GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
Filter
  • AIP Publishing  (8)
  • 1990-1994  (8)
Material
Publisher
  • AIP Publishing  (8)
Person/Organisation
Language
Years
  • 1990-1994  (8)
Year
Subjects(RVK)
  • 1
    Online Resource
    Online Resource
    High critical current densities in ultrathin YBa2Cu3O7−δ films sandwiched between (Pr x Y1− x )Ba2Cu3O7−δ layers
    AIP Publishing ; 1993
    In:  Applied Physics Letters Vol. 62, No. 11 ( 1993-03-15), p. 1289-1291
    Details
    In: Applied Physics Letters, AIP Publishing, Vol. 62, No. 11 ( 1993-03-15), p. 1289-1291
    Abstract: YBa2Cu3O7−δ (YBCO) films with nominal thicknesses of 1–4 unit cells were grown by pulsed laser deposition using (PrxY1−x)Ba2Cu3O7−δ [(PrxY1−x)BCO] (1≥x≥0) as buffer layers and cap layers. The films of 1 unit cell thick were superconducting for all the x values while Tc increased when x was reduced. For adjacent layers of (Pr0.6Y0.4)BCO which is semiconducting, a Tc of 43 K and Jc of 2×106 A/cm2 for B∥ab and 4×105 A/cm2 for B⊥ab at B=7 T and 4.2 K were obtained in a one-unit cell thick YBCO layer. The Jc values of a few unit cell thick YBCO layers nearly approached that of thick YBCO films. The results suggest the absence of significant weak-link effects in these films.
    Type of Medium: Online Resource
    ISSN: 0003-6951 , 1077-3118
    URL: Article
    DOI: 10.1063/1.108710
    RVK:
    UA 1000
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1993
    detail.hit.zdb_id: 211245-0
    detail.hit.zdb_id: 1469436-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Neutron production in dense x -pinch plasmas produced from deuterated polyethylene fibers
    AIP Publishing ; 1991
    In:  Journal of Applied Physics Vol. 70, No. 11 ( 1991-12-01), p. 6712-6717
    Details
    In: Journal of Applied Physics, AIP Publishing, Vol. 70, No. 11 ( 1991-12-01), p. 6712-6717
    Abstract: A novel intense source of 2.45 MeV neutrons is described. Exploratory experiments with deuterated polyethylene fibers in an x-pinch configuration have been performed using 370-kA, 80-ns current pulses. Up to 4.5×108 neutrons per pulse have been produced. Compared to a z pinch, an x pinch produced about the same number of neutrons for the same current, but the x-pinch neutron source may be 1 mm or less in diameter.
    Type of Medium: Online Resource
    ISSN: 0021-8979 , 1089-7550
    URL: Article
    DOI: 10.1063/1.349845
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1991
    detail.hit.zdb_id: 220641-9
    detail.hit.zdb_id: 3112-4
    detail.hit.zdb_id: 1476463-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    K -shell x-ray yield scaling for aluminum x -pinch plasmas
    AIP Publishing ; 1993
    In:  Journal of Applied Physics Vol. 73, No. 12 ( 1993-06-15), p. 8134-8138
    Details
    In: Journal of Applied Physics, AIP Publishing, Vol. 73, No. 12 ( 1993-06-15), p. 8134-8138
    Abstract: We report results from experiments performed to measure and characterize the intense K-shell radiation from aluminum x-pinch plasmas at peak driving currents ranging from 280 kA to 1.0 MA. Single pulse aluminum K-shell (predominantly line radiation at 1.6–2 keV) x-ray yields ranged from 7.6 J at 290 kA to 240 J at 1.0 MA. In the range from 280 to 470 kA, the yield scales with current to the power of 3.6, whereas nonoptimized K-shell yields at 800 kA and 1.0 MA indicate a power of about 3 or higher.
