Charge Stripe Manipulation of Superconducting Pairing Symmetry Transition
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866916513496170496 |
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| author | Chen, Chao Zhong, Peigeng Sui, Xuelei Ma, Runyu Liang, Ying Hu, Shijie Ma, Tianxing Lin, Hai-Qing Huang, Bing |
| author_facet | Chen, Chao Zhong, Peigeng Sui, Xuelei Ma, Runyu Liang, Ying Hu, Shijie Ma, Tianxing Lin, Hai-Qing Huang, Bing |
| contents | Charge stripes have been widely observed in many different types of unconventional superconductors, holding varying periods ($\mathcal{P}$) and intensities. However, a general understanding on the interplay between charge stripes and superconducting properties is still incomplete. Here, using large-scale unbiased numerical simulations on a general inhomogeneous Hubbard model, we discover that the charge-stripe period $\mathcal{P}$, which is variable in different real material systems, could dictate the pairing symmetries -- $d$ wave for $\mathcal{P} \ge 4$, $s$ and $d$ waves for $\mathcal{P} \le 3$. In the latter, tuning hole doping and charge-stripe amplitude can trigger a $d$-$s$ wave transition and magnetic-correlation shift, where the $d$-wave state converts to a pairing-density wave state, competing with the $s$ wave. These interesting phenomena arise from an unusual stripe-induced selection rule of pairing symmetries around on-stripe region and within inter-stripe region, giving rise to a critical point of $\mathcal{P}=3$ for the phase transition. In general, our findings offer new insights into the differences in the superconducting pairing mechanisms across many $\mathcal{P}$-dependent superconducting systems, highlighting the decisive role of charge stripe. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_14254 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Charge Stripe Manipulation of Superconducting Pairing Symmetry Transition Chen, Chao Zhong, Peigeng Sui, Xuelei Ma, Runyu Liang, Ying Hu, Shijie Ma, Tianxing Lin, Hai-Qing Huang, Bing Strongly Correlated Electrons Superconductivity Charge stripes have been widely observed in many different types of unconventional superconductors, holding varying periods ($\mathcal{P}$) and intensities. However, a general understanding on the interplay between charge stripes and superconducting properties is still incomplete. Here, using large-scale unbiased numerical simulations on a general inhomogeneous Hubbard model, we discover that the charge-stripe period $\mathcal{P}$, which is variable in different real material systems, could dictate the pairing symmetries -- $d$ wave for $\mathcal{P} \ge 4$, $s$ and $d$ waves for $\mathcal{P} \le 3$. In the latter, tuning hole doping and charge-stripe amplitude can trigger a $d$-$s$ wave transition and magnetic-correlation shift, where the $d$-wave state converts to a pairing-density wave state, competing with the $s$ wave. These interesting phenomena arise from an unusual stripe-induced selection rule of pairing symmetries around on-stripe region and within inter-stripe region, giving rise to a critical point of $\mathcal{P}=3$ for the phase transition. In general, our findings offer new insights into the differences in the superconducting pairing mechanisms across many $\mathcal{P}$-dependent superconducting systems, highlighting the decisive role of charge stripe. |
| title | Charge Stripe Manipulation of Superconducting Pairing Symmetry Transition |
| topic | Strongly Correlated Electrons Superconductivity |
| url | https://arxiv.org/abs/2304.14254 |