Abstract

Gadolinium stearate is synthesized in the form of a micropowder. Its composition is determined by elemental and energy dispersive X-ray analyses: [Gd(C₁₇H₃₅COO)₃]·(H₂O)_2.42. The splitting parameters in the zero field (D and E) are determined for the EPR spectrum of the gadolinium stearate powder synthesized at 77 K. The magnetic susceptibility is calculated from the integral intensities of the EPR spectra of the gadolinium stearate powder recorded in a range of 77–293 K. The Curie temperature (θ = 0.16 K) and Weiss constant (С = 7.53 cm³ K mol^–1) are determined. The effective magnetic moment is calculated (μ_eff = 7.8 ± 0.14 μ_В), which is constant in the whole temperature range studied for the synthesized gadolinium stearate powder.

中文翻译：

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EPR光谱法研究硬脂酸Ga的性质

摘要

硬脂酸以微粉的形式合成。其组成通过元素和能量色散X射线分析确定：[Gd（C ₁₇ H ₃₅ COO）₃ ]·（H ₂ O）_2.42。确定在77 K时合成的硬脂酸ado粉末的EPR谱在零场（D和E）中的分裂参数。磁化率是根据在一定范围内记录的硬脂酸powder粉末EPR谱的积分强度计算得出的77-293K。居里温度（θ= 0.16 K）和Weiss常数（С = 7.53 cm ³ K mol ^–1）确定。计算出有效磁矩（_μeff = 7.8± _0.14μL），在合成的硬脂酸powder粉末研究的整个温度范围内，该常数是恒定的。