Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Blesio, G."'
Publikováno v:
Phys. Rev. B 107, 134418 (2023)
Zero-point quantum fluctuations of a N\'eel order can produce effective interactions between quasi-orphan spins weakly coupled to the lattice. On the $\sqrt{3}\times\sqrt{3}-$distorted triangular lattice, this phenomenon leads to a correlated partial
Externí odkaz:
http://arxiv.org/abs/2301.09446
Autor:
Blesio, G. G., Aligia, A. A.
In a recent experiment [Trishin et al., Phys. Rev. Lett. 127, 236801 (2021)] a rich physics was observed for Fe atoms on MoS$_2$/Au(111), characterized by three different behaviors depending on the spectral density of the substrate $\rho_c$: one domi
Externí odkaz:
http://arxiv.org/abs/2301.08159
Local quantum phase transitions driven by Kondo correlations have been theoretically proposed in several magnetic nanosystems; however, clear experimental signatures are scant. Modeling a nickelocene molecule on a Cu(100) substrate as a two-orbital A
Externí odkaz:
http://arxiv.org/abs/2205.10476
The paradigm of Landau's Fermi liquid theory has been challenged with the finding of a strongly interacting Fermi liquid that cannot be adiabatically connected to a non-interacting system. A spin-1 two-channel Kondo impurity with anisotropy D has a q
Externí odkaz:
http://arxiv.org/abs/2105.13248
Publikováno v:
Phys. Rev. B 100, 075434 (2019)
We study the low-temperature properties of the generalized Anderson impurity model in which two localized configurations, one with two doublets and the other with a triplet, are mixed by two degenerate conduction channels. By using the numerical reno
Externí odkaz:
http://arxiv.org/abs/1906.06799
Publikováno v:
Phys. Rev. B 99, 174411 (2019)
We study the infinite-U Hubbard model on ladders of 2, 4 and 6 legs with nearest (t) and next-nearest (t') neighbor hoppings by means of the density-matrix renormalization group algorithm. In particular, we analyze the stability of the Nagaoka state
Externí odkaz:
http://arxiv.org/abs/1905.05838
Publikováno v:
Phys. Rev. B 98, 195435 (2018)
We study a generalized Anderson model that mixes two localized configurations --one formed by two degenerate doublets and the other by a triplet with single-ion anisotropy $DS_z^2$-- by means of two degenerate conduction channels. The model has been
Externí odkaz:
http://arxiv.org/abs/1805.11518
Autor:
Gonzalez, M. G., Lisandrini, F. T., Blesio, G. G., Trumper, A. E., Gazza, C. J., Manuel, L. O.
Publikováno v:
Phys. Rev. Lett. 122, 017201 (2019)
Partial disorder --the microscopic coexistence of long-range magnetic order and disorder-- is a rare phenomenon, that has been experimental and theoretically reported in some Ising- or easy plane-spin systems, driven by entropic effects at finite tem
Externí odkaz:
http://arxiv.org/abs/1804.06720
Autor:
Barral, M. A., Di Napoli, S., Blesio, G., Roura-Bas, P., Camjayi, A., Manuel, L. O., Aligia, A. A.
Publikováno v:
J. Chem. Phys. 146, 092315 (2017)
Combining ab initio calculations and effective models derived from them, we discuss the electronic structure of oxygen doped gold chains when one Au atom is replaced by any transition-metal atom of the $3d$ series. The effect of O doping is to bring
Externí odkaz:
http://arxiv.org/abs/1701.07080
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