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Observation of an electrically tunable band gap in trilayer graphene
Monolayer graphene has no electronic band gap. Bilayer graphene does, and can be controlled by an electric field. And for trilayer graphene, infrared transmission measurements indicate bothExpand
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Gate tunable infrared phonon anomalies in bilayer graphene.
We observe a giant increase of the infrared intensity and a softening of the in-plane antisymmetric phonon mode E(u) ( approximately 0.2 eV) in bilayer graphene as a function of the gate-inducedExpand
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Theory of strain in single-layer transition metal dichalcogenides
Strain engineering has emerged as a powerful tool to modify the optical and electronic properties of two-dimensional crystals. Here we perform a systematic study of strained semiconducting transitionExpand
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Fermi-surface shrinking and interband coupling in iron-based pnictides.
Recent measurements of the Fermi surface with de Haas-van Alphen oscillations in LaFePO showed a shrinking of the Fermi pockets with respect to first-principle calculations, suggesting an energyExpand
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Small Fermi energy and phonon anharmonicity in MgB2 and related compounds
The remarkable anharmonicity of the E2g phonon in MgB2 has been suggested in literature to play a primary role in its superconducting pairing. We investigate, by means of LDA calculations, theExpand
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Coupling of the As A1g phonon to magnetism in iron pnictides
of this entanglement is the behavior of the A1g As-phonon resonance in the different polarization symmetries of Raman spectroscopy when undergoing the magnetostructural transition. In this work, weExpand
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Nonadiabatic phenomenology in small Fermi energy superconductors
Abstract High- T c and unconventional superconductivity appears in a number of different materials with different physical properties. A common characteristics shared by almost all these compounds isExpand
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Charge fluctuations and electron-phonon interaction in the finite-$U$ Hubbard model
Recent experiments have triggered a renewed interest for a theoretical understanding of the electron–phonon (el–ph) properties in strongly correlated systems. We employ a gaussian expansion withinExpand
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Interactions and superconductivity in heavily doped MoS2
F.G. acknowledges financial support fromMINECO, Spain, through Grant No. FIS2011-23713, and the European Union, through Grant No. 290846. R.R. acknowledges financial support from the Juan de laExpand
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Momentum dependence of spin–orbit interaction effects in single-layer and multi-layer transition metal dichalcogenides
One of the main characteristics of the new family of two-dimensional crystals of semiconducting transition metal dichalcogenides (TMDs) is the strong spin–orbit interaction, which makes them veryExpand
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