Electron paramagnetic resonance of Fe~(3+) in gallium borate: Superposition model analysis

Kira Seleznyova; Mark Strugatsky; Sergey Yagupov; Natalia Postivey; Alla Artemenko; Janis Kliava

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Electron paramagnetic resonance of Fe~(3+) in gallium borate: Superposition model analysis

机译：硼酸镓中Fe〜（3+）的电子顺磁共振：叠加模型分析

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A series of high quality Fe_xGa_(1-x)BO_3 single crystals with 0≤x≤1 was prepared and studied by electron magnetic resonance in the temperature range from 4 to 290 K. At low x, only the electron paramagnetic resonance (EPR) of diluted Fe~(3+) ions is present. The EPR spectra for different orientations of the magnetizing field have been computer simulated. With a conventional spin Hamiltonian including the Zeeman and finestructure terms, two different sets of best-fit parameters have been found. This ambiguity has been resolved on the basis of the general spin Hamiltonian with parameters determined from the crystallographic data using the Newman superposition model. A detailed fitting to the experimental EPR spectra assuming statistical distributions of Fe~(3+) ligand coordinates has revealed the existence of a certain degree of local disorder in Fe_xGa_(1-x)BO_3 single crystals.

机译：制备了一系列0≤x≤1的高质量Fe_xGa_（1-x）BO_3单晶，并通过电子磁共振在4至290 K的温度范围内进行了研究。在低x下，仅电子顺磁共振（EPR）存在稀的Fe〜（3+）离子。已经对计算机模拟了磁化场不同方向的EPR谱。使用包含Zeeman和精细结构项的常规自旋哈密顿量，已找到两组不同的最佳拟合参数。这种模糊性已经在一般自旋哈密顿量的基础上得到解决，其参数是使用纽曼叠加模型从晶体学数据确定的参数。假设Fe〜（3+）配体坐标的统计分布，对实验EPR光谱的详细拟合揭示了Fe_xGa_（1-x）BO_3单晶中存在一定程度的局部无序。

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《Physica status solidi, B. Basic research》 |2014年第7期|共8页
作者
Kira Seleznyova; Mark Strugatsky; Sergey Yagupov; Natalia Postivey; Alla Artemenko; Janis Kliava;
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正文语种 eng
中图分类固体物理学;
关键词
Fe~(3+) electron paramagnetic resonance; gallium borate; spin Hamiltonian; superposition model;

机译：Fe〜（3+）电子顺磁共振;硼酸镓;自旋哈密顿量;叠加模型;

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1. Electron paramagnetic resonance of Fe~(3+) in gallium borate: Superposition model analysis [J] . Kira Seleznyova, Mark Strugatsky, Sergey Yagupov, Physica status solidi, B. Basic research . 2014,第7期

机译：硼酸镓中Fe〜（3+）的电子顺磁共振：叠加模型分析
2. Effects of MnO doping on the electronic properties of zinc oxide: 406 GHz electron paramagnetic resonance spectroscopy and Newman superposition model analysis [J] . Berat Yueksel Price, Goekhan Hardal, Muhammed Acikgoez, Journal of Applied Physics . 2015,第17期

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4. Structural and electron paramagnetic resonance of Fe~(3+)Sm~(3+) co-doped BaTiO_3 [C] . K. Madhan, R. Murugaraj DAE Solid State Physics Symposium . 2020

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5. Electron paramagnetic resonance spectroscopy and Hall effect studies of the effects of low energy electron irradiation on gallium nitride. [D] . Greene, Kevin DeWayne. 2003

机译：电子顺磁共振波谱和低能电子辐照对氮化镓影响的霍尔效应研究。
6. Analysis of saturation transfer electron paramagnetic resonance spectra of a spin-labeled integral membrane protein band 3 in terms of the uniaxial rotational diffusion model. [O] . E J Hustedt, A H Beth 1995

机译：根据单轴旋转扩散模型分析自旋标记的整合膜蛋白（带3）的饱和转移电子顺磁共振光谱。
7. Electron paramagnetic resonance of Fe3+ in gallium borate: Superposition model analysis [O] . Seleznyova, Kira, Strugatsky, Mark, Yagupov, Sergey, 2014

机译：硼酸镓中Fe3 +的电子顺磁共振：叠加模型分析

Electron paramagnetic resonance of Fe~(3+) in gallium borate: Superposition model analysis

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