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435 papers · 1 filter
Magnetic excitation spectrum and hierarchy of magnetic interactions in ErFeO3
Dnyaneshwar R. Bhosale, Piotr Fabrykiewicz, Devashibhai Adroja +3
We report a comprehensive investigation of the excitation spectrum of ErFeO orthoferrite by means of time-of-flight neutron spectroscopy. The spectrum consists of two distinct…
Many-body correlations in Floquet steady-states: Frequency-resolved renormalization group of the driven Anderson impurity
Jan-Niklas Herre, Christoph Karrasch, Dante M. Kennes
We introduce a functional renormalization group framework formulated directly in the Floquet steady-state that systematically incorporates frequency-dependent interaction effects.…
Quantum control of Hubbard excitons
D. R. Baykusheva, D. P. Carmichael, C. S. Weber +12
Quantum control of the many-body wavefunction is a central challenge in quantum materials research, as it could yield a precise control knob to manipulate emergent phenomena. Floqu…
Surface Functional Renormalization Group for Layered Quantum Materials
Lennart Klebl, Dante M. Kennes
We present an extension to the two-dimensional functional renormalization group to efficiently treat interactions on the surface or at interfaces of three-dimensional systems. As a…
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…
Magnetic and phononic dynamics in the two-ladder quantum magnet (C5H9NH3)2CuBr4
J. Philippe, F. Elson, T. Arh +20
In quantum magnetic materials it is common to observe both static and dynamic lattice effects on the magnetic excitation spectrum. Less common is to find that the magnetic correlat…