The ground state and zero‐field splitting of the GdO molecule
The ground state and zero‐field splitting of the GdO molecule
复制标题
GdO分子的基态和零场分裂
DOI：
10.1063/1.441970
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发表时间：
1981
影响因子：
4.4
通讯作者：
W. Weltner
中科院分区：
文献类型：
--
作者：
R. J. V. Zee;R. Ferrante;K. Zeringue;W. Weltner
在4°K氩气基体中获得了GdO的X波段ESR谱，在0 ~ 12 000 g之间有16条细结构谱线，分析证明这些谱线大部分是由偏离主轴的跃迁引起的，并确定了基态为9Σ。为了准确地拟合数据，除了自旋哈密顿量中通常的b20 = D项外，还需要包含一个小的b40项（Sz中的四次项）。在氩矩阵中导出的参数是g∥= 1.990(9),g⊥= 1.986(5)，‖b20‖=‖D‖= 0.2078(3)cm−1，‖b40‖= 0.000 40(5)cm−1。在氖矩阵中也观察到两条最强的谱线。
The X‐band ESR spectrum of GdO was obtained in an argon matrix at 4 °K as a series of 16 fine‐structure lines between 0 and 12 000 G. Analysis proved that most of these lines were due to off‐principal‐axis transitions and established the ground state as 9Σ. An accurate fit to the data required the inclusion of a small b40 term (quartic in Sz) besides the usual b20 = D term in the spin Hamiltonian. The derived parameters in an argon matrix are g∥ = 1.990(9), g⊥ = 1.986(5), ‖ b20 ‖ = ‖ D ‖ = 0.2078(3) cm−1, and ‖ b40 ‖ = 0.000 40(5) cm−1. The two strongest lines were also observed in a neon matrix.