Revealing spinons by proximity effect
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916644920492032 |
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| author | Tagliente, Antonio Maria Mejuto-Zaera, Carlos Fabrizio, Michele |
| author_facet | Tagliente, Antonio Maria Mejuto-Zaera, Carlos Fabrizio, Michele |
| contents | The ghost-Gutzwiller variational wavefunction within the Gutzwiller approximation is shown to stabilize a genuine paramagnetic Mott insulator in the half-filled single-band Hubbard model. This phase hosts quasiparticles that are crucial to the paramagnetic response without showing up in the single-particle spectrum, and, as such, they can be legitimately regarded as an example of Anderson's spinons. We demonstrate that these spinons at the interface with a metal reacquire charge by proximity effect and thus reemerge in the spectrum as a heavy-fermion band. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_12748 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Revealing spinons by proximity effect Tagliente, Antonio Maria Mejuto-Zaera, Carlos Fabrizio, Michele Strongly Correlated Electrons The ghost-Gutzwiller variational wavefunction within the Gutzwiller approximation is shown to stabilize a genuine paramagnetic Mott insulator in the half-filled single-band Hubbard model. This phase hosts quasiparticles that are crucial to the paramagnetic response without showing up in the single-particle spectrum, and, as such, they can be legitimately regarded as an example of Anderson's spinons. We demonstrate that these spinons at the interface with a metal reacquire charge by proximity effect and thus reemerge in the spectrum as a heavy-fermion band. |
| title | Revealing spinons by proximity effect |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2412.12748 |