    Type of Medium: Online Resource
    ISSN: 0021-8979 , 1089-7550
    URL: Article
    DOI: 10.1063/1.353452
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1993
    detail.hit.zdb_id: 220641-9
    detail.hit.zdb_id: 3112-4
    detail.hit.zdb_id: 1476463-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Characterization of X -pinch plasma (abstract)
    AIP Publishing ; 1990
    In:  Review of Scientific Instruments Vol. 61, No. 10 ( 1990-10-01), p. 2815-2815
    Details
    In: Review of Scientific Instruments, AIP Publishing, Vol. 61, No. 10 ( 1990-10-01), p. 2815-2815
    Abstract: The X pinch, in which two or more crossed wires are stretched between the electrodes of the 0.5 TW LION accelerator, is being studied as a bright x-ray source for photopumping an extreme ultraviolet (XUV) laser and for microlithography. Crossed Al or Mg wires with line density from 10 to 400 μg/cm have been imploded by up to 550 kA current for 40 ns. High density and temperature bright spots have been observed at the crossing point. Diagnostics include x-ray pinhole cameras, streak and framing cameras, and XUV x-ray spectrographs. The visible streak camera provides time and radial (or axial) spatially resolved information on the pinch plasma, while the 5 ns single frame camera gives spatially resolved images. The size of the soft x-ray hot spots (less than 40 μm diameter) was estimated from the time-integrated pinhole image. An x-ray spectrograph with a curved mica crystal was used to record K-shell emission spectra. From the line intensity ratios of the K-shell radiation, plasma densities of ∼1020 cm−3 and temperatures about 400 eV were obtained. This work was supported in part by the Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375-5000, under ONR contract N00014-90-J-2002 and NSF grant 89-19960.
    Type of Medium: Online Resource
    ISSN: 0034-6748 , 1089-7623
    URL: Article
    DOI: 10.1063/1.1141793
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1990
    detail.hit.zdb_id: 209865-9
    detail.hit.zdb_id: 1472905-2
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Structural characterization and microwave loss of Nd1.85Ce0.15CuO4− y superconducting thin films on yttria-stabilized zirconia buffered sapphire
    AIP Publishing ; 1994
    In:  Applied Physics Letters Vol. 64, No. 3 ( 1994-01-17), p. 375-377
    Details
    In: Applied Physics Letters, AIP Publishing, Vol. 64, No. 3 ( 1994-01-17), p. 375-377
    Abstract: We have grown superconducting Nd1.85Ce0.15CuO4−y (NCCO) thin films on (11̄02) sapphire using a yttria-stabilized zirconia (YSZ) buffer layer, which has been demonstrated to be the best material for the growth of n-type superconducting NCCO thin films. The films are c-axis oriented, epitaxially grown with a small mosaic spread of 0.2° and a Rutherford backscattering spectroscopy channeling yield of ∼9%. Cross-sectional transmission electron microscopy images reveal a sharp interface between NCCO and YSZ. The microwave surface resistance of NCCO films on YSZ buffered sapphire at 9.6 GHz is only 80 μΩ at 4.2 K in zero magnetic field, which is comparable to Y1Ba2Cu3O7−y films at similar reduced temperature, as a consequence of the decrease of structural imperfection in the film. The temperature dependence of the surface resistance and magnetic penetration depth in these films further confirms the s-wave BCS nature of NCCO.
    Type of Medium: Online Resource
    ISSN: 0003-6951 , 1077-3118
    URL: Article
    DOI: 10.1063/1.111152
    RVK:
    UA 1000
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1994
    detail.hit.zdb_id: 211245-0
    detail.hit.zdb_id: 1469436-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    X -pinch soft x-ray source for microlithography
    AIP Publishing ; 1990
    In:  Applied Physics Letters Vol. 57, No. 20 ( 1990-11-12), p. 2083-2085
    Details
    In: Applied Physics Letters, AIP Publishing, Vol. 57, No. 20 ( 1990-11-12), p. 2083-2085
    Abstract: A novel soft x-ray source for submicron resolution lithography is described. Exploratory experiments with the x-pinch dense plasma radiation source have been performed using a 500 kA, 40 ns pulsed power generator. About 33 J of magnesium K-shell radiation (1.3–1.5 keV) and 10 J of aluminum K-shell radiation (1.6–1.7 keV) have been produced in a source approximately 0.5 mm or less in diameter during a single pulse. The yield increased rapidly with current, implying the possibility of exposing a resist at a distance of 40 cm using a & lt;750 kA pulser in as few as ten pulses.
