Incommensurate antiferromagnetism in UTe2 under pressure
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909653202370560 |
|---|---|
| author | Knafo, W. Thebault, T. Manuel, P. Khalyavin, D. D. Orlandi, F. Ressouche, E. Beauvois, K. Lapertot, G. Kaneko, K. Aoki, D. Braithwaite, D. Knebel, G. Raymond, S. |
| author_facet | Knafo, W. Thebault, T. Manuel, P. Khalyavin, D. D. Orlandi, F. Ressouche, E. Beauvois, K. Lapertot, G. Kaneko, K. Aoki, D. Braithwaite, D. Knebel, G. Raymond, S. |
| contents | The discovery of multiple superconducting phases in UTe2 boosted research on correlated-electron physics. This heavy-fermion paramagnet was rapidly identified as a reference compound to study the interplay between magnetism and unconventional superconductivity with multiple degrees of freedom. The proximity to a ferromagnetic quantum phase transition was initially proposed as a driving force to triplet-pairing superconductivity. However, we find here that long-range incommensurate antiferromagnetic order is established under pressure. The propagation vector km = (0.07,0.33,1) of the antiferromagnetic phase is close to a wavevector where antiferromagnetic fluctuations have previously been observed at ambient pressure. These elements support that UTe2 is a nearly-antiferromagnet at ambient pressure. Our work appeals for theories modelling the evolution of the magnetic interactions and electronic properties, driving a correlated paramagnetic regime at ambient pressure to a long-range antiferromagnetic order under pressure. A deeper understanding of itinerant-f-electrons magnetism in UTe2 will be a key for describing its unconventional superconducting phases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_05455 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Incommensurate antiferromagnetism in UTe2 under pressure Knafo, W. Thebault, T. Manuel, P. Khalyavin, D. D. Orlandi, F. Ressouche, E. Beauvois, K. Lapertot, G. Kaneko, K. Aoki, D. Braithwaite, D. Knebel, G. Raymond, S. Strongly Correlated Electrons Superconductivity The discovery of multiple superconducting phases in UTe2 boosted research on correlated-electron physics. This heavy-fermion paramagnet was rapidly identified as a reference compound to study the interplay between magnetism and unconventional superconductivity with multiple degrees of freedom. The proximity to a ferromagnetic quantum phase transition was initially proposed as a driving force to triplet-pairing superconductivity. However, we find here that long-range incommensurate antiferromagnetic order is established under pressure. The propagation vector km = (0.07,0.33,1) of the antiferromagnetic phase is close to a wavevector where antiferromagnetic fluctuations have previously been observed at ambient pressure. These elements support that UTe2 is a nearly-antiferromagnet at ambient pressure. Our work appeals for theories modelling the evolution of the magnetic interactions and electronic properties, driving a correlated paramagnetic regime at ambient pressure to a long-range antiferromagnetic order under pressure. A deeper understanding of itinerant-f-electrons magnetism in UTe2 will be a key for describing its unconventional superconducting phases. |
| title | Incommensurate antiferromagnetism in UTe2 under pressure |
| topic | Strongly Correlated Electrons Superconductivity |
| url | https://arxiv.org/abs/2311.05455 |