7 papers
Prediction of two-dimensional -electron half-metallic ferrimagnets
J. Phillips, J. C. G. Henriques, J. Fernández-Rossier +1
We propose a strategy to obtain conducting organic materials with fully spin-polarized Fermi surface, lying at a singular flat band, with antiferromagnetically coupled magnetic mom…
Ultra-long-range spin coupling in graphene revealed by atomically resolved spin excitations
Beatriz Viña-Bausá, Antonio. T. Costa, Joao Henriques +6
Magnetic interactions between localized spins-1/2 play a central role in quantum magnetism, spin-based quantum computing, and quantum simulation. The range and strength of these in…
Two topological phases in exchange alternating spin-1 nanographene chains
João C. G. Henriques, Yelko del Castillo, Ricardo Segundo +2
Magnetic nanographenes are emerging as versatile building blocks for artificial spin lattices, enabling the exploration of flagship one-dimensional quantum-magnetism models with un…
Preparation of the single-spinon wave function on a quantum computer
D. Faílde, A. Gómez, J. Fernández-Rossier
We address the problem of how to prepare single-spinon wave functions, relevant for one-dimensional spin models, in a quantum computer. We adopt the recently proposed ansat…
Characterizing AKLT Hamiltonian with Scanning Tunneling Spectroscopy
M. Ferri-Cortés, J. C. G. Henriques, J. Fernández-Rossier
The AKLT Hamiltonian is a particular instance of a general class of model Hamiltonians defined in lattices with coordination where each site hosts a spins , interacting…
On determining the energy dispersion of spin excitations with scanning tunneling spectroscopy
J. C. G. Henriques, Chenxiao Zhao, G. Catarina +3
Conventional methods to measure the dispersion relations of collective spin excitations involve probing bulk samples with particles such as neutrons, photons or electrons, which ca…