Sc(0,1,2,3 mol%): Ce: Fe: LiNbO3晶体缺陷结构和光学性质的研究

IF 1.6 4区物理与天体物理 Q3 PHYSICS, APPLIED

Journal of Superconductivity and Novel Magnetism Pub Date : 2025-01-15 DOI:10.1007/s10948-024-06862-y

Li Dai, Xianbiao Li, Zhipeng Huang, Shuo Shi

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引用次数: 0

摘要

Sc(0,1,2,3 mol%): Ce: Fe: LiNbO3晶体采用常规的Czochralski法生长。x射线衍射用来测定晶格常数和分析晶体的内部结构。晶格尺寸先增大后减小，掺杂元素没有改变晶体结构。用ICP-AES法测定了晶体中Sc3+、Ce4+和Fe3+离子的浓度。随着熔体中Sc3+浓度的增加，Sc3+的有效偏析系数减小，Ce4+和Fe3+的有效偏析系数增大。双折射梯度法测得的ScCeFe-3样品的双折射梯度为3.3 × 10−5∆R/cm−1，光学均匀性最佳。

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Investigation of Defect Structure and Optical Properties of Sc(0,1,2,3 mol%): Ce: Fe: LiNbO3 Crystals

Sc(0,1,2,3 mol%): Ce: Fe: LiNbO₃ crystals were grown by conventional Czochralski method. The X-ray diffraction is used to determine lattice constants and analyze the internal structure of crystals. The lattice size was found to increase first and then decrease, and the doping elements do not alter the crystal structure. The concentrations of Sc³⁺, Ce⁴⁺, and Fe³⁺ ions in the crystals were measured using ICP-AES. With the increase of Sc³⁺ concentration in the melt, the effective segregation coefficient of Sc³⁺ was found to decrease, while the effective segregation coefficient of Ce⁴⁺ and Fe³⁺ increased. The birefringence gradient of the ScCeFe-3 sample measured using the birefringence gradient method was 3.3 × 10⁻⁵ ∆R/cm⁻¹, which was the best optical homogeneity.

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来源期刊

Journal of Superconductivity and Novel Magnetism 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.10%

发文量

342

审稿时长

3.5 months

期刊介绍： The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.