A polarised SUSANS facility to study magnetic systems

Pramana

Wolfgang Treimer²  Veer Chand Rakhecha¹  Apoorva G Wagh1¹  Markus Strobl² 

[1] Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India$$;Berlin Neutron Scattering Center, Hahn-Meitner-Institut, Glienicker Strasse 100, 14109 Berlin, Germany$$

关键词: Small-angle neutron scattering;    polarised neutrons;    magnetic agglomerates.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Using a right-angled magnetic air prism, we have achieved a separation of ∼ 10 arcsec between ∼ 2 arcsec wide up- and down-spin peaks of 5.4 Å neutrons. The polarised neutron option has thus been introduced into the SUSANS instrument. Strongly spin-dependent SUSANS spectra have been observed over ±1.3 × 10−4 Å -1 range for several magnetic alloy samples. Spatial pair-distribution functions for the up- and down-spins as well as the nuclear and magnetic scattering length density distributions in the micrometer domain, have been deduced from these spectra.

【 授权许可】

Unknown