correlating atomic forbidden transition and the effective oscillator strength per unit perturber density fCID/Np. The shift is roughly proportional to the electron scattering length L0 for each rare-gas atom, whereas the fCID/Np is roughly proportional to L20. The shift decreases in general as the principal quantum number n increases, and increases as one goes from the s state to the d state, and to the degenerate manifold state with l≥3. These general features of the shift and fCID/Np are consistent with the predictions by a simple Fermi-potential model, suggesting the important role of the interaction between a Rydberg electron and a rare-gas atom in the CID absorption processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456788
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  • 5
    Electronic Resource
    Electronic Resource
    Blue satellite structure of the Ba resonance line broadened by rare gases (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 97 (1992), S. 9492-9493 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.463277
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  • 6
    Electronic Resource
    Electronic Resource
    Observation of far-wing absorption bands of the Ba 6s2 1S0–5d6p 1P1 line broadened by rare gases (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 94 (1991), S. 1903-1906 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We have determined reduced absorption coefficients on far wings of the Ba 6s2 1S0–5d6p 1P1 line broadened by He, Ne, Ar, Kr, and Xe. Using the unified Franck–Condon theory, we analyzed the blue satellite band observed for each of the He, Ne, and Ar perturbers and obtained the position and the height of the extremum of the difference potential-energy curve to be 6.5±1.5 A and 251±4 cm−1 for He, 7.6±2 A and 114±2 cm−1 for Ne, and 7.4±2 A and 70±2 cm−1 for Ar. We have also observed the collision-induced–dipole absorption bands associated with the Ba 6s2 1S0–6s7s 1S0 forbidden transition for all rare-gas perturbers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.460712
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  • 7
    Electronic Resource
    Electronic Resource
    Observation of collision-induced-dipole absorption bands in strontium–rare-gas mixtures. I. The 5s–4d bands (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 4495-4498 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Reduced absorption coefficients have been measured for the collision-induced-dipole (CID) absorption bands associated with the 5s–4d transition of atomic strontium perturbed by He, Ne, Ar, Kr, Xe, and Sr. The main CID absorption band, assigned to 5sΣ–4dΣ, extends from the position of the atomic 5s–4d transition towards the shorter-wavelength side for every perturber. For Xe and Kr, an additional small absorption band is seen at the foot of the atomic 5s–4d transition. The former 5sΣ–4dΣ band is interpreted to result from collisional mixing of the 5p state of atomic Sr into the molecular 4dΣ state for small internuclear separations, while the latter band is interpreted to result from the collisional quadrupole (strontium)–dipole (Xe or Kr) interaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456787
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  • 8
    Electronic Resource
    Electronic Resource
    Epitaxial growth of transparent p-type conducting CuGaO2 thin films on sapphire (001) substrates by pulsed laser deposition (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 1790-1793 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Transparent p-type conducting CuGaO2 thin films were prepared on α-Al2O3 (001) single-crystal substrates by pulsed laser deposition. The films were grown epitaxially on the substrates in an as-deposited state. X-ray pole figure analysis revealed that the films were composed of two types of epitaxial grains, both with c axes oriented perpendicular to the surface and a axes rotated 60° with respect to each other around the c axis. Observation of the CuGaO2 thin films by atomic force microscopy and high-resolution transmission electron microscopy substantiated this conclusion. The films have high optical transparency (∼80%) in the visible region, and the energy gap of CuGaO2 for direct allowed transition was estimated to be 3.6 eV. p-type conductivity was confirmed by Seebeck and Hall measurements. The electrical conductivity, carrier (positive hole) density, and Hall mobility of the films at room temperature were 6.3×10−2 S cm−1, 1.7×1018 cm−3, and 0.23 cm2 V−1 s−1, respectively. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1337587
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  • 9
    Electronic Resource
    Electronic Resource
    Observation of pair absorption and self-broadening in Ba vapor (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 94 (1991), S. 1907-1912 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Reduced absorption coefficients γBaBa were measured for the far-wing absorption of the self-broadened Ba6s2 1S0–5d6p 1P1 line, Ba(6s2 1S0) +Ba(6s2 1S0)+(h-dash-bar)ω → Ba*(5d6p 1P1)+Ba(6s21 S0)and the pair absorption Ba(6s2 1S0)+Ba(6s2 1 S0) +(h-dash-bar)ω→Ba*(6s6p 1P1 +Ba*(6s5d 1D2). The self-broadening shows the red-shaded asymmetric profile: γBaBa on the red wing is proportional to Δν−3/2, where Δν is the detuning from the line center. The pair absorption shows a broad asymmetric peak having a blue tail and a blue satellite. The estimated γBaBa, which is based on the quasistatic line-broadening theory and the long-range dipole–dipole interaction between the relevant atomic excited levels, shows reasonable agreement for the red wing of the self-absorption whereas it gives larger values by a factor of 3 for the blue tail of the main peak for the pair absorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.459911
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  • 10
    Electronic Resource
    Electronic Resource
    Carrier generation in highly oriented WO3 films by proton or helium implantation (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 92 (2002), S. 2017-2022 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Implantation of H+ or He+ ions into highly oriented WO3 films, which were deposited on sapphire R-plane substrates by the pulsed laser deposition method, was carried out to generate carrier electrons. X-ray diffraction measurements revealed that the films consisted of only the two types of grains that were epitaxially grown with their c axes perpendicular to the surface of the substrate. After implantation to a dose of 1×1017 cm−2, a remarkable increase in conductivity at 300 K was observed to 200 Scm−1 for H+ implantation or to 3 Scm−1 for He+ implantation. The efficiency of carrier generation was ∼60% for H+ implantation or ∼10−3% for He+ implantation. This striking difference demonstrates that the chemical effect of bronze formation is much more effective for carrier generation in WO3 than is the physical effect of oxygen vacancy formation by nuclear collision processes. The resulting conductivity of the oriented films was higher by 1–3 orders of magnitude than that of the corresponding polycrystalline film prepared by the rf sputtering method. Hall mobility in the oriented films (∼1 cm2 V−1 s−1) was as high as that (1–2 cm2 V−1 s−1) in single-crystal Na0.40WO3 or WO2.99 and was higher by several orders of magnitude than that in polycrystalline films. The results of Hall voltage and x-ray diffraction measurements led to the conclusion that the higher conductivity in the highly oriented films mainly originates from an increase in carrier mobility, which results from decreases in grain boundary effects as scattering centers. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1496120
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