تقرير
Real-space Loop Current Pattern in Time-reversal-symmetry Breaking Phase in Kagome Metals
| العنوان: | Real-space Loop Current Pattern in Time-reversal-symmetry Breaking Phase in Kagome Metals |
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| المؤلفون: | Shimura, Koki, Tazai, Rina, Yamakawa, Youichi, Onari, Seiichiro, Kontani, Hiroshi |
| المصدر: | J. Phys. Soc. Jpn. 93, 033704 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity |
| الوصف: | The charge loop current (cLC) state has attracted increasing attention in kagome metals. Here, we calculate the spontaneous currents along the nearest sites $i$ and $j$, $J_{i,j}$, induced by the cLC order that is the imaginary and odd-parity hopping integral modulation $\delta t_{i,j}$. We reveal that the magnitude of $J_{i,j}$ strongly depends on the nearest sites $i$ and $j$ in the $2\times2$ cLC state, where $\eta\equiv |\delta t_{i,j}|$ is equivalent for all nearest sites. The obtained $J_{i,j}$ becomes large near the van-Hove singularity (vHS) filling ($n\sim n_{vHS}$) even when $\eta$ is fixed. Interestingly, the obtained $J_{i,j}$ exhibits the logarithmic divergence behavior at low temperatures for $n\sim n_{vHS}$ with a fixed $\eta$, by reflecting the vHS points that are the characteristic of kagome metals. The present study provides useful information for local electronic state measurements, such as the site-selective NMR and STM experiments. Comment: 6 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.7566/JPSJ.93.033704 |
| URL الوصول: | http://arxiv.org/abs/2312.07256 |
| رقم الأكسشن: | edsarx.2312.07256 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.7566/JPSJ.93.033704 |
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