论文标题
CAMN $ _ {2} $ al $ _ {10} $的巡回磁性的情况
The Case of Itinerant Magnetism in CaMn$_{2}$Al$_{10}$: Self-Consistent Renormalisation (SCR) Theory Study
论文作者
论文摘要
我们已经为系统CAMN $ _ {2} $ al $ _ {10} $应用的旋转波动的强大自洽的翻新理论，并被推测为巡回磁铁。我们已经计算了反静态（顺磁性）敏感性，并将其与实验数据进行了比较（Phys。V.B 92，020413，2015）。协议非常好。我们已经计算了各种温度下的自旋波动，还估计了电子相关性的强度，即（$ i = 0.3136 $ eV）在哈伯德的哈密顿量中。基于我们对SCR理论框架内的反静态（顺磁性）敏感性数据的定量解释，我们可以果断地得出CAMN $ _ {2} $ al $ _ {10} $的结论。此外，我们的DFT和DFT+U计算证实了强大的Mn-Al杂交，这是该系统巡回磁性背后的关键。我们估计的相关强度将为进一步研究该系统的巡回磁性提供基础。
We have applied the powerful self-consistent renormalization theory of spin fluctuations for the system CaMn$_{2}$Al$_{10}$ discovered in 2015 and was conjectured to be an itinerant magnet. We have calculated the inverse static (paramagnetic) susceptibility and have compared it with the experimental data (Phys. Rev. B 92, 020413, 2015). The agreement is very good. We have calculated spin fluctuations at various temperatures and have also estimated the strength of the electronic correlation i.e., ($I=0.3136$ eV) in the Hubbard Hamiltonian. Based on our quantitative explanation of the inverse static (paramagnetic) susceptibility data within the framework of SCR theory, we can decisively conclude CaMn$_{2}$Al$_{10}$ exhibits the phenomena of itinerant magnetism. Further, our DFT and DFT+U calculations corroborate the strong Mn-Al hybridization which is the key behind the itinerant magnetism in this system. Our estimated correlations strength will provide a foundation for further studies of itinerant magnetism in this system.
