Temperature Dependence of the Momentum-Resolved Static Spin Susceptibility in a Mott-Proximate Cuprate Model
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866917060688216064 |
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| author | Tanaka, Keishichiro |
| author_facet | Tanaka, Keishichiro |
| contents | This paper presents the temperature dependence of the static spin susceptibility at $\mathbf{q} = (π, π)$ and $\mathbf{q} = (π, 0)$ in a Mott-proximate cuprate model with an antinodal pseudogap -- a model system for high-temperature superconducting (HTSC) cuprates.
The results show the susceptibility onset temperature tracks the critical temperature ($T_c$) of HTSCs with a comparable scale across the electron filling factor. Also, as the electron filling decreases and the chemical potential approaches the antinodal van Hove region, the susceptibility at $\mathbf{q}=(π,0)$ -- the axial particle-hole response -- grows markedly.
It suggests that the emergence of cuprate superconductivity correlates with a suppression of low-energy antinodal spin response and associated particle-hole excitations, which would otherwise dephase $d$-wave pairing, commonly attributed to spin fluctuations. In this context, the pseudogap partially suppresses antinodal spectral weight near $ω= 0$, thereby reducing the low-$ω$ particle-hole phase space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_16884 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Temperature Dependence of the Momentum-Resolved Static Spin Susceptibility in a Mott-Proximate Cuprate Model Tanaka, Keishichiro Strongly Correlated Electrons Superconductivity This paper presents the temperature dependence of the static spin susceptibility at $\mathbf{q} = (π, π)$ and $\mathbf{q} = (π, 0)$ in a Mott-proximate cuprate model with an antinodal pseudogap -- a model system for high-temperature superconducting (HTSC) cuprates. The results show the susceptibility onset temperature tracks the critical temperature ($T_c$) of HTSCs with a comparable scale across the electron filling factor. Also, as the electron filling decreases and the chemical potential approaches the antinodal van Hove region, the susceptibility at $\mathbf{q}=(π,0)$ -- the axial particle-hole response -- grows markedly. It suggests that the emergence of cuprate superconductivity correlates with a suppression of low-energy antinodal spin response and associated particle-hole excitations, which would otherwise dephase $d$-wave pairing, commonly attributed to spin fluctuations. In this context, the pseudogap partially suppresses antinodal spectral weight near $ω= 0$, thereby reducing the low-$ω$ particle-hole phase space. |
| title | Temperature Dependence of the Momentum-Resolved Static Spin Susceptibility in a Mott-Proximate Cuprate Model |
| topic | Strongly Correlated Electrons Superconductivity |
| url | https://arxiv.org/abs/2510.16884 |