13 citations · 13 across the 2 of their papers we have counts for
7 papers
Frustrated magnetic interactions in a cyclacene crystal
R. Ortiz, J. C. Sancho-García, J. Fernández-Rossier
We study the emergence of magnetism and its interplay with structural properties in a two dimensional molecular crystal of cyclacenes, using density functional theory (DFT). Isolat…
Renormalization of spin excitations and Kondo effect in open shell nanographenes
David Jacob, Ricardo Ortiz, Joaquín Fernández-Rossier
We study spin excitations and Kondo effect in open-shell nanographenes, motivated by recent scanning tunneling inelastic spectroscopy experiments. Specifically, we consider three s…
Probing local moments in nanographenes with electron tunneling spectroscopy
Ricardo Ortiz, Joaquín Fernández-Rossier
The emergence of local moments in graphene zigzag edges, grain boundaries, vacancies and sp3 defects has been widely studied theoretically. However, conclusive experimental evidenc…
Emergent quantum matter in graphene nanoribbons
J. L. Lado, R. Ortiz, J. Fernandez-Rossier
In this book chapter, we introduce different schemes to create quantum states of matter in engineered graphene nanoribbons. We will focus on the emergence of controllable magnetic…
Exchange rules for diradical π-conjugated hydrocarbons
Ricardo Ortiz, Roberto Álvarez Boto, Noel García-Martínez +3
A variety of planar π-conjugated hydrocarbons such as heptauthrene, Clar's goblet and, recently synthesized, triangulene have two electrons occupying two degenerate molecular orbit…
Resonant inelastic x-ray scattering study of bond order and spin excitations in nickelate thin-film structures
K. Fürsich, Y. Lu, D. Betto +13
We used high-resolution resonant inelastic x-ray scattering (RIXS) at the Ni edge to simultaneously investigate high-energy interband transitions characteristic of Ni-O bond…