Report
Incommensurate antiferromagnetism in UTe2 under pressure
| العنوان: | Incommensurate antiferromagnetism in UTe2 under pressure |
|---|---|
| المؤلفون: | 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. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity |
| الوصف: | 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. Comment: Article: 17 pages, 4 figures, 64 references Supplementary Information: 6 pages, 6 figures, 7 references |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2311.05455 |
| رقم الانضمام: | edsarx.2311.05455 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |