The anharmonic vibration of Li in lithium amide

The anharmonic vibration of Li in lithium amide
复制标题

氨基锂中Li的非简谐振动

DOI:
10.1063/1.3703586
复制
发表时间:
2012
影响因子:
4
通讯作者:
Y. Kojima
Y. Kojima
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
B. Paik;T. Hasegawa;I. Ishii;Akitaka Michigoe;Takashi Suzuki;M. Udagawa;N. Ogita;T. Ichikawa;Y. Kojima

文献摘要

参考文献

被引文献

相似文献

如我们在此对四方相LiNH₂晶体所报道的那样,在没有主客体结构的情况下,Li可能发生大幅度的“咔嗒”型非简谐振动。低温(0.4 - 300 K)比热容和拉曼光谱支持由LiNH₂中Li原子周围势能分布的对称性所决定的位点特异性Li活动的声子模型,该模型产生在一个方向(晶体的X轴或Y轴)上的非简谐Li₃振动(光学振动),而Li₁和Li₂原子则保持静止。我们的发现可能有助于关联LiNH₂的离子电导率、热性能和氢化性能。
A large amplitude rattling-type anharmonic vibration of Li is possible without guest-host type structure, as we report here for tetragonal LiNH2 crystal. The low temperature (0.4–300 K) specific heat capacity and Raman spectroscopy support the phonon model of site-specific Li activities governed by the symmetry of the potential energy distribution around the Li atoms in LiNH2, which yields the anharmonic Li3 vibration (optical) in one direction (either X or Y axis of the crystal), while the Li1 and Li2 atoms remain silent. Our finding may help to correlate ionic conductivity, thermal, and hydrogenation properties of LiNH2.
DOI: 10.1021/ja066016s
发表时间: 2007-02-14
影响因子: 15
作者:
David, William I. F.;Jones, Martin O.;Edwards, Peter P.
通讯作者: Edwards, Peter P.