5 papers
Floquet Engineering Magnetism and Superconductivity in the Square-Lattice Hubbard Model
Jan-Niklas Herre, Takuya Okugawa, Ammon Fischer +2
We study the interplay of magnetic order and superconductivity in the square-lattice Hubbard model under periodic driving with circularly polarized light. Formulating diagrammatic…
Weakly spin-dependent band structures of antiferromagnetic perovskite LaMO (M = Cr, Mn, Fe)
Takuya Okugawa, Kaoru Ohno, Yusuke Noda +1
We investigate spin-dependent electronic states of antiferromagnetic (AFM) lanthanum chromite (LaCrO), lanthanum manganite (LaMnO), and lanthanum ferrite (LaFeO) using…
Dynamical instability in a Floquet-Driven Dissipative System
Takuya Okugawa, Jens Paaske, Martin Eckstein +3
We analyse the magnon spectrum and distribution function of the antiferromagnetic phase of the Floquet-driven Hubbard model. Above a critical drive strength, we find a dynamical in…
Cavity-altered superconductivity
Itai Keren, Tatiana A. Webb, Shuai Zhang +30
Is it feasible to alter the ground state properties of a material by engineering its electromagnetic environment? Inspired by theoretical predictions, experimental realizations of…
Imaging van Hove Singularity Heterogeneity in Overdoped Graphene
Raymond Blackwell, Zengyi Du, Takuya Okugawa +7
Tuning the chemical potential of a solid to the vicinity of a van Hove singularity (vHS) is a well-established route to discovering emergent quantum phases. In monolayer graphene,…