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Simultaneous polarization analysis of Zeeman splitting in polarized neutron reflectometry using a polarized 3He neutron-spin filter
被引：0
作者：
D. Hussey
S. Fan
B. Neff
C. Bailey
W.M. Snow
D. Rich
A.K. Thompson
T.R. Gentile
S.G.E. te Velthuis
G.P. Felcher
机构：
[1] Indiana University Cyclotron Facility,
[2] 2401 Sampson Ln.,undefined
[3] Bloomington,undefined
[4] IN 47404,undefined
[5] USA,undefined
[6] National Institute of Standards and Technology,undefined
[7] 100 Bureau Dr.,undefined
[8] Gaithersburg,undefined
[9] MD 20899,undefined
[10] USA,undefined
[11] Argonne National Laboratory,undefined
[12] 9700 S. Cass Ave.,undefined
[13] Argonne,undefined
[14] IL 60439,undefined
[15] USA,undefined
来源：
Applied Physics A
|
2002年
/
74卷
关键词：
PACS: 61.12.Ex; 61.12.Ha;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A polarized 3He neutron-spin filter was used to analyze polarized neutrons reflected from a 1000-Å-thick Fe film immersed in a magnetic field. The spin filter analyzed both the specularly reflected component and the off-specular component caused by the phenomenon of Zeeman splitting of surface-scattered neutrons observed by Felcher et al. and investigated in more detail in subsequent experiments. The sample of polarized 3He was polarized by metastability-exchange optical pumping and compressed into a glass cell at the Indiana University Cyclotron Facility. The polarized gas was transported by car in a battery-powered solenoid holding field to the neutron reflectometry instrument POSY I at the Intense Pulsed Neutron Source at Argonne National Laboratory. Using the large solid angle of the polarized 3He spin filter, we were able to simultaneously analyze both components to the scattering and verify (as expected) that the polarization of the specular component was unchanged upon reflection and that the polarization of the off-specular component was reversed. To our knowledge this work represents the second experiment to employ a polarized 3He neutron-spin filter in polarized neutron reflectometry.
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页码：s234 / s236
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