Investigations of the spin-Hamiltonian parameters and defect structures for Gd ions in YMO<sub>4</sub> (M=V, P, As) crystals期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

按检索

Investigations of the spin-Hamiltonian parameters and defect structures for Gd ions in YMO₄ (M=V, P, As) crystals

Authors:	Wei-Qing Yang Yuan LinWen Huang Hui-Zhong Zeng

Institution:	^a Department of Optics and Electronics, Chengdu University of Information and Technology, Chengdu 610225, China ^b State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronics Science and Technology of China, Chengdu, China

Abstract:	A 56×56 energy matrix containing the ground multiplet ⁸S_7/2 and the excited multiplets ⁶L_7/2 (where L=P, D, F, G, H, I) for 4f⁷ ion Gd³⁺ at a tetragonal crystal field and under an external magnetic field is constructed. By diagonalizing the energy matrix, the spin-Hamiltonian parameters (g factors g_‖, g_⊥ and zero-field splittings b₂⁰, b₄⁰, b₄⁴, b₆⁰, b₆⁴) for Gd³⁺ ion at the tetragonal Y³⁺ site of YMO₄ (M=V, P, As) crystals are calculated. The calculated results are in reasonable agreement with the experimental values. The defect structures of Gd³⁺ centers in YMO₄ crystals are estimated from the calculation. The results are discussed.

Keywords:	Spin-Hamiltonian parameters Crystal- and ligand-field theory Defect structures Gd³⁺ YMO₄ (M=V P As)
本文献已被 ScienceDirect 等数据库收录！