Zobrazeno 1 - 10
of 70
pro vyhledávání: '"E. S. Hellman"'
Autor:
E. S. Hellman
Publikováno v:
The Journal of Electronic Publishing. 22
Publikováno v:
Journal of Materials Research. 13:1774-1779
High angle boundaries in Ba1−xKxBiO3 are superconductor-insulator-superconductor (SIS) Josephson tunnel junctions of a quality unequaled among the high temperature superconducting oxides. Electron microscopy of 24° [001] tilt boundaries reveals no
Autor:
E.H. Hartford, E. S. Hellman
Publikováno v:
Physical Review B. 52:6822-6828
The asymmetric background conductance linear in bias voltage usually observed in ${\mathrm{Ba}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{K}}_{\mathit{x}}$${\mathrm{BiO}}_{3}$ superconductor-insulator-normal (SIN) tunnel junctions is associated
Publikováno v:
Physica C: Superconductivity. 251:133-139
The properties of junctions made by growing superconducting Ba 1− x K x BiO 3 (BKBO) epitaxially on superconducting La 1.85 Sr 0.15 CuO 4 (LSCO) epitaxial films depend on the orientation of the La 1.85 Sr 0.15 CuO 4 films. Unusual features in the c
Publikováno v:
Physical Review B. 50:643-646
Publikováno v:
Physical Review B. 48:6626-6631
In ${\mathrm{Ba}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{K}}_{\mathit{x}}$${\mathrm{BiO}}_{3}$ multidomain films grown on ${\mathrm{LaAlO}}_{3}$ substrates we find evidence for hysteretic Josephson-junction behavior. The junctions exhibit cri
Publikováno v:
Physical Review B. 47:14510-14513
Quasiparticle-tunneling measurements on sandwich junctions patterned from molecular-beam-epitaxy-grown ${\mathrm{Ba}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{K}}_{\mathit{x}}$${\mathrm{BiO}}_{3}$/${\mathrm{BaBi}}_{2}$${\mathrm{O}}_{\mathit{y}}
Autor:
E.H. Hartford, E. S. Hellman
Publikováno v:
Physical Review B. 47:11346-11353
Measurements of the normal-state resistivity and Hall effect on a variety of epitaxial ${\mathrm{Ba}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{K}}_{\mathit{x}}$${\mathrm{BiO}}_{3}$ films show two different contributions to the electronic transp
Publikováno v:
Physica C: Superconductivity. 205:347-353
The nucleation and growth of barium bismuth oxide thin films on MgO has been examined using transmission electron microscopy (TEM), Rutherford backscattering spectrometry (RBS), and reflection high-energy electron diffraction (RHEED). Analysis of the
Publikováno v:
Physical Review B. 46:1182-1187
Broad-range reflectance and ellipsometric spectra of high-quality epitaxial superconducting Ba 1-x K x BiO 3 thin films are reported. From these data, accurate spectral functions of Ba 1-x K x BiO 3 have been obtained. They are found to be quite simi