De Haas-van Alphen effect and a giant temperature peak in heavy fermion SmB$_6$ compound
Fuente:
arXiv
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2023
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866912119710023680 |
|---|---|
| author | Zyuzin, Vladimir A. |
| author_facet | Zyuzin, Vladimir A. |
| contents | In this paper we suggest a possible explanation of the giant temperature peak in the amplitude of the de Haas-van Alphen oscillations observed at very low temperatures in insulating SmB$_6$ system. Our theoretical model consists of two fermions with particle-like dispersion but with different masses, one much heavier than the other, which hybridize with each other to open up a gap at their degeneracy point. As a result of the hybridization a heavy-fermion hybrid appears at the Fermi level. Our results strongly suggest that it is exactly this heavy-fermion hybrid which results in the giant temperature peak. In addition we propose a scenario when this hybrid has edge states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_13565 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | De Haas-van Alphen effect and a giant temperature peak in heavy fermion SmB$_6$ compound Zyuzin, Vladimir A. Strongly Correlated Electrons In this paper we suggest a possible explanation of the giant temperature peak in the amplitude of the de Haas-van Alphen oscillations observed at very low temperatures in insulating SmB$_6$ system. Our theoretical model consists of two fermions with particle-like dispersion but with different masses, one much heavier than the other, which hybridize with each other to open up a gap at their degeneracy point. As a result of the hybridization a heavy-fermion hybrid appears at the Fermi level. Our results strongly suggest that it is exactly this heavy-fermion hybrid which results in the giant temperature peak. In addition we propose a scenario when this hybrid has edge states. |
| title | De Haas-van Alphen effect and a giant temperature peak in heavy fermion SmB$_6$ compound |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2306.13565 |