Altermagnetic phases and phase transitions in Lieb- 5 Hubbard model

arXiv:2601.14200 · cond-mat.str-el, cond-mat.mes-hall, cond-mat.mtrl-sci · Submitted 2026-01-20 · Read on arXiv

cond-mat.str-el, cond-mat.mes-hall, cond-mat.mtrl-sci

Submitted: 2026-01-20

Updated: 2026-09-25

Comments: 14 pages; 14 figures; Published version

Journal ref: Physical Review B 114, 175126 (2026)

DOI: 10.1103/xv8w-8sx3

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Hubbard Model — 16× in this paper · explained in 3 episodes
• Altermagnets — 15× in this paper · explained in 1 episode
• Phase Transitions — 8× in this paper · explained in 2 episodes
• Berry Curvature — 6× in this paper · explained in 3 episodes
• Chern Number — 6× in this paper · explained in 4 episodes
• Degeneracy — 5× in this paper · explained in 3 episodes
• Antiferromagnetism — 3× in this paper · explained in 1 episode
• Supplemental Material — 3× in this paper
• Symmetry Breaking — 2× in this paper · explained in 3 episodes
• Topological Order — 2× in this paper · explained in 2 episodes
• Valley Polarization — 2× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Altermagnetic Spin Splitting — 1× in this paper · explained in 1 episode
• Antiferromagnetic Correlation — 1× in this paper · explained in 1 episode
• Consistency — 1× in this paper · explained in 3 episodes
• Department of Space — 1× in this paper
• Many-Body Effects — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Self-consistency — 1× in this paper · explained in 2 episodes

Sources

• Observation of Giant Spin Splitting and d-wave Spin Texture in Room Temperature Altermagnet RuO2
• Spin polarization and diode effect in thermoelectric current through altermagnet-based superconductor heterostructures

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