374 citations · 2.1k across the 30 of their papers we have counts for
30 papers
Enhanced superconductivity in palladium hydrides by non-perturbative electron-phonon effects
Raffaello Bianco, Ion Errea
Palladium hydrides exhibit the largest isotope-effect anomaly in superconductivity: replacing hydrogen with heavier isotopes increases the superconducting critical temperature. Alt…
Real-space understanding of electron-phonon coupling in superconducting hydrides
Trinidad Novoa, Francesco Belli, Raffaello Bianco +2
Electron-phonon coupling is at the origin of conventional superconductivity, enabling the pairing of electrons into Cooper pairs. The electron-phonon matrix elements depend on the…
Electron-mediated anharmonicity and its role in the Raman spectrum of graphene
Nina Girotto Erhardt, Aloïs Castellano, J. P. Alvarinhas Batista +4
The Raman active G mode in graphene exhibits strong coupling to electrons, yet the comprehensive treatment of this interaction in the calculation of its temperature-dependent Raman…
Lattice thermal conductivity in the anharmonic overdamped regime
Đorđe Dangić, Giovanni Caldarelli, Raffaello Bianco +2
In crystalline materials, low lattice thermal conductivity is often associated with strong anharmonicity, which can cause significant deviations from the expected Lorentzian linesh…
Electronic structure and lattice dynamics of 1T-VSe: origin of the 3D-CDW
Josu Diego, D. Subires, A. H. Said +21
In order to characterize in detail the charge density wave (CDW) transition of 1-VSe, its electronic structure and lattice dynamics are comprehensively studied by means of x…
Reply to "Comment on 'Nontrivial Quantum Geometry and the Strength of Electron-Phonon Coupling', arXiv:2305.02340, J. Yu, C. J. Ciccarino, R. Bianco, I. Errea, P. Narang, B. A. Bernevig"
Jiabin Yu, Christopher J. Ciccarino, Raffaello Bianco +3
This is our reply to "Comment on 'Nontrivial Quantum Geometry and the Strength of Electron-Phonon Coupling', arXiv:2305.02340, J. Yu, C. J. Ciccarino, R. Bianco, I. Errea, P. Naran…
Nontrivial Quantum Geometry and the Strength of Electron-Phonon Coupling
Jiabin Yu, Christopher J. Ciccarino, Raffaello Bianco +3
The coupling of electrons to phonons (electron-phonon coupling) is crucial for the existence of various phases of matter, in particular superconductivity and density waves. Here, w…
Large impact of phonon lineshapes on the superconductivity of solid hydrogen
Đorđe Dangić, Lorenzo Monacelli, Raffaello Bianco +2
Phonon anharmonicity plays a crucial role in determining the stability and vibrational properties of high-pressure hydrides. Furthermore, strong anharmonicity can render phonon qua…
Non-perturbative theory of the electron-phonon coupling and its first-principles implementation
Raffaello Bianco, Ion Errea
The harmonic approximation of ionic fluctuations and the linear coupling between phonons and electrons provide the standard framework to compute, from first principles, the contrib…
Quantum anharmonic enhancement of superconductivity in ScH at high pressures: a first-principles study
Pugeng Hou, Francesco Belli, Raffaello Bianco +1
Making use of first-principles calculations, we analyze the effect of quantum ionic fluctuations and lattice anharmonicity on the crystal structure and superconductivity of P63/mmc…
The Stochastic Self-Consistent Harmonic Approximation: Calculating Vibrational Properties of Materials with Full Quantum and Anharmonic Effects
Lorenzo Monacelli, Raffaello Bianco, Marco Cherubini +3
The efficient and accurate calculation of how ionic quantum and thermal fluctuations impact the free energy of a crystal, its atomic structure, and phonon spectrum is one of the ma…
Strong Anharmonic and Quantum Effects in Pm-3n AlH3 Under High Pressure: A First-Principles Study
Pugeng Hou, Francesco Belli, Raffaello Bianco +1
Motivated by the absence of experimental superconductivity in the metallic Pm-3n phase of AlH3 despite the predictions, we reanalyze its vibrational and superconducting properties…
