Hagymási, Imre (2025) Magnetic phases of the periodic Anderson model in two dimensions. PHYSICAL REVIEW B, 112 (4). No. 045118. ISSN 2469-9950
|
Text
2501.07541v2.pdf - Draft Version Download (727kB) | Preview |
Abstract
We investigate the ground-state properties of the periodic Anderson model on the square lattice across various band fillings. Employing the infinite projected entangled-pair states (iPEPS) technique, we can determine the magnetic ground states accurately and compare them to mean-field predictions to highlight the effects of quantum fluctuations. At half-filling, we analyze the transition between the antiferromagnetic and paramagnetic (Kondo singlet) phases as a function of hybridization and f-level energy, finding excellent agreement with existing quantum Monte Carlo studies in the case of hybridization. For n = 1.5 electrons per site, we identify a novel correlated antiferromagnetic diagonal stripe phase as the ground state, which competes with its ferromagnetic partner state.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science / természettudomány > QC Physics / fizika > QC06 Physics of condensed matter / szilárdtestfizika |
| Depositing User: | Dr Imre Hagymasi |
| Date Deposited: | 23 Sep 2025 12:32 |
| Last Modified: | 24 Sep 2025 10:32 |
| URI: | https://real.mtak.hu/id/eprint/224961 |
Actions (login required)
 |
Edit Item |
