Zobrazeno 1 - 10
of 18
pro vyhledávání: '"E. H. Hartford"'
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2339848ca68d090fca20759ffe05876
https://doi.org/10.1557/jmr.1998.0250
https://doi.org/10.1557/jmr.1998.0250
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4bf8b4f18aba073202ece811a345b20
https://doi.org/10.1103/physrevb.46.1182
https://doi.org/10.1103/physrevb.46.1182
Publikováno v:
Journal of Materials Research. 7:795-800
Epitaxy of cupric oxides, such as the high temperature superconductor YBa2Cu3O7, using “vacuum” techniques requires either activated forms of oxygen, such as atomic oxygen, oxygen plasma, or ozone, or a relatively high pressure of molecular oxyge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c01d3df9a9aaf76f011bd512ac373b76
https://doi.org/10.1557/jmr.1992.0795
https://doi.org/10.1557/jmr.1992.0795
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 9:2716-2720
Using x‐ray photoelectron spectroscopy (XPS), we have investigated the effects of oxidation on RbxBa1−xBiO3, the degradation of its surface on exposure to air, and the feasibility of cleaning techniques to reverse this degradation. The sample was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf966b72e45f9664faac390ace33f6b8
https://doi.org/10.1116/1.577231
https://doi.org/10.1116/1.577231
Publikováno v:
Physical Review B. 42:923-926
This paper spectroscopically characterizes elementary electronic excitations in ${\mathrm{BaBiO}}_{3}$. We have utilized pump-and-probe spectroscopic techniques which have identified a single transient spectrum subsequent to either pulsed optical or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c632ede105e1403512544238b5ed584
https://doi.org/10.1103/physrevb.42.923
https://doi.org/10.1103/physrevb.42.923
Autor:
E. H. Hartford, E. S. Hellman
Publikováno v:
Applied Physics Letters. 64:1341-1343
Metastable solid solutions in the MgO‐CaO system grow readily on MgO at 300 °C by molecular beam epitaxy. The epitaxy displays both the reflection high‐energy electron diffraction oscillations characteristic of layer‐by‐layer growth and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d1fbd84f7c93e933c6a68b9c1c23e44
https://doi.org/10.1063/1.111928
https://doi.org/10.1063/1.111928
Publikováno v:
Physical Review B. 43:11408-11410
We report observation of circular dichroism (CD) in reflection from two bismuthate superconducting thin films, rubidium barium bismuthate. This signal is similar to that recently reported in cuprate materials, with the exception that one sample shows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d0176f5ee74f639d12fb99d3c605c85
https://doi.org/10.1103/physrevb.43.11408
https://doi.org/10.1103/physrevb.43.11408
Autor:
Jochen Mannhart, Darrell G. Schlom, J. C. Clark, E. H. Hartford, Chang-Beom Eom, E. S. Hellman
Publikováno v:
Scopus-Elsevier
The c-axis oriented YBa2Cu3O7−δ films grown on (001) yttria-stabilized cubic zirconia (YSZ) substrates often contain domains whose in-plane alignment is rotated approximately 9° from the cube-on-cube epitaxial relationship, in addition to the mor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20ca14365f2550e83ca8448afb28d61e
https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/62071
https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/62071
Autor:
Theo Siegrist, D. N. E. Buchanan, C. D. Brandle, E. S. Hellman, Igal Brener, G. W. Berkstresser, E. H. Hartford, Lynn Schneemeyer, D. Wiesmann
Publikováno v:
MRS Proceedings. 395
We report the use of ScAlMgO4 as a substrate for the epitaxial growth of wurzitic GaN. The low misfit (+1.8%) allows coherent epitaxy of GaN, as observed by RHEED. The congruent melting of ScAlMgO4 makes Czochralski growth possible, suggesting that l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06b56678a6d14f02af3ec56820f27ece
https://doi.org/10.1557/proc-395-51
https://doi.org/10.1557/proc-395-51
Autor:
E. H. Hartford, E. S. Hellman
Publikováno v:
MRS Proceedings. 341
Metastable solid-solutions in the MgO-CaO system grow readily on MgO at 300°C by molecular beam epitaxy. We observe RHEED oscillations indicating a layer-by-layer growth mode; in-plane orientation can be described by the Matthews theory of island ro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::413e2b56be7760904037093971a3f273
https://doi.org/10.1557/proc-341-127
https://doi.org/10.1557/proc-341-127