Neutron Resonance Spin Echo - Triple Axis Spectrometry (NRSE-TAS)
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- 作者：T. Keller A1 ; B. Keimer A1 ; K. Habicht A2 ; R. Golub A2 ; F. Mezei A2
- 关键词：PACS ; 61.12.-q ; 61.25.Hq ; 74.25.Qt ; 78.70.Nx
- 刊名：Lecture Notes in Physics
- 出版年：2002
- 出版时间：2002
- 年：2002
- 卷：601
- 期：1
- 页码：pp.74-86
- 全文大小：639 KB
文摘
Based on the method of spin echo phonon focusing neutron spectrometers combining neutron spin echo (NSE) and three axis spectroscopy (TAS) techniques allow for the first time to measure linewidths of dispersing excitations, including both phonons and magnons, over the entire Brillouin zone. The basic principles of spin echo phonon focusing and its realization will be presented. As an example the results for the measurement of the phonon linewidth of solid lead obtained by NRSE-TAS are discussed.