15 citations · 42 across the 7 of their papers we have counts for
8 papers
Competing magnetic and spin vestigial orders from continuum field theory
Niccolò Francini, Lukas Janssen
We study magnetic systems featuring competing antiferromagnetic and spin-nematic phases, described by dipolar primary and quadrupolar secondary order parameters. While the antiferr…
Phase diagram of magnetic Skyrmions on three-dimensional lattices and the toroidal antiSkyrmion
Niccolò Francini, Stefano Bolognesi, Sven Bjarke Gudnason +1
Magnetic Skyrmions are planar solitons stabilized by the Dzyaloshinskii-Moriya interaction (DMI) and realized in chiral magnets. We study their natural three-dimensional generaliza…
Exact nematic and mixed magnetic phases driven by competing orders on the pyrochlore lattice
Niccolò Francini, Lukas Schmidt, Lukas Janssen +1
Pyrochlore magnets are a paradigmatic example of three-dimensional frustrated systems and provide an excellent platform for studying a variety of exotic many-body phenomena, includ…
Ferrimagnetism from quantum fluctuations in Kitaev materials
Niccolò Francini, Pedro M. Cônsoli, Lukas Janssen
Ferrimagnetism appears in the temperature-field phase diagrams of several candidate Kitaev materials, such as the honeycomb cobaltates NaCoTeO and NaCoSbO.…
Ferrimagnetism from triple-q order in NaCoTeO
Niccolò Francini, Lukas Janssen
The candidate Kitaev magnet NaCoTeO exhibits a characteristic ferrimagnetic response at low temperatures, with a finite residual magnetization that changes sign at a co…
Higher-Rank Spin Liquids and Spin Nematics from Competing Orders in Pyrochlore Magnets
Niccolò Francini, Lukas Janssen, Daniel Lozano-Gómez
Pyrochlore magnets have proven to provide an excellent arena for the realization of a variety of many-body phenomena such as classical and quantum order-by-disorder, as well as spi…
Spin vestigial orders in extended Heisenberg-Kitaev models near hidden SU(2) points: Application to NaCoTeO
Niccolò Francini, Lukas Janssen
The honeycomb magnet NaCoTeO has recently been argued to realize an approximate hidden SU(2) symmetry that can be understood by means of a duality transformation. Using…
Non-compact lattice Higgs model with Abelian discrete gauge groups: phase diagram and gauge symmetry enlargement
Claudio Bonati, Niccolò Francini
We study the phase diagram and phase transitions of the three dimensional multicomponent lattice Higgs model with non-compact Abelian discrete groups. The model with non-compact U(…