| Autor: |
Lauter, Valeria, Wang, Kang, Mewes, Tim, Glavic, Artur, Toperverg, Boris, Ahmadi, Mahshid, Assaf, Badih, Hu, Bin, Li, Mingda, Liu, Xinyu, Liu, Yaohua, Moodera, Jagadeesh, Rokhinson, Leonid, Singh, Deepak, Sun, Nian |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments; 10/1/2022, Vol. 93 Issue 10, p1-14, 14p |
| Abstrakt: |
M-STAR is a next generation polarized neutron reflectometer with advanced capabilities. A new focusing guide concept is optimized for samples with dimensions down to a millimeter range. A proposed hybrid pulse-skipping chopper will enable experiments at constant geometry at one incident angle in a broad range of wavevector transfer Q up to 0.3 A−1 for specular, off-specular, and GISANS measurements. M-STAR will empower nanoscience and spintronics studies routinely on small samples (∼2 × 2 mm2) and of atomic-scale thickness using versatile experimental conditions of magnetic and/or electric fields, light, and temperature applied in situ to novel complex device-like nanosystems with multiple buried interfaces. M-STAR will enable improved grazing incidence diffraction measurements, as a surface-sensitive depth-resolved probe of, e.g., the out-of-plane component of atomic magnetic moments in ferromagnetic, antiferromagnetic, and more complex structures as well as in-plane atomic-scale structures inaccessible with contemporary diffractometry and reflectometry. New horizons will be opened by the development of an option to probe near-surface dynamics with inelastic grazing incidence scattering in the time-of-flight mode. These novel options in combination with ideally matched parameters of the second target station will place M-STAR in the world's leading position for high resolution polarized reflectometry. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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