Multilayers with tailored blurred interfaces

J. Padiyath; J. Stahn; M. Horisberger; P. Boni

doi:10.1063/1.2355364

Multilayers with tailored blurred interfaces

J. Padiyath
, J. Stahn
, M. Horisberger
, P. Boni

Natural Sciences

Paul Scherrer Institut

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Monochromators used in neutron or x-ray experiments often have higher-order contributions, which have to be reduced by filters. Multilayer monochromators produced by dc-magnetron sputtering, with intentionally blurred interfaces, have reduced these higher-order contributions. The approach is to substitute the bilayer structure by several layers with individual thicknesses per period. A Ni/Ti monochromator was prepared where higher-order contributions were reduced below 0.1% of the first-order reflectivity of 93% (measured up to the seventh order). In order to determine the lifetime of such a structure, the interdiffusion of the constituents was measured with thermal annealing (interface diffusion activation energy: 0.16(1) eV).

Original language	English
Article number	113123
Journal	Applied Physics Letters
Volume	89
Issue number	11
DOIs	https://doi.org/10.1063/1.2355364
State	Published - 2006

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10.1063/1.2355364

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@article{dd73153d85364a4fa2677a8b205e7ade,

title = "Multilayers with tailored blurred interfaces",

abstract = "Monochromators used in neutron or x-ray experiments often have higher-order contributions, which have to be reduced by filters. Multilayer monochromators produced by dc-magnetron sputtering, with intentionally blurred interfaces, have reduced these higher-order contributions. The approach is to substitute the bilayer structure by several layers with individual thicknesses per period. A Ni/Ti monochromator was prepared where higher-order contributions were reduced below 0.1\% of the first-order reflectivity of 93\% (measured up to the seventh order). In order to determine the lifetime of such a structure, the interdiffusion of the constituents was measured with thermal annealing (interface diffusion activation energy: 0.16(1) eV).",

author = "J. Padiyath and J. Stahn and M. Horisberger and P. Boni",

note = "Funding Information: The authors thank H. Grimmer (PSI) for his help with the x-ray experiments, E. M{\"u}ller of the ETHZ for the TEM experiments and the discussion of the results, and M. Wolff for the assistance of the experiments on ADAM. Financial support by the Swiss National Science Foundation is gratefully acknowledged (200021-101567) and by MaNEP (NCCR). This work was supported by the European Union within the Sixth Framework Program FP6 under Contract No. 505925. This work was performed at the SINQ, Paul Scherrer Institute, Villigen, Switzerland and the ILL, Grenoble, France.",

year = "2006",

doi = "10.1063/1.2355364",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Multilayers with tailored blurred interfaces

AU - Padiyath, J.

AU - Stahn, J.

AU - Horisberger, M.

AU - Boni, P.

N1 - Funding Information: The authors thank H. Grimmer (PSI) for his help with the x-ray experiments, E. Müller of the ETHZ for the TEM experiments and the discussion of the results, and M. Wolff for the assistance of the experiments on ADAM. Financial support by the Swiss National Science Foundation is gratefully acknowledged (200021-101567) and by MaNEP (NCCR). This work was supported by the European Union within the Sixth Framework Program FP6 under Contract No. 505925. This work was performed at the SINQ, Paul Scherrer Institute, Villigen, Switzerland and the ILL, Grenoble, France.

PY - 2006

Y1 - 2006

N2 - Monochromators used in neutron or x-ray experiments often have higher-order contributions, which have to be reduced by filters. Multilayer monochromators produced by dc-magnetron sputtering, with intentionally blurred interfaces, have reduced these higher-order contributions. The approach is to substitute the bilayer structure by several layers with individual thicknesses per period. A Ni/Ti monochromator was prepared where higher-order contributions were reduced below 0.1% of the first-order reflectivity of 93% (measured up to the seventh order). In order to determine the lifetime of such a structure, the interdiffusion of the constituents was measured with thermal annealing (interface diffusion activation energy: 0.16(1) eV).

AB - Monochromators used in neutron or x-ray experiments often have higher-order contributions, which have to be reduced by filters. Multilayer monochromators produced by dc-magnetron sputtering, with intentionally blurred interfaces, have reduced these higher-order contributions. The approach is to substitute the bilayer structure by several layers with individual thicknesses per period. A Ni/Ti monochromator was prepared where higher-order contributions were reduced below 0.1% of the first-order reflectivity of 93% (measured up to the seventh order). In order to determine the lifetime of such a structure, the interdiffusion of the constituents was measured with thermal annealing (interface diffusion activation energy: 0.16(1) eV).

UR - https://www.scopus.com/pages/publications/33748759839

U2 - 10.1063/1.2355364

DO - 10.1063/1.2355364

M3 - Article

AN - SCOPUS:33748759839

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 11

M1 - 113123

ER -

Multilayers with tailored blurred interfaces

Abstract

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