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11 Jul 1988

Volume 53, Issue 2, pp. 83-165

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Rapid thermal annealing of YBaCuO films on Si and SiO2 substrates

M. Aslam, R. E. Soltis, E. M. Logothetis, R. Ager, M. Mikkor, W. Win, J. T. Chen, and L. E. Wenger

Appl. Phys. Lett. 53, 153 (1988); http://dx.doi.org/10.1063/1.100578 (3 pages) | Cited 12 times

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A very rapid thermal annealing technique has been employed on sputter‐deposited YBaCuO films. After an O2 anneal (with or without a N2 preanneal) at temperatures as high as 920 °C for 8–12 s, films on (100)Si and on SiO2 /Si substrates exhibited superconductivity onsets above 95 K and zero resistance in the range 40–66 K.
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74.78.-w Superconducting films and low-dimensional structures
74.70.-b Superconducting materials other than cuprates
81.40.Rs Electrical and magnetic properties related to treatment conditions
74.25.Sv Critical currents
74.62.Bf Effects of material synthesis, crystal structure, and chemical composition

Highly oriented superconducting thin films derived from the sol‐gel process

S. A. Kramer, G. Kordas, J. McMillan, G. C. Hilton, and D. J. Van Harligen

Appl. Phys. Lett. 53, 156 (1988); http://dx.doi.org/10.1063/1.100579 (3 pages) | Cited 18 times

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Highly oriented YBa2Cu3O6+x superconducting thin films have been developed via sol‐gel processing. Film deposition involved spin coating a ‘‘partially hydrolyzed’’ metal‐alkoxide stock solution onto single‐crystal [100] SrTiO3 substrates. Although scanning electron microscopy revealed the film consisted of oriented polycrystallites, from the broad statistical x‐ray diffraction data the 1000 Å film ‘‘appeared’’ to be single crystal with moderate mosaic spread (i.e., full width at half‐maximum was 0.3° in θ at a 2θ of 55°). No twinning of the crystal was found in any of the three orthogonal directions (2θ, ϕ, χ). The onset temperature Tc for the film was 55 K while the critical current density Jc was found to be 102 A/cm2.
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74.78.-w Superconducting films and low-dimensional structures
81.15.Lm Liquid phase epitaxy; deposition from liquid phases (melts, solutions, and surface layers on liquids)
68.55.-a Thin film structure and morphology
74.70.-b Superconducting materials other than cuprates

60–90 K superconducting phase transition in YBa2Cu3O7−δ

Donglu Shi and D. W. Capone

Appl. Phys. Lett. 53, 159 (1988); http://dx.doi.org/10.1063/1.100580 (3 pages) | Cited 24 times

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The kinetic process between the 60 and 90 K superconducting phase transition has been explored to study the oxygen ordering mechanisms. An abrupt change in Tc from 60 to 90 K is observed as the sample’s oxygen content is rapidly varied from around 6.6 to 6.9. No intermediate Tc values are obtained, which suggests an oxygen ordering instability, leading to a phase transition between the 60 and 90 K superconducting phases.
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74.70.-b Superconducting materials other than cuprates
74.25.Ha Magnetic properties including vortex structures and related phenomena
74.10.+v Occurrence, potential candidates
64.70.K- Solid-solid transitions

Molecular beam epitaxial growth of Fe/Cr multilayers on (001)GaAs

P. Etienne, G. Creuzet, A. Friederich, F. Nguyen‐Van‐Dau, A. Fert, and J. Massies

Appl. Phys. Lett. 53, 162 (1988); http://dx.doi.org/10.1063/1.100353 (3 pages) | Cited 15 times

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Molecular beam epitaxy has been used to grow single‐crystal Fe/Cr magnetic multilayer structures on homoepitaxial (001)GaAs layers. The epitaxial relationships between Fe, Cr, and GaAs were determined by in situ reflection high‐energy electron diffraction. The sharpness of the different interfaces of the Fe/Cr multilayers is illustrated by Auger electron spectroscopy sputter depth profiling, which shows that no significant intermixing occurs in the investigated growth temperature range −50 to +50 °C.
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81.15.Hi Molecular, atomic, ion, and chemical beam epitaxy
68.65.-k Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties
68.35.Fx Diffusion; interface formation
75.70.-i Magnetic properties of thin films, surfaces, and interfaces
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Comment on ‘‘Optical multistability and phase conjugation fidelity in a high‐birefringence optical fiber’’ [Appl. Phys. Lett. 51, 555 (1987)]

A. Vatarescu

Appl. Phys. Lett. 53, 165 (1988); http://dx.doi.org/10.1063/1.100354 (1 page) | Cited 1 time

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Abstract Unavailable
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42.81.Gs Birefringence, polarization
42.65.Jx Beam trapping, self-focusing and defocusing; self-phase modulation
42.65.Pc Optical bistability, multistability, and switching, including local field effects
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Response to ‘‘Comment on ‘Optical multistability and phase conjugation fidelity in a high‐birefringence optical fiber’ ’’ [Appl. Phys. Lett. 53, 165 (1988)]

S. Trillo and S. Wabnitz

Appl. Phys. Lett. 53, 165 (1988); http://dx.doi.org/10.1063/1.100418 (1 page)

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Abstract Unavailable
Show PACS
42.81.Gs Birefringence, polarization
42.65.Jx Beam trapping, self-focusing and defocusing; self-phase modulation
42.65.Pc Optical bistability, multistability, and switching, including local field effects
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