37 citations · 90 across the 7 of their papers we have counts for
8 papers
Possible inversion symmetry breaking in the pyrochlore Heisenberg magnet
Imre Hagymási, Robin Schäfer, Roderich Moessner +1
We address the ground-state properties of the long-standing and much-studied three-dimensional quantum spin liquid candidate, the pyrochlore Heisenberg antiferromagne…
Dynamical topological quantum phase transitions in nonintegrable models
I. Hagymási, C. Hubig, Ö. Legeza +1
We consider sudden quenches across quantum phase transitions in the XXZ model starting from the Haldane phase. We demonstrate that dynamical phase transitions may occur durin…
Entanglement and magnetism in high-spin graphene nanodisks
I. Hagymasi, O. Legeza
We investigate the ground-state properties of triangular graphene nanoflakes with zigzag edge configurations. The description of zero-dimensional nanostructures requires accurate m…
A magnetic phase-transition graphene transistor with tunable spin polarization
Peter Vancso, Imre Hagymasi, Levente Tapaszto
Graphene nanoribbons (GNRs) have been proposed as potential building blocks for field effect transistor (FET) devices due to their quantum confinement bandgap. Here, we propose a n…
Interaction effects in a chaotic graphene quantum billiard
Imre Hagymasi, Peter Vancso, Andras Palinkas +1
We investigate the local electronic structure of a Sinai-like, quadrilateral graphene quantum billiard with zigzag and armchair edges using scanning tunneling microscopy at room te…
Competition between Hund's coupling and Kondo effect in a one-dimensional extended periodic Anderson model
I. Hagymasi, J. Solyom, O. Legeza
We study the ground-state properties of an extended periodic Anderson model to understand the role of Hund's coupling between localized and itinerant electrons using the density-ma…