An interplay between the structure and giant magnetoresistance in laser treated Ag/Co multilayers
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
1999
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| _version_ | 1876453842981224448 |
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| author | M. Jergel |
| author_facet | M. Jergel |
| contents | An interplay between the structure and giant magnetoresistance in laser treated Ag/Co multilayers M. Jergel S. Luby A. Anopchenko E. Majková M. Spasova V. Holý M. Brunel A. Luches M. Martino Física, Astronomía y Matemáticas An interplay between the structure and giant magnetoresistance (GMR) evolution in Ag/Co multilayers exposed to excimer XeCl laser pulses with the fluences of (0.1-0.25) Jcm-2 for (1-200) times is studied. Two samples with different layer thickness ratios, Ag4Co1 and Ag6Co1, were electron-beam evaporated on Si(100) substrate. X-ray diffraction revealedpolycrystalline face-centered cubic structure of the Ag layers which is strongly textured in Ag4Co1 multilayer while in other sample the layers are not structurally coherent. A strong texture in Ag4Co1 stabilizes the multilayer structure in the irradiation regime without melting and the GMR varies non-systematically in a rather narrow interval around the original value. Contrarily, the grain boundary diffusion of Ag into Co layers occurs due to laser treatment in Ag6Co1 leading to the formation of a discontinuous multilayer which enhances the GMR ratio more than twice. When the Ag melting threshold is reached, rapid solidification produces a granular-like structure irrespective of the structural character of the original multilayer and the GMR value changes unpredictably in a broad interval. The conclusions are supported by the hard X-ray reflectivity and diffuse scattering measurements as well as by transmission electron microscopy observations. 1999 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94211324006 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Vol.8 |
| format | Artículo científico |
| id | redalyc_94211324006 |
| institution | Redalyc |
| language | en |
| publishDate | 1999 |
| publisher | Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. |
| spellingShingle | An interplay between the structure and giant magnetoresistance in laser treated Ag/Co multilayers M. Jergel Física, Astronomía y Matemáticas An interplay between the structure and giant magnetoresistance in laser treated Ag/Co multilayers M. Jergel S. Luby A. Anopchenko E. Majková M. Spasova V. Holý M. Brunel A. Luches M. Martino Física, Astronomía y Matemáticas An interplay between the structure and giant magnetoresistance (GMR) evolution in Ag/Co multilayers exposed to excimer XeCl laser pulses with the fluences of (0.1-0.25) Jcm-2 for (1-200) times is studied. Two samples with different layer thickness ratios, Ag4Co1 and Ag6Co1, were electron-beam evaporated on Si(100) substrate. X-ray diffraction revealedpolycrystalline face-centered cubic structure of the Ag layers which is strongly textured in Ag4Co1 multilayer while in other sample the layers are not structurally coherent. A strong texture in Ag4Co1 stabilizes the multilayer structure in the irradiation regime without melting and the GMR varies non-systematically in a rather narrow interval around the original value. Contrarily, the grain boundary diffusion of Ag into Co layers occurs due to laser treatment in Ag6Co1 leading to the formation of a discontinuous multilayer which enhances the GMR ratio more than twice. When the Ag melting threshold is reached, rapid solidification produces a granular-like structure irrespective of the structural character of the original multilayer and the GMR value changes unpredictably in a broad interval. The conclusions are supported by the hard X-ray reflectivity and diffuse scattering measurements as well as by transmission electron microscopy observations. 1999 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94211324006 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Vol.8 |
| title | An interplay between the structure and giant magnetoresistance in laser treated Ag/Co multilayers |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=94211324006 |