From the 2 of 5.7k papers with an AI index.
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25 papers · 2 filters
Field-Induced Magnon Decay, Magnon Shadows, and Roton-like Excitations in the Honeycomb Antiferromagnet YbBr
J. A. Hernández, A. A. Eberharter, M. Schuler +9
Although the search for quantum many-body phenomena in magnetic materials has a strong focus on highly frustrated systems, even unfrustrated quantum magnets show a multitude of unc…
Deconfined classical criticality in the anisotropic quantum spin- XY model on the square lattice
Christopher Mudry, Ömer M. Aksoy, Claudio Chamon +1
The anisotropic quantum spin-1/2 XY model on a linear chain was solved by Lieb, Schultz, and Mattis in 1961 and shown to display a continuous quantum phase transition at the O(2) s…
Broken symmetry solutions in one-dimensional lattice models via many-body perturbation theory
Matteo Quinzi, Tommaso Chiarotti, Marco Gibertini +1
In this work we study self-consistent solutions in one-dimensional lattice models obtained via many-body perturbation theory. The Dyson equation is solved in a fully self-consisten…
Coexistence of insulator-like paramagnon and metallic spin-orbit exciton modes in SrIrO
Eugenio Paris, Wenliang Zhang, Yi Tseng +13
We probe the spectrum of elementary excitations in SrIrO by using heterostructured [(SrIrO)/(SrTiO)] samples to approach the bulk limit. Our resonant inelastic…
Bullet pressure-cell design for neutron scattering experiments with horizontal magnetic fields and dilution temperatures
Ellen Fogh, Gaétan Giriat, Richard Gaal +10
The simultaneous application of high magnetic fields and high pressures for controlling magnetic ground states is important for testing our understanding of many-body quantum theor…
Singularity with and without disorder at AKLT points
Loïc Herviou, Anthony Rey, Frédéric Mila
The Affleck-Kennedy-Lieb-Tasaki (AKLT) point of the bilinear-biquadratic spin-1 chain is a cornerstone example of a disorder point where short-range correlations become incommensur…