Publications associées à Liquide de Fermi

Direct photoemission spectroscopy and electronic properties of in situ grown, strained high-T-c and related oxide films

Giorgio Margaritondo, Davor Pavuna, Dusan Vobornik, Dominique Cloëtta, Mike Abrecht

We have optimized laser ablation thin film deposition and transfer procedures within synchrotron vault, specifically to perform angle-integrated and angle-resolved photoemission spectroscopy (ARPES) on high-T-c and related films without cleaving the sample ...

2004

Influence of higher d-wave gap harmonics on the dynamical magnetic susceptibility of high-temperature superconductors

Henrik Moodysson Rønnow, Joël Mesot

Using a fermiology approach to the computation of the magnetic susceptibility measured by neutron scattering in hole-doped high-T-c superconductors, we estimate the effects on the incommensurate peaks caused by higher d-wave harmonics of the superconductin ...

2004

Spectroscopic signatures of a bandwidth-controlled Mott transition at the surface of 1T-TaSe2

Marco Grioni, Helmuth Berger, Luca Perfetti

High-resolution angle-resolved photoemission data show that a metal-insulator Mott transition occurs at the surface of the quasi-two-dimensional compound 1T-TaSe2. The transition is driven by the narrowing of the Ta 5d band induced by a temperature-depende ...

American Physical Society2003

Quasiparticle scattering processes in a model Fermi liquid: 1T-TiTe2

Giorgio Margaritondo, Marco Grioni, Helmuth Berger, Luca Perfetti

We performed angle-resolved photoelectron spectroscopy (ARPES) and resistivity measurements on the layered metal 1T-TiTe2. We determined the quasiparticle dispersion and lifetime. In particular, we could characterize and separately evaluate the effects of ...

2002

Mobile small polarons and the Peierls transition in the quasi-one-dimensional conductor K0.3MoO3

Giorgio Margaritondo, László Forró, Marco Grioni, Luca Perfetti

High-resolution angle-resolved photoemission spectroscopy (ARPES) on the quasi-one-dimensional Peierls system K0.3MoO3 reveals a "hidden" open Fermi surface and band features displaying the symmetry properties of the underlying lattice. However, the ARPES ...

2002

New spectroscopy solves an old puzzle: The Kondo scale in heavy fermions

Marco Grioni

Resonant inelastic x-ray scattering (RIXS) yields clear evidence of spectroscopic Kondo scales in heavy fermions. In YbInCu4 and YbAgCu4 RIXS probes the Yb2+ component of the hybrid ground state and the temperature dependence of the Yb 4f occupation. We re ...

American Physical Society2002

Truly bulk-sensitive spectroscopic measurements of valence in heavy fermion materials

Marco Grioni

Intermediate valence is one of the typical phenomena of systems with strong electronic correlation. The Anderson impurity model predicts a scaling of the valence with the reduced temperature T/T-K, which is difficult to observe by traditional surface-sensi ...

International Union of Crystallography2002

The spectroscopic properties of 1D Peierls systems

Giorgio Margaritondo, Marco Grioni, Helmuth Berger, Luca Perfetti

We have studied by high resolution ARPES the spectroscopic properties of the prototype charge density wave system (TaSe4)(2)I and of the closely related insulating compound (NbSe4)(3)I. We observe features dispersing with the lattice periodicity, including ...

2001

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Liquide de Fermi

Direct photoemission spectroscopy and electronic properties of in situ grown, strained high-T-c and related oxide films

Influence of higher d-wave gap harmonics on the dynamical magnetic susceptibility of high-temperature superconductors

Photoemission studies of thin films grown by pulsed laser deposition

Spectroscopic signatures of a bandwidth-controlled Mott transition at the surface of 1T-TaSe2

Fermi liquid and non-Fermi liquid spectral lineshapes in low-dimensional solids

Quasiparticle scattering processes in a model Fermi liquid: 1T-TiTe2

Mobile small polarons and the Peierls transition in the quasi-one-dimensional conductor K0.3MoO3

New spectroscopy solves an old puzzle: The Kondo scale in heavy fermions

Truly bulk-sensitive spectroscopic measurements of valence in heavy fermion materials

The spectroscopic properties of 1D Peierls systems

Graph Chatbot

Chattez avec Graph Search

Direct photoemission spectroscopy and electronic properties of in situ grown, strained high-T-c and related oxide films

Spectroscopic signatures of a bandwidth-controlled Mott transition at the surface of 1T-TaSe2

Photoemission studies of thin films grown by pulsed laser deposition

Fermi liquid and non-Fermi liquid spectral lineshapes in low-dimensional solids

Influence of higher d-wave gap harmonics on the dynamical magnetic susceptibility of high-temperature superconductors

Quasiparticle scattering processes in a model Fermi liquