Photo-excitation of AFI LCMO produces a long-lived hidden phase with softened polaron excitations, partial Jahn-Teller suppression, and unchanged phonons, absent from the equilibrium phase diagram.
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The study identifies a previously unreported 1×2 surface reconstruction on β-Ga₂O₃(001) formed by paired GaO₄ tetrahedra that remains stable across wide oxygen and gallium chemical potential ranges and matches experimental STEM images.
Hole polarons trap stably on oxygen 2p orbitals with -0.65 eV energy and 0.32 eV migration barrier while excess electrons do not self-trap on niobium in rhombohedral NaNbO3.
DFT calculations identify spin-1, double Weyl, Rarita-Schwinger-Weyl, and double spin-1 excitations plus eight new type-II Weyl points without SOC and twelve more with SOC in PdAsS, PdSbSe, and PdBiTe, with orbital hybridization shaping their low-energy bands.
Chemical disorder plus compositional gradients in FePd films produce finite Dzyaloshinskii-Moriya interactions that stabilize chiral magnetic modulations with mixed Bloch-Néel character.
Oxygen-centered hole polaron formation is energetically preferred over formal Fe4+ in Fe acceptor doped BaTiO3 under oxidizing conditions, limiting Fermi level shifts.
Antiferroically ordered electric toroidal dipole moments act as the order parameter for antiferroaxial rotations that produce chirality in BaTiOCu4(PO4)4, with overall chirality given by the composite of antipolar electric dipoles and toroidal dipoles.
citing papers explorer
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Excitations across the equilibrium and photoinduced `hidden' states of magnetoresistive manganites
Photo-excitation of AFI LCMO produces a long-lived hidden phase with softened polaron excitations, partial Jahn-Teller suppression, and unchanged phonons, absent from the equilibrium phase diagram.
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Unconventional excitations and orbital-driven low-energy dispersions in chiral topological semimetals PdAsS, PdSbSe, and PdBiTe: a first-principles study
DFT calculations identify spin-1, double Weyl, Rarita-Schwinger-Weyl, and double spin-1 excitations plus eight new type-II Weyl points without SOC and twelve more with SOC in PdAsS, PdSbSe, and PdBiTe, with orbital hybridization shaping their low-energy bands.
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Disorder-induced chirality in superconductor-ferromagnet heterostructures revealed by neutron scattering and multiscale modeling
Chemical disorder plus compositional gradients in FePd films produce finite Dzyaloshinskii-Moriya interactions that stabilize chiral magnetic modulations with mixed Bloch-Néel character.