تقرير
Development of spin fluctuations under the presence of $d$-wave bond order in cuprate superconductors
| العنوان: | Development of spin fluctuations under the presence of $d$-wave bond order in cuprate superconductors |
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| المؤلفون: | Ando, Satoshi, Yamakawa, Youichi, Onari, Seiichiro, Kontani, Hiroshi |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity |
| الوصف: | In cuprate superconductors, superconductivity appears below the CDW transition temperature $T_{CDW}$. However, many-body electronic states under the CDW order are still far from understood. Here, we study the development of the spin fluctuations under the presence of $d$-wave bond order (BO) with wavevector $q=(\pi/2,0),(0,\pi/2)$, which is derived from the paramagnon interference mechanism in recent theoretical studies. Based on the $4 \times 1$ and $4 \times 4$ cluster Hubbard models, the feedback effects between spin susceptibility and self-energy are calculated self-consistently by using the fluctuation-exchange (FLEX) approximation. It is found that the $d$-wave BO leads to a sizable suppression of the nuclear magnetic relaxation rate $1/T_1$. In contrast, the reduction in $T_c$ is small, since the static susceptibility $\chi^s(Q_s)$ is affected by the BO just slightly. It is verified that the $d$-wave BO scenario is consistent with the experimental electronic properties below $T_{CDW}$. Comment: 8 pages,7 figures, to be published in J. Phys. Soc. Jpn |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.7566/JPSJ.90.063704 |
| URL الوصول: | http://arxiv.org/abs/2104.14853 |
| رقم الأكسشن: | edsarx.2104.14853 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.7566/JPSJ.90.063704 |
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