Crystal-field excitations in CeB 6 studied by Raman and neutron spectroscopy
Crystal-field excitations in CeB 6 studied by Raman and neutron spectroscopy
复制标题
通过拉曼光谱和中子光谱研究 CeB 6 中的晶体场激发
DOI：
10.1103/physrevb.30.4052
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发表时间：
1984
影响因子：
3.7
通讯作者：
Z. Fisk
中科院分区：
文献类型：
--
作者：
E. Zirngiebl;B. Hillebrands;S. Blumenröder;G. Güntherodt;M. Loewenhaupt;J. Carpenter;K. Winzer;Z. Fisk
The ${\ensuremath{\Gamma}}_{8}\ensuremath{-}{\ensuremath{\Gamma}}_{7}$ crystalline-electric-field (CEF) transition of ${\mathrm{CeB}}_{6}$ has been identified near 530 K (46 meV, 372 ${\mathrm{cm}}^{\ensuremath{-}1}$) with use of inelastic neutron and polarized Raman scattering. From the anomalous temperature behavior of the transition energy observed in Raman scattering we deduce a ${\ensuremath{\Gamma}}_{8}$ ground state split by 20 ${\mathrm{cm}}^{\ensuremath{-}1}$ (30 K). The novel CEF level scheme yields a consistent and unified interpretation of so far seemingly unrelated thermal, elastic, and magnetic data.
The ${\ensuremath{\Gamma}}_{8}\ensuremath{-}{\ensuremath{\Gamma}}_{7}$ crystalline-electric-field (CEF) transition of ${\mathrm{CeB}}_{6}$ has been identified near 530 K (46 meV, 372 ${\mathrm{cm}}^{\ensuremath{-}1}$) with use of inelastic neutron and polarized Raman scattering. From the anomalous temperature behavior of the transition energy observed in Raman scattering we deduce a ${\ensuremath{\Gamma}}_{8}$ ground state split by 20 ${\mathrm{cm}}^{\ensuremath{-}1}$ (30 K). The novel CEF level scheme yields a consistent and unified interpretation of so far seemingly unrelated thermal, elastic, and magnetic data.