    Type of Medium: Online Resource
    ISSN: 0003-6951 , 1077-3118
    URL: Article
    DOI: 10.1063/1.103948
    RVK:
    UA 1000
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1990
    detail.hit.zdb_id: 211245-0
    detail.hit.zdb_id: 1469436-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Superconducting and structural properties of Nd2− x Ce x CuO4− y thin films on perovskite and fluorite substrates
    AIP Publishing ; 1994
    In:  Journal of Applied Physics Vol. 75, No. 4 ( 1994-02-15), p. 2119-2124
    Details
    In: Journal of Applied Physics, AIP Publishing, Vol. 75, No. 4 ( 1994-02-15), p. 2119-2124
    Abstract: High quality epitaxial Nd2−xCexCuO4−y (NCCO) thin films were fabricated on various substrates by pulsed-laser deposition using N2O reactive gas. The similarities and dissimilarities of the superconducting and structural properties of NCCO films, on perovskite-type substrates such as LaAlO3, NdGaO3, and SrTiO3 and on a fluorite-type substrate of yttria-stabilized zirconia (YSZ), were investigated systematically as a function of film thickness by transport measurements and structural analysis. A remarkable reduction of Tc was observed when the film was thinner than a critical thickness, which strongly depends on the substrate. The critical thicknesses for which Tc is 80% of Tc max are 1200, 1000, 600, and 450 Å for LaAlO3, NdGaO3, SrTiO3, and YSZ, respectively. YSZ turns out to be the best candidate for the growth of very thin NCCO films among the substrates studied. These results show a strong correlation between the strain and Tc in NCCO thin films and point the way to the fabrication of n-type superconducting electric field devices using ultrathin NCCO films.  
    Type of Medium: Online Resource
    ISSN: 0021-8979 , 1089-7550
    URL: Article
    DOI: 10.1063/1.356318
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1994
    detail.hit.zdb_id: 220641-9
    detail.hit.zdb_id: 3112-4
    detail.hit.zdb_id: 1476463-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Modeling the coaxial double z-pinch for the Al  x i  - Mg  i x laser at 228 Å
    AIP Publishing ; 1993
    In:  Journal of Applied Physics Vol. 74, No. 7 ( 1993-10-01), p. 4303-4309
    Details
    In: Journal of Applied Physics, AIP Publishing, Vol. 74, No. 7 ( 1993-10-01), p. 4303-4309
    Abstract: A magnetically embedded coaxial z-pinch configuration is proposed for the resonant photoexcitation laser at 228 Å in Mg ix pumped by the 48.338 Å line of Al xi. This laser configuration consists of an annular Al z-pinch plasma imploded (final electron density of about 1020 cm−3) onto an inner, Mg plasma (final electron density of about 1018 cm−3) on the axis. The Mg plasma is confined and stabilized by an axial magnetic Bz field, which is compressed to a final magnitude of about 130 T from an initially applied field of about 1 T by the Al implosion, thus serving to stabilize and physically separate the Al and Mg plasmas. Separate numerical simulations of the Al and Mg plasmas designed to guide exploratory experiments are reported. A 0D dynamic z-pinch model captures the Al implosion, including trapped Bz field and power losses due to line radiation. Initial conditions required to produce the intense Al xi pump line at 48.338 Å are derived assuming an 800 kA, 100 ns implosion current pulse. Assuming a pinch length of 2 cm, a pump power of 3.5 GW/eV is predicted for the 48.338 Å Al xi line. With the pump so defined, a separate, detailed atomic physics model is used to study the photoexcitation kinetics in the Mg ix lasant plasma. It is found that a gain of 1.0–1.5 cm−1 is obtainable on the 2s3d 1D2 - 2s4f 1F3 transition at 228 Å in Mg ix.
    Type of Medium: Online Resource
    ISSN: 0021-8979 , 1089-7550
    URL: Article
    DOI: 10.1063/1.354394
    Language: English
    Publisher: AIP Publishing
    Publication Date: 1993
    detail.hit.zdb_id: 220641-9
    detail.hit.zdb_id: 3112-4
    detail.hit.zdb_id: 1476463-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...