Search Results - "Bianco, Raffaello"

Mapping topological order in coordinate space by Bianco, Raffaello, Resta, Raffaele

“…The organization of the electrons in the ground state is classified by means of topological invariants, defined as global properties of the wave function. Here…”
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Second-order structural phase transitions, free energy curvature, and temperature-dependent anharmonic phonons in the self-consistent harmonic approximation: Theory and stochastic implementation by Bianco, Raffaello, Errea, Ion, Paulatto, Lorenzo, Calandra, Matteo, Mauri, Francesco

“…The self-consistent harmonic approximation is an effective harmonic theory to calculate the free energy of systems with strongly anharmonic atomic vibrations,…”
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Quantum crystal structure in the 250-kelvin superconducting lanthanum hydride by Errea, Ion, Belli, Francesco, Monacelli, Lorenzo, Sanna, Antonio, Koretsune, Takashi, Tadano, Terumasa, Bianco, Raffaello, Calandra, Matteo, Arita, Ryotaro, Mauri, Francesco, Flores-Livas, José A.

“…The discovery of superconductivity at 200 kelvin in the hydrogen sulfide system at high pressures 1 demonstrated the potential of hydrogen-rich materials as…”
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Phonon Collapse and Second-Order Phase Transition in Thermoelectric SnSe by Aseginolaza, Unai, Bianco, Raffaello, Monacelli, Lorenzo, Paulatto, Lorenzo, Calandra, Matteo, Mauri, Francesco, Bergara, Aitor, Errea, Ion

“…Since 2014 the layered semiconductor SnSe in the high-temperature Cmcm phase is known to be the most efficient intrinsic thermoelectric material. Making use of…”
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van der Waals driven anharmonic melting of the 3D charge density wave in VSe2 by Diego, Josu, Said, A. H., Mahatha, S. K., Bianco, Raffaello, Monacelli, Lorenzo, Calandra, Matteo, Mauri, Francesco, Rossnagel, K., Errea, Ion, Blanco-Canosa, S.

“…Understanding of charge-density wave (CDW) phases is a main challenge in condensed matter due to their presence in high- T c superconductors or transition…”
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Anomalous High‐Temperature Superconductivity in YH6 by Troyan, Ivan A., Semenok, Dmitrii V., Kvashnin, Alexander G., Sadakov, Andrey V., Sobolevskiy, Oleg A., Pudalov, Vladimir M., Ivanova, Anna G., Prakapenka, Vitali B., Greenberg, Eran, Gavriliuk, Alexander G., Lyubutin, Igor S., Struzhkin, Viktor V., Bergara, Aitor, Errea, Ion, Bianco, Raffaello, Calandra, Matteo, Mauri, Francesco, Monacelli, Lorenzo, Akashi, Ryosuke, Oganov, Artem R.

“…Pressure‐stabilized hydrides are a new rapidly growing class of high‐temperature superconductors, which is believed to be described within the conventional…”
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How disorder affects the Berry-phase anomalous Hall conductivity: A reciprocal-space analysis by Bianco, Raffaello, Resta, Raffaele, Souza, Ivo

“…The anomalous Hall conductivity of "dirty" ferromagnetic metals is dominated by a Berry-phase contribution which is usually interpreted as an intrinsic…”
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Large impact of phonon lineshapes on the superconductivity of solid hydrogen by Dangić, Ðorđe, Monacelli, Lorenzo, Bianco, Raffaello, Mauri, Francesco, Errea, Ion

“…Phonon anharmonicity plays a crucial role in determining the stability and vibrational properties of high-pressure hydrides. Furthermore, strong anharmonicity…”
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Orbital magnetization as a local property by Bianco, Raffaello, Resta, Raffaele

“…The modern expressions for polarization P and orbital magnetization M are k-space integrals. But a genuine bulk property should also be expressible in r space,…”
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Quantum Enhancement of Charge Density Wave in NbS 2 in the Two-Dimensional Limit by Bianco, Raffaello, Errea, Ion, Monacelli, Lorenzo, Calandra, Matteo, Mauri, Francesco

“…At ambient pressure, bulk 2H-NbS displays no charge density wave instability, which is at odds with the isostructural and isoelectronic compounds 2H-NbSe ,…”
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Quantum Enhancement of Charge Density Wave in NbS2 in the Two-Dimensional Limit by Bianco, Raffaello, Errea, Ion, Monacelli, Lorenzo, Calandra, Matteo, Mauri, Francesco

“…At ambient pressure, bulk 2H-NbS2 displays no charge density wave instability, which is at odds with the isostructural and isoelectronic compounds 2H-NbSe2,…”
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Weak Dimensionality Dependence and Dominant Role of Ionic Fluctuations in the Charge-Density-Wave Transition of NbSe2 by Bianco, Raffaello, Monacelli, Lorenzo, Calandra, Matteo, Mauri, Francesco, Errea, Ion

“…Contradictory experiments have been reported about the dimensionality effect on the charge-density-wave transition in 2H NbSe2. While scanning tunneling…”
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High-pressure phase diagram of hydrogen and deuterium sulfides from first principles: Structural and vibrational properties including quantum and anharmonic effects by Bianco, Raffaello, Errea, Ion, Calandra, Matteo, Mauri, Francesco

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Anharmonicity and Doping Melt the Charge Density Wave in Single-Layer TiSe2 by Zhou, Jianqiang Sky, Monacelli, Lorenzo, Bianco, Raffaello, Errea, Ion, Mauri, Francesco, Calandra, Matteo

“…Low-dimensional systems with a vanishing band gap and a large electron–hole interaction have been proposed to be unstable toward exciton formation. As the…”
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Strong anharmonicity in the phonon spectra of PbTe and SnTe from first principles by Ribeiro, Guilherme S, Paulatto, Lorenzo, Bianco, Raffaello, Errea, Ion, Mauri, Francesco, Calandra, Matteo

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Dominant Role of Quantum Anharmonicity in the Stability and Optical Properties of Infinite Linear Acetylenic Carbon Chains by Romanin, Davide, Monacelli, Lorenzo, Bianco, Raffaello, Errea, Ion, Mauri, Francesco, Calandra, Matteo

“…Carbyne, an infinite-length straight chain of carbon atoms, is supposed to undergo a second order phase transition from the metallic bond-symmetric cumulene…”
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Weak Dimensionality Dependence and Dominant Role of Ionic Fluctuations in the Charge-Density-Wave Transition of NbSe 2 by Bianco, Raffaello, Monacelli, Lorenzo, Calandra, Matteo, Mauri, Francesco, Errea, Ion

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Bending rigidity, sound propagation and ripples in flat graphene by Aseginolaza, Unai, Diego, Josu, Cea, Tommaso, Bianco, Raffaello, Monacelli, Lorenzo, Libbi, Francesco, Calandra, Matteo, Bergara, Aitor, Mauri, Francesco, Errea, Ion

“…Many of the applications of graphene rely on its uneven stiffness and high thermal conductivity, but the mechanical properties of graphene—and, in general, of…”
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Non-trivial quantum geometry and the strength of electron–phonon coupling by Yu, Jiabin, Ciccarino, Christopher J., Bianco, Raffaello, Errea, Ion, Narang, Prineha, Bernevig, B. Andrei

“…Electron–phonon coupling is crucial for the existence of various phases of matter, in particular superconductivity and density waves. Here, we devise a theory…”
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Anharmonicity and Doping Melt the Charge Density Wave in Single-Layer TiSe 2 by Zhou, Jianqiang Sky, Monacelli, Lorenzo, Bianco, Raffaello, Errea, Ion, Mauri, Francesco, Calandra, Matteo

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