Ferromagnetically ordered metal in the single-band Hubbard model
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2019
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| _version_ | 1866910492159639552 |
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| author | Koga, Akihisa Kamogawa, Yusuke Nasu, Joji |
| author_facet | Koga, Akihisa Kamogawa, Yusuke Nasu, Joji |
| contents | We study a ferromagnetic instability in a single-band Hubbard model on the hypercubic lattice away from half filling. Using dynamical mean-field theory with the continuous-time quantum Monte Carlo simulations based on the segment algorithm, we calculate the magnetic susceptibility in the weak and strong coupling regions systematically. We then find how ferromagnetic fluctuations are enhanced when the interaction strength and density of holes are varied. The efficiency of the double flip updates in the Monte Carlo simulations is also addressed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1912_05053 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Ferromagnetically ordered metal in the single-band Hubbard model Koga, Akihisa Kamogawa, Yusuke Nasu, Joji Strongly Correlated Electrons We study a ferromagnetic instability in a single-band Hubbard model on the hypercubic lattice away from half filling. Using dynamical mean-field theory with the continuous-time quantum Monte Carlo simulations based on the segment algorithm, we calculate the magnetic susceptibility in the weak and strong coupling regions systematically. We then find how ferromagnetic fluctuations are enhanced when the interaction strength and density of holes are varied. The efficiency of the double flip updates in the Monte Carlo simulations is also addressed. |
| title | Ferromagnetically ordered metal in the single-band Hubbard model |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/1912.05053 |