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| Format: | Preprint |
| Publié: |
2026
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| Accès en ligne: | https://arxiv.org/abs/2605.11965 |
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| _version_ | 1866909054811504640 |
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| author | Itoh, Y. |
| author_facet | Itoh, Y. |
| contents | We report on the finite temperature staggered spin susceptibility $χ(Q)$ as a function of the mode-mode coupling constant $y_1$ in the self-consistent renormalization theory of two-dimensional antiferromagnetic spin fluctuations with zero-point quantum fluctuations just at the quantum critical point ($y_0$ = 0). We find that the value $y_1$ = 0.1 is a criterion to classify the effect of the zero-point spin fluctuations on the temperature dependence of $χ(Q)$ into a Curie law for weak $y_1 < $ 0.1 and a Curie-Weiss type or a power law type for strong $y_1 > $ 0.1. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_11965 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Staggered spin susceptibility at a two-dimensional antiferromagnetic quantum critical point Itoh, Y. Strongly Correlated Electrons Superconductivity We report on the finite temperature staggered spin susceptibility $χ(Q)$ as a function of the mode-mode coupling constant $y_1$ in the self-consistent renormalization theory of two-dimensional antiferromagnetic spin fluctuations with zero-point quantum fluctuations just at the quantum critical point ($y_0$ = 0). We find that the value $y_1$ = 0.1 is a criterion to classify the effect of the zero-point spin fluctuations on the temperature dependence of $χ(Q)$ into a Curie law for weak $y_1 < $ 0.1 and a Curie-Weiss type or a power law type for strong $y_1 > $ 0.1. |
| title | Staggered spin susceptibility at a two-dimensional antiferromagnetic quantum critical point |
| topic | Strongly Correlated Electrons Superconductivity |
| url | https://arxiv.org/abs/2605.11965 |