Zobrazeno 1 - 10
of 362 499
pro vyhledávání: '"Hove"'
Itinerant-electron metamagnetism is investigated within the Hubbard model for various lattices having van Hove singularities (vHS) in the electronic spectrum: face-centered cubic and orthorhombic lattices. The remarkable itinerant-electron metamagnet
Externí odkaz:
http://arxiv.org/abs/2411.15748
The discovery of Mott insulators and superconductivity in twisted bilayer graphene has ignited intensive research into strong correlation effects in other stacking geometries. Bernal-stacked bilayer graphene (BBG), when subjected to a perpendicular e
Externí odkaz:
http://arxiv.org/abs/2410.05387
Autor:
Nag, Pranab Kumar, Batabyal, Rajib, Ingham, Julian, Morali, Noam, Tan, Hengxin, Koo, Jahyun, Consiglio, Armando, Liu, Enke, Avraham, Nurit, Queiroz, Raquel, Thomale, Ronny, Yan, Binghai, Felser, Claudia, Beidenkopf, Haim
Materials hosting flat bands at the vicinity of the Fermi level promote exotic symmetry broken states. Common to many of these are van Hove singularities at saddle points of the dispersion or even higher-order van Hove singularities where the dispers
Externí odkaz:
http://arxiv.org/abs/2410.01994
Autor:
Chapai, Ramakanta, Koshelev, Alexei E., Smylie, Matthew P., Chung, Duck Young, Kayani, Asghar, Bhatt, Khushi, Rimal, Gaurab, Kanatzidis, Mercouri G., Kwok, Wai-Kwong, Mitchell, John, Welp, Ulrich
Van Hove singularities (vHs) located close to the Fermi level in Kagome superconductors AV3Sb5 (A = K, Rb, Cs) have profound influence on their electronic and transport characteristics. Specifically, magneto-transport and susceptibility measurements
Externí odkaz:
http://arxiv.org/abs/2411.16625
ATi$_3$Bi$_5$ (A = Cs or Rb) are emerging topological kagome metals that exhibit superconductivity and nematicity without intertwining translational symmetry-breaking charge orders. In this work, we explore the Fermionology of their titanium kagome e
Externí odkaz:
http://arxiv.org/abs/2410.20944
Motivated by the growing interest in band structures featuring higher-order Van Hove singularities (HOVHS), we investigate a spinless fermion kagome system characterized by nearest-neighbor (NN) and next-nearest-neighbor (NNN) hopping amplitudes. Whi
Externí odkaz:
http://arxiv.org/abs/2410.07000