论文标题
通过最小二乘拟合到由随机量子量子的模型，从接近零磁场磁路线从接近零磁场的磁磁光谱中提取各向同性电子核超精细偶联常数从接近零磁场的磁磁性光谱中提取。
Extraction of Isotropic Electron-Nuclear Hyperfine Coupling Constants of Paramagnetic Point Defects from Near-Zero Field Magnetoresistance Spectra via Least Squares Fitting to Models Developed from the Stochastic Quantum Liouville Equation
论文作者
论文摘要
我们报告了一种方法，我们可以系统地提取光谱信息，例如来自近零磁场磁磁性光谱的各向同性电子核超精细偶联常数。该方法利用了从随机量子liouville方程开发的模型的最小二乘拟合。我们将拟合算法应用于两个不同的材料系统：SI/SIO2 MOSFET和A-SI：H MIS电容器。我们拟合的结果和超细参数与系统中存在的缺陷的现有知识是合理的。我们的工作表明，通过随机量子liouville方程开发的模型，NZFMR响应和NZFMR光谱的拟合可能是一种相对简单但功能强大的基于自旋的技术的补充，用于探索半导体设备和绝缘体中点缺陷的化学和结构性质。
We report on a method by which we can systematically extract spectroscopic information such as isotropic electron-nuclear hyperfine coupling constants from near-zero field magnetoresistance spectra. The method utilizes a least squares fitting of models developed from the stochastic quantum Liouville equation. We applied our fitting algorithm to two distinct material systems: Si/SiO2 MOSFETs, and a-Si:H MIS capacitors. Our fitted results and hyperfine parameters are in reasonable agreement with existing knowledge of the defects present in the systems. Our work indicates that the NZFMR response and fitting of the NZFMR spectrum via models developed from the stochastic quantum Liouville equation could be a relatively simple yet powerful addition to the family of spin-based techniques used to explore the chemical and structural nature of point defects in semiconductor devices and insulators.
