38 citations · 56 across the 7 of their papers we have counts for
7 papers
Theory of atomic-scale direct thermometry using ESR-STM
Y. del Castillo, J. Fernández-Rossier
Knowledge of the occupation ratio and the energy splitting of a two-level system yields a direct readout of its temperature. Based on this principle, the determination of the tempe…
Gapless spin excitations in nanographene-based antiferromagnetic spin-1/2 Heisenberg chains
Chenxiao Zhao, Lin Yang, João C. G. Henriques +8
Haldane's seminal work established two fundamentally different types of excitation spectra for antiferromagnetic Heisenberg quantum spin chains: gapped excitations in integer-spin…
Building spin-1/2 antiferromagnetic Heisenberg chains with diaza-nanographenes
Xiaoshuai Fu, Li Huang, Kun Liu +13
Understanding and engineering the coupling of spins in nanomaterials is of central importance for designing novel devices. Graphene nanostructures with π-magnetism offer a chemical…
Non-resonant electric quantum control of individual on-surface spins
Santiago A. Rodríguez, Sergio S. Gómez, Joaquín Fernández-Rossier +1
Quantum control techniques play an important role in manipulating and harnessing the properties of different quantum systems, including isolated atoms. Here, we propose to achieve…
Tunable topological phases in nanographene-based spin-1/2 alternating-exchange Heisenberg chains
Chenxiao Zhao, Gonçalo Catarina, Jin-Jiang Zhang +8
Unlocking the potential of topological order within many-body spin systems has long been a central pursuit in the realm of quantum materials. Despite extensive efforts, the quest f…
Probing spin fractionalization with ESR-STM absolute magnetometry
Y. del Castillo, J. Fernández-Rossier
The emergence of effective spins at the edges of Haldane spin chains is one of the simplest examples of fractionalization. Whereas there is indirect evidence of this…
From Heisenberg to Hubbard: An initial state for the shallow quantum simulation of correlated electrons
Bruno Murta, Joaquín Fernández-Rossier
The widespread use of the noninteracting ground state as the initial state for the digital quantum simulation of the Fermi-Hubbard model is largely due to the scarcity of alternati…