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对诸如磁涡旋晶格等介观晶体的飞行时间小角中子散射数据的分析。

Analysis of time-of-flight small-angle neutron scattering data on mesoscopic crystals such as magnetic vortex lattices.

作者信息

Campillo Emma, Bartkowiak Maciej, Prokhnenko Oleksandr, Smeibidl Peter, Forgan Edward M, Blackburn Elizabeth

机构信息

Division of Synchrotron Radiation Research, Lund University, SE-22100 Lund, Sweden.

Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany.

出版信息

J Appl Crystallogr. 2022 Oct 1;55(Pt 5):1314-1323. doi: 10.1107/S1600576722008226.

DOI:10.1107/S1600576722008226
PMID:36249498
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9533749/
Abstract

Bragg diffracted intensities and values for crystalline structures with long repeat distances may be obtained by small-angle neutron scattering (SANS) investigations. An account is given of the methods, advantages and disadvantages of obtaining such data by the multichromatic time-of-flight method, compared with the more traditional quasi-monochromatic SANS method. This is illustrated with data obtained from high-magnetic-field measurements on magnetic vortex line lattices in superconductors on the former HFM/EXED instrument at Helmholtz-Zentrum Berlin. The methods have application to other mesoscopic crystalline structures investigated by SANS instruments at pulsed sources.

摘要

对于具有长重复距离的晶体结构，其布拉格衍射强度和数值可通过小角中子散射（SANS）研究获得。文中介绍了用多色飞行时间法获取此类数据的方法、优缺点，并与更传统的准单色SANS方法进行了比较。这通过在柏林亥姆霍兹中心的前HFM/EXED仪器上对超导体中磁涡旋线晶格进行高磁场测量所获得的数据加以说明。这些方法适用于由脉冲源处的SANS仪器研究的其他介观晶体结构。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/33834f542033/j-55-01314-fig12.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/7f8ed290222d/j-55-01314-fig11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/33834f542033/j-55-01314-fig12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/5b0900a6161d/j-55-01314-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/49ff894e9946/j-55-01314-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/ec4d8eb62939/j-55-01314-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/9969e90db4df/j-55-01314-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/2db6e737c8ca/j-55-01314-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/aa1be1b470c9/j-55-01314-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/dcd2f803392e/j-55-01314-fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/42611fdb5586/j-55-01314-fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/01a18bbf9cdc/j-55-01314-fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/77a67abd6c60/j-55-01314-fig10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/7f8ed290222d/j-55-01314-fig11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a73/9533749/33834f542033/j-55-01314-fig12.jpg

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