Zobrazeno 1 - 10
of 28
pro vyhledávání: '"J B, Smathers"'
Publikováno v:
Journal of Applied Physics. 90:481-487
We report on the influence of the chemical composition of the (Al, Ga)As surface on the formation of strain induced three-dimensional (3D) InAs islands. The experiments have been carried out using a molecular beam epitaxy facility combined with a sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf4179f2b69663c583d11a3dc31d9c55
https://doi.org/10.1063/1.1357784
https://doi.org/10.1063/1.1357784
Publikováno v:
Applied Physics Letters. 75:525-527
The optical absorption spectra, measured at either 77 or 300 K, of the intersubband transition in Si-doped GaAs/AlGaAs multiple quantum wells were studied before and after 1 MeV proton irradiation. The intersubband transition in samples with superlat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9793283a8c56e768ead7075dc85103f
https://doi.org/10.1063/1.124436
https://doi.org/10.1063/1.124436
Publikováno v:
Applied Physics Letters. 75:337-339
We report an in situ molecular-beam epitaxy-scanning tunneling microscopy study of three-dimensional (3D) self-organized InAs islands on AlAs surfaces. The evolution of the density and morphology of these islands is investigated as a function of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::640750c6a50ef267723b060f0fd93f2a
https://doi.org/10.1063/1.124368
https://doi.org/10.1063/1.124368
Publikováno v:
Applied Physics Letters. 72:1238-1240
We have used atomic force microscopy to investigate the surface morphology of ZnSe films grown on GaAs(001) by molecular beam epitaxy. We report the observation of nanometer scale surface clusters 400–1200 A in diameter and 60–200 A in height. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3e78935b8a80047df36e3f314d333d2
https://doi.org/10.1063/1.121025
https://doi.org/10.1063/1.121025
Publikováno v:
MRS Proceedings. 618
We have used in-situ scanning tunneling microscopy (STM) to study the formation and evolution of InAs islands on an InP (001) surface. The InAs islands are produced by (i) exchange of P-atoms with As-atoms or by (ii) direct deposition of In and As. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7637300b355e22229c9fd0942c1849b
https://doi.org/10.1557/proc-618-141
https://doi.org/10.1557/proc-618-141
Publikováno v:
MRS Proceedings. 571
We have used in-situ scanning tunneling microscopy (STM) to study the morphological changes to InAs quantum dots (QD's) caused by overgrowth of a GaAs capping layer. We demonstrate that the InAs islands are highly unstable during GaAs overgrowth and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2332797b8a72f71e67a5ad31baf6b098
https://doi.org/10.1557/proc-571-331
https://doi.org/10.1557/proc-571-331
Autor:
Christian P. Morath, Greg Salamo, M. O. Manasreh, J. B. Smathers, H.J. von Bardeleben, H.S. Gingrich, P. Ballet
Publikováno v:
MRS Proceedings. 607
Intersubband transitions in GaAs/AIGaAs multiple quantum wells (MQWs) are studied as a function of 2 MeV electron irradiation doses using the optical absorption technique. The MQW structure was designed with a 5 period Al.4Ga.6As/GaAs superlattice ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d353268d9fa0d2f7687248f303d12cae
https://doi.org/10.1557/proc-607-503
https://doi.org/10.1557/proc-607-503
Publikováno v:
MRS Proceedings. 571
We report an in-situ molecular beam epitaxy – scanning tunneling microscopy study of three dimensional (3D) self organized InAs islands on (AI,Ga)As surfaces. The influence of the presence of Al atoms on the roughness of the starting surface and on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0f3374573c22fd4c0b1edb34e084d0c
https://doi.org/10.1557/proc-571-165
https://doi.org/10.1557/proc-571-165
Publikováno v:
Radiation research. 134(3)
Jejunal crypt cell survival after regimens of one, two, three and five fractions was used to reconstruct composite single-dose survival curves for neutrons of five different energies. There is no obvious shoulder, but there is a gradual divergence fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::ab7c560edc09c46468a22a765770c251
https://pubmed.ncbi.nlm.nih.gov/8316621
https://pubmed.ncbi.nlm.nih.gov/8316621
Publikováno v:
Medical physics. 17(5)
Compositional analyses of samples of soft tissue and lung substitutes used in the construction of anthropomorphic radiotherapy phantoms were performed for products from Alderson Research Laboratories Inc., Kyoto Scientific Specimens Company/Capintec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::95ace7e3b22efdea622f0d7e0c871dd5
https://pubmed.ncbi.nlm.nih.gov/2233565
https://pubmed.ncbi.nlm.nih.gov/2233565