Abstract
The neutron reflectometer MARIA with polarisation analysis, which is operated by JCNS, Forschungszentrum Jülich, was designed for the investigation of thin magnetic layered structures down to the monolayer scale and lateral structures.
Highlights
IntroductionThe re ection of polarised neutrons allows to determine individually the density and the modulus and the direction of the magnetisation vector of buried layers
The re ection of polarised neutrons allows to determine individually the density and the modulus and the direction of the magnetisation vector of buried layers.MARIA is optimised for layer thicknesses between 3 – 300 Å and lateral structure sizes from nm to μm sizes
The neutron re ectometer MARIA with polarisation analysis, which is operated by Jülich Centre for Neutron Science (JCNS), Forschungszentrum Jülich, was designed for the investigation of thin magnetic layered structures down to the monolayer scale and lateral structures
Summary
The re ection of polarised neutrons allows to determine individually the density and the modulus and the direction of the magnetisation vector of buried layers. Beside the above described re ectometer mode with good resolution in the horizontal scattering plane, MARIA can be used in the GISANS mode with additional resolution in the vertical direction. The latter mode allows for measuring lateral structures down to the nm scale. All parts of MARIA are controlled by a computer system according to the “Jülich-Munich” standard based on a Linux workstation This allows a exible remote control with automatic scan programs, including the control of sample environment as cryostat and electromagnet
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