论文标题
通过阻抗和锁定检测技术探测的LA2NIMNO6中的顺磁共振
Paramagnetic resonance in La2NiMnO6 probed by impedance and lock-in detection techniques
论文作者
论文摘要
我们使用两种无空腔的方法，在室温下，在室温下，在室温下，在室温下，在室温下，在室温下的双钙钛矿La2nimno6中检测顺磁共振的检测，使用两种无腔方法。我们使用一种间接阻抗方法，该方法利用射频阻抗分析仪和折叠铜带线圈的频率范围f = 1至2.2 GHz。在这种方法中，当施加的直流磁场被扫除时，条线圈的高频电阻表现出尖锐的峰值，电抗曲线交叉零表现出共振。使用Coclanar波导进行微波激发的基于锁定的宽带设置，用于F = 2至5 GHz，从这两种技术中获得的共振场（HR）随频率线性增长，并且相当于较大的光谱G-Factor，等于2.1284，这支持了Ni2+ couple-Orbit coupling coupling coupling。进行线形分析和分析拟合以根据其初始敏感性和阻尼参数来表征材料。
We report the detection of paramagnetic resonance in the double perovskite La2NiMnO6 at room temperature for microwave magnetic fields with frequencies, f = 1 GHz to 5 GHz, using two cavity-less methods. We use an indirect impedance method which makes use of a radio frequency impedance analyzer and a folded copper strip coil for the frequency range f = 1 to 2.2 GHz. In this method, when an applied dc magnetic field is swept, high-frequency resistance of the strip coil exhibits a sharp peak and the reactance curve crosses zero exhibiting resonance. A lock-in based broadband setup using a coplanar waveguide for microwave excitation was used for f = 2 to 5 GHz The resonance fields (Hr) obtained from both the techniques increase linearly with frequency and a large spectroscopic g-factor, equal to 2.1284, which supports the presence of Ni2+ cation with strong spin-orbit coupling. Line shape analysis and analytical fitting were performed to characterize the material in terms of its initial susceptibility and damping parameters.
