Výsledky vyhledávání - "J. Le Héricy"

Depth information in Auger electron spectroscopy

Autor: G. Lorang, J. Le Héricy, J.P. Langeron, S. Bouquet, J.-L. Vignes, F. Pellerin

Publikováno v: Surface Science. :957-962

Two different methods giving non destructive depth information in Auger Electron Spectroscopy (AES) are described, (i) The first one is based on the Auger ratio PB (ratio of the Auger peak to the background at the same energy). In the case of a binar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f843466192fab6ef0dee7e04efc4ade
https://doi.org/10.1016/0039-6028(85)90510-2

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Quantitative approach of Auger electron spectrometry

Autor: J. Le Héricy, J.P. Langeron, F. Pons

Publikováno v: Surface Science. 69:565-580

We describe a formalism leading to a quantization of Auger spectrometry without resorting to standards. An element of the matrix is choosen as a reference and the other species have their Auger signals expressed in terms of the Auger signal of that r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0982720dbe0367c3d77e18ed4debc04b
https://doi.org/10.1016/0039-6028(77)90134-0

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Surface composition analysis of Au-Cu alloy by micro-auger electron spectroscopy

Autor: Naganori Ishihara, Katsumi Nishimori, Yuji Asahara, J. Le Héricy, Heizo Tokutaka, N. Makino, J.P. Langeron

Publikováno v: Applied Surface Science. :107-111

The surface compositions of Au-Cu binary alloys are different from the bulk. The surfaces of the Au-Cu specimens covering all the bulk composition ranges are analyzed by a quantitative AES method. For the Au-Cu alloy surface compositions at room temp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f7a5a525e07f9103d0b07b246530528
https://doi.org/10.1016/0169-4332(88)90294-2

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Composition and thickness of the surface segregation region of a binary alloy system determined by a quantitative Auger electron spectroscopy method

Autor: J.P. Langeron, Katsumi Nishimori, Heizo Tokutaka, J. Le Héricy, K. Tanaka, K. Takashima

Publikováno v: Journal of Applied Physics. 52:6109-6115

Let us consider the surface composition of the binary alloy, where the surface composition R1 is considered to be different from the bulk inside composition R2 and also the segregation region thickness is T. In this model it is possible to count the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26364995fe22a157e8f3895b7b87b956
https://doi.org/10.1063/1.328551

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Croissance, par recristallisation secondaire, de gros cristaux exempts de macles dans le cuivre purifié par fusion de zone

Autor: J Le Héricy, F Blainé

Publikováno v: Journal of Crystal Growth. :834-842

Only zone refined copper, rolled 91%, at −196 °C, and annealed at 1050 °C under high vaccum (10−7Corr) yields large twin-free crystals by secondary recrystallization. The textures of the crystals are of the pes: (110) [114] and (751) [12 7 49].

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de6d169ff8bc657794abc2de4bf8a5c9
https://doi.org/10.1016/0022-0248(72)90569-6

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Contribution a l’etude du dosage par radioactivation du sourfe et du phosphore en tres faibles concentrations dans les metaux de tres haute purete (Aluminium, magnesium, cuivre, fer, nickel)

Autor: J. Blouri, N. Deschamps, J. Le Héricy, Ch. Cleyrergue, Ph. Albert

Publikováno v: Journal of Radioanalytical Chemistry. 1:297-311

The chemical separation of sulphur and phosphorus from pure iron and nickel, is described. Sulphur has been determined first by irradiation in fast neutrons, then by irradiation in mixed fast and thermal neutrons. The two methods gave two different r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d4bc66125eedeb0423c74f6a4346abde
https://doi.org/10.1007/bf02513685

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Étude de la recristallisation de l’aluminium de très haute pureté et de son influence sur la conductibilité électrique aux basses températures

Autor: Ph. Albert, O. Dimitrov, J. Le Héricy

Publikováno v: Revue de Métallurgie. 54:931-941

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::260c0d016c076a0beb8b6c8bf36cc33b
https://doi.org/10.1051/metal/195754120931

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The use of peak to background ratio in quantitative Auger analysis

Autor: F. Pellerin, J.P. Langeron, J.-L. Vignes, L. Minel, S. Bouquet, G. Lorang, P. Ailloud, J. Le Héricy

Publikováno v: Solid State Communications. 49:405-407

The Auger signal is defined as being the ratio, in the direct mode, of the height of the Auger peak to the background at the same energy. This Auger signal is shown to be an intrinsic measurement, proportional to the volume fraction of a given elemen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::788dc6c02046e97da451fd05dbd2fc9a
https://doi.org/10.1016/0038-1098(84)90652-5

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An important step in quantitative auger analysis: The use of peak to background ratio

Autor: G. Lorang, J.P. Langeron, P. Ailloud, J. Le Héricy, F. Pellerin, J.-L. Vignes, L. Minel, S. Bouquet

Publikováno v: Surface Science Letters. 138:A99

If the Auger ratio is defined as being the ratio of the Auger peak to the background at the same energy, this Auger ratio can be considered as an intrinsic measurement, characteristic of the sample, and in a very large degree independent of the instr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5647dd2826f65dcc505647a5f8a0fc9d
https://doi.org/10.1016/0167-2584(84)90394-3

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