Research paperExperimental CharacterizationTheoreticalDirect observation of Floquet-Bloch states in monolayer grapheneDongsung Choi, Masataka Mogi, Umberto De Giovannini, Doron Azoury et al.2024·10.1126/science.aal2241·arXiv:2404.14392AbstractFloquet engineering is a novel method of manipulating quantum phases of matter via periodic driving. Here, we report direct observation of Floquet-Bloch states in monolayer epitaxial graphene using time- and angle-resolved photoemission spectroscopy with mid-infrared pump excitation. Pump polarization dependence of replica bands shows that they originate from scattering between Floquet-Bloch states and photon-dressed free-electron-like photoemission final states (Volkov states), demonstrating direct observation of Floquet-Bloch states in graphene.Read more
Monolayer epitaxial graphene on SiC measured by static ARPES and time- and angle-resolved photoemission spectroscopy.1 characterization4 properties2 figuresExperimentalCStudied MaterialSiCSubstrate / DielectricExpand
Research paperExperimental CharacterizationTheoreticalDirect observation of Floquet-Bloch states in monolayer grapheneDongsung Choi, Masataka Mogi, Umberto De Giovannini, Doron Azoury et al.2024·10.1126/science.aal2241·arXiv:2404.14392AbstractFloquet engineering is a novel method of manipulating quantum phases of matter via periodic driving. Here, we report direct observation of Floquet-Bloch states in monolayer epitaxial graphene using time- and angle-resolved photoemission spectroscopy with mid-infrared pump excitation. Pump polarization dependence of replica bands shows that they originate from scattering between Floquet-Bloch states and photon-dressed free-electron-like photoemission final states (Volkov states), demonstrating direct observation of Floquet-Bloch states in graphene.Read more
Monolayer epitaxial graphene on SiC measured by static ARPES and time- and angle-resolved photoemission spectroscopy.1 characterization4 properties2 figuresExperimentalCStudied MaterialSiCSubstrate / DielectricExpand
Research paperExperimental CharacterizationTheoreticalDirect observation of Floquet-Bloch states in monolayer grapheneDongsung Choi, Masataka Mogi, Umberto De Giovannini, Doron Azoury et al.2024·10.1126/science.aal2241·arXiv:2404.14392AbstractFloquet engineering is a novel method of manipulating quantum phases of matter via periodic driving. Here, we report direct observation of Floquet-Bloch states in monolayer epitaxial graphene using time- and angle-resolved photoemission spectroscopy with mid-infrared pump excitation. Pump polarization dependence of replica bands shows that they originate from scattering between Floquet-Bloch states and photon-dressed free-electron-like photoemission final states (Volkov states), demonstrating direct observation of Floquet-Bloch states in graphene.Read more
Monolayer epitaxial graphene on SiC measured by static ARPES and time- and angle-resolved photoemission spectroscopy.1 characterization4 properties2 figuresExperimentalCStudied MaterialSiCSubstrate / DielectricExpand
Research paperExperimental CharacterizationTheoreticalDirect observation of Floquet-Bloch states in monolayer grapheneDongsung Choi, Masataka Mogi, Umberto De Giovannini, Doron Azoury et al.2024·10.1126/science.aal2241·arXiv:2404.14392AbstractFloquet engineering is a novel method of manipulating quantum phases of matter via periodic driving. Here, we report direct observation of Floquet-Bloch states in monolayer epitaxial graphene using time- and angle-resolved photoemission spectroscopy with mid-infrared pump excitation. Pump polarization dependence of replica bands shows that they originate from scattering between Floquet-Bloch states and photon-dressed free-electron-like photoemission final states (Volkov states), demonstrating direct observation of Floquet-Bloch states in graphene.Read more
Monolayer epitaxial graphene on SiC measured by static ARPES and time- and angle-resolved photoemission spectroscopy.1 characterization4 properties2 figuresExperimentalCStudied MaterialSiCSubstrate / DielectricExpand