http://www.cnr.it/ontology/cnr/individuo/prodotto/ID74337

Soft-X study of buried interfaces in stratified media (Articolo in rivista)

Type

Articolo in rivista (Classe)
Prodotto della ricerca (Classe)

Label

Soft-X study of buried interfaces in stratified media (Articolo in rivista) (literal)

Anno

2011-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1117/12.888179 (literal)

Alternative label

MAHNE N (1); GIGLIA A. (1); SPONZA L. (1,2); VERNA A. (1); NANNARONE S. (3) (2011)
Soft-X study of buried interfaces in stratified media
in Proceedings of SPIE, the International Society for Optical Engineering; SPIE, Society of Photo-Optical Instrumentation Engineers, Bellingham [WA] (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

MAHNE N (1); GIGLIA A. (1); SPONZA L. (1,2); VERNA A. (1); NANNARONE S. (3) (literal)

Pagina inizio

1 (literal)

Pagina fine

9 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://spiedigitallibrary.org/proceedings/resource/2/psisdg/7995/1/79951S_1?isAuthorized=no (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

7995 (literal)

Rivista

Proceedings of SPIE, the International Society for Optical Engineering (Rivista)

Note

Scopus (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

(1) Istituto Officina dei Materiali - CNR, Trieste (Italy); (2) Università degli Studi di Trieste, Trieste (Italy) now at Laboratoire des Solids Irradiés, École Polytechnique, Palaiseau (France); (3) Università di Modena e Reggio Emilia, Modena (Italy) (literal)

Titolo

Soft-X study of buried interfaces in stratified media (literal)

Abstract

The performance of multilayer optics depends on the quality of the buried interfaces between materials, whose intermixing strongly affects their behavior. We present an experimental method to determine, in a non destructively way, the amount of material intermixing at interfaces of multilayer structures. The reflection mechanism is related to the build up in the multilayer of a standing wave field, whose peaks and the valleys move as a function both of wavelength and of incidence angle. Exploiting this fact it is possible to modulate the electric field inside the multilayer in order to have different parts of the multilayer structure excited at a different extent and in particular the buried interfaces regions. The excitation is directly proportional to the intensity of the electric field and to the concentration of a given element in the sample. The excitation can be detected with different techniques, f.i. electron core level photoemission, fluorescence, luminescence, total electron yield. The flexibility of the experimental apparatus of the BEAR beamline (Elettra Trieste, Italy) allowed us to study some important classes of layered structures in the soft X-ray energy range, using the above mentioned techniques together with the determination of the Bragg conditions through the measurement of the specular reflectivity. We demonstrate the possibility of obtaining quantitative information on the width of the intermixing region, strongly related to the interface roughness, through the comparison with a phenomenological model of the intermixing and a numerical simulation of the standing field inside the multilayer. (literal)

Editore