Site Selective Detection of Methane Dissociation on Stepped Pt Surfaces

Autor: Ana Gutiérrez-González, Rainer D. Beck, M. E. Torio, H. F. Busnengo

Publikováno v: Topics in Catalysis. 62:859-873

We report a combined experimental and theoretical study comparing methane dissociation on three different platinum surfaces Pt(111), Pt(211), and Pt(110)-(1 × 2). Reflection absorption infrared spectroscopy (RAIRS) was used to detect chemisorbed met

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c4b8da34579fb5b0ea1d9302b19e87e
https://doi.org/10.1007/s11244-019-01170-5

Incommmensurability and unconventional superconductor to insulator transition in the hubbard model with bond-charge interaction

Autor: C. Degli Esposti Boschi, Ariel Dobry, Arianna Montorsi, F. Ortolani, M. E. Torio, Alberto Francesco Anfossi, A. A. Aligia, Claudio Gazza, Liliana Arrachea

Publikováno v: Physical review letters
99 (2007): 206401-1–206401-4. doi:10.1103/PhysRevLett.99.206401
info:cnr-pdr/source/autori:Aligia, A.A.; Anfossi, A.; Arrachea, L.; Degli Esposti Boschi, C.; Dobry, A.O.; Gazza, C.; Montorsi, A.; Ortolani, F.; Torio, M.E./titolo:Incommmensurability and unconventional superconductor to insulator transition in the hubbard model with bond-charge interaction/doi:10.1103%2FPhysRevLett.99.206401/rivista:Physical review letters (Print)/anno:2007/pagina_da:206401-1/pagina_a:206401-4/intervallo_pagine:206401-1–206401-4/volume:99
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
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We determine the quantum phase diagram of the one-dimensional Hubbard model with bond-charge interaction X in addition to the usual Coulomb repulsion U at half-filling. For large enough X and positive U the model shows three phases. For large U the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bd07cdd4c785a9b1ab769ebfe2b935e

Quantum dot with ferromagnetic leads: A density-matrix renormalization group study

Autor: M. E. Torio, Claudio Gazza, Jose Riera

Publikováno v: Physical Review B. 73

A quantum dot coupled to ferromagnetically polarized one-dimensional leads is studied numerically using the density matrix renormalization group method. Several real space properties and the local density of states at the dot are computed. It is show

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4ad71f231d17a89136c30ceaae2d044
https://doi.org/10.1103/physrevb.73.193108

Anderson impurity in the one-dimensional Hubbard model on finite size systems

Autor: M. E. Torio, Claudio Gazza, S. Costamagna, Jose Riera

An Anderson impurity in a Hubbard model on chains with finite length is studied using the density-matrix renormalization group (DMRG) technique. In the first place, we analyzed how the reduction of electron density from half-filling to quarter-fillin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e651eae22458234667cfbef2d5db177

Phase diagram of thet−t′−Uchain at half filling

Autor: M. E. Torio, H. A. Ceccatto, A. A. Aligia

Publikováno v: Physical Review B. 67

We study the half-filled Hubbard chain including next-nearest-neighbor hopping ${t}^{\ensuremath{'}}.$ The model has three phases: one insulating phase with dominant spin-density-wave correlations at large distances (SDWI), another phase with dominan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4dceb02e70405c62969f691266cce882
https://doi.org/10.1103/physrevb.67.165102