A neutron polarization analysis study of Ce2Fe17 in its paramagnetic phase |
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Authors: | Sk Mohammad Yusuf L Madhav Rao K B Bhat |
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Institution: | (1) Solid State Physics Division, Bhabha Atomic Research Centre, 400 085 Bombay, India;(2) Chemistry Division, Bhabha Atomic Research Centre, 400 085 Bombay, India |
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Abstract: | Spin-flip (paramagnetic) scattering and neutron depolarization studies were performed on Ce2Fe17 in its paramagnetic phase on the Dhruva neutron polarization analysis spectrometer. The absence of normalQ dependence of the scattered spin flip intensity shows that Ce2Fe17 is not a normal paramagnetic and there exist superparamagnetic clusters of sufficiently large dimensions (~100Å). The observed neutron depolarization gives an indication of the dynamics of these Ce2Fe17 superparamagnetic clusters. |
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Keywords: | Ce2Fe17 superparamagnetic clusters neutron polarization analysis spin-flip |
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