Laser Spectroscopy and Hole Burning of Europium Laurate and Europium-Doped Lanthanum Laurate
Laser Spectroscopy and Hole Burning of Europium Laurate and Europium-Doped Lanthanum Laurate
复制标题
月桂酸铕和掺铕月桂酸镧的激光光谱和烧孔
DOI：
10.1016/s0022-2313(99)00026-5
复制
发表时间：
1999
影响因子：
3.6
通讯作者：
J.P.D. Martin
中科院分区：
文献类型：
--
作者：
R. Corkery;J.P.D. Martin
对月桂酸铕和掺铕月桂酸镧样品进行了激光光谱和烧孔测量。镧系元素月桂酸盐皂是长链 (C12) 饱和脂肪酸的镧系元素盐，其中出现二维烃链层，根据其热历史形成层状晶体或近晶液晶。在这项研究中，通过不同的冷却速率制备了亚稳态液晶固体样品，这导致了铕离子局部无序的变化。在缓慢冷却的月桂酸铕中发现了两个对称的不同铕位点。
Laser spectroscopy and hole-burning measurements have been made on samples of europium laurate and europium-doped lanthanum laurate. The lanthanide laurate soaps are lanthanide salts of long chain (C12), saturated fatty acids in which 2D layers of hydrocarbon chains arise, forming either lamellar crystals or smetic liquid crystals depending on their thermal history. In this study, solid samples of metastable liquid crystals were prepared by different cooling rates which resulted in a variation of the local disorder about the europium ions. Two symmetrically distinct europium sites have been identified within slowly cooled europium laurate.