Phonon collapse and van der Waals melting of the 3D charge density wave of VSe
Josu Diego, A. H. Said, S. K. Mahatha +7
Among transition metal dichalcogenides (TMDs), VSe is considered to develop a purely 3-dimensional (3D) charge-density wave (CDW) at T=110 K. Here, by means of high res…
Theory of the thickness dependence of the charge density wave transition in 1T-TiTe
Jianqiang Sky Zhou, Raffaello Bianco, Lorenzo Monacelli +3
Most metallic transition metal dichalcogenides undergo charge density wave (CDW) instabilities with similar or identical ordering vectors in bulk and in single layer, albeit with d…
Bending rigidity, sound propagation and ripples in flat graphene
Unai Aseginolaza, Josu Diego, Tommaso Cea +7
Despite many of the applications of graphene rely on its uneven stiffness and high thermal conductivity, the mechanical properties of graphene, and in general of all 2D materials,…
Weak Dimensionality Dependence and Dominant Role of Ionic Fluctuations in the Charge-Density-Wave Transition of NbSe
Raffaello Bianco, Lorenzo Monacelli, Matteo Calandra +2
Contradictory experiments have been reported about the dimensionality effect on the charge-density-wave transition in 2H NbSe. While scanning tunnelling experiments on single l…
Anharmonic melting of the charge density wave in single-layer TiSe2
Jianqiang Sky Zhou, Lorenzo Monacelli, Raffaello Bianco +3
Low dimensional systems with a vanishing band-gap and a large electron-hole interaction have been proposed to be unstable towards exciton formation. As the exciton binding energy i…
Quantum Crystal Structure in the 250 K Superconducting Lanthanum Hydride
Ion Errea, Francesco Belli, Lorenzo Monacelli +8
The discovery of superconductivity at 200 K in the hydrogen sulfide system at large pressures [1] was a clear demonstration that hydrogen-rich materials can be high-temperature sup…
Strong anharmonicity and high thermoelectric efficiency in high temperature SnS from first-principles
Unai Aseginolaza, Raffaello Bianco, Lorenzo Monacelli +5
SnS and SnSe are isoelectronic materials with a common phase diagram. Recently, SnSe was found to be the most efficient intrinsic thermoelectric material in its high-temperature Cm…
Quantum enhancement of charge density wave in NbS in the 2D limit
Raffaello Bianco, Ion Errea, Lorenzo Monacelli +2
At ambient pressure, bulk 2H-NbS displays no charge density wave instability at odds with the isostructural and isoelectronic compounds 2H-NbSe, 2H-TaS and 2H-TaSe,…
Phonon Collapse and Second-Order Phase Transition in Thermoelectric SnSe
Unai Aseginolaza, Raffaello Bianco, Lorenzo Monacelli +5
Since 2014 the layered semiconductor SnSe in the high-temperature Cmcm phase is known to be the most efficient thermoelectric material. Making use of first-principles calculations…
High-pressure phase diagram of hydrogen and deuterium sulfides from first principles: structural and vibrational properties including quantum and anharmonic effects
Raffaello Bianco, Ion Errea, Matteo Calandra +1
We study the structural and vibrational properties of the high-temperature superconducting sulfur trihydride and trideuteride in the high-pressure and phases by…
Anharmonic phonon spectra of PbTe and SnTe in the self-consistent harmonic approximation
Guilherme A. Ribeiro, Lorenzo Paulatto, Raffaello Bianco +3
At room temperature, PbTe and SnTe are efficient thermoelectrics with a cubic structure. At low temperature, SnTe undergoes a ferroelectric transition with a critical temperature s…
Critical role of the exchange interaction for the electronic structure and charge-density-wave formation in TiSe2
Maria Hellgren, Jacopo Baima, Raffaello Bianco +3
We show that the inclusion of screened exchange via hybrid functionals provides a unified description of the electronic and vibrational properties of TiSe2. In contrast to local ap…