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Challenges in neutron spin echo spectroscopy

机译:中子自旋回波光谱学的挑战

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With the new brilliant neutron sources and the developments of novel optical elements, neutron spin echo (NSE) spectroscopy evolves to tackle new problems and scientific fields. The new developments pave the way to complex experimental set-ups such as the intensity modulated variant of NSE (IMNSE), a powerful technique which was introduced some 20 years ago but found limited use up to now. With the new compact supermirror or He-3 polarizers IMNSE becomes attractive for a broad range of applications in magnetism, soft matter and biology. A novel development along this line is the polarimetric NSE technique, which combines IMNSE and the zero-field polarimeter Cryopad to access components of the scattered polarization that are transverse to the incoming polarization. Polarimetric NSE is the method of choice for studying chiral fluctuations, as illustrated by new results on the reference helimagnet MnSi.
机译:随着新型中子源的发展和新型光学元件的发展,中子自旋回波(NSE)光谱学不断发展,以解决新问题和科学领域。新的进展为复杂的实验装置铺平了道路,例如NSE的强度调制变体(IMNSE),这项功能强大的技术大约在20年前被提出,但到现在为止用途有限。借助新型紧凑型超镜或He-3偏振片,IMNSE吸引了磁性,软物质和生物学领域的广泛应用。极化NSE技术是这方面的一项新进展,它结合了IMNSE和零场极化仪Cryopad来访问与入射偏振垂直的散射偏振分量。极化NSE是研究手性波动的一种选择方法,如参考电磁铁MnSi的新结果所示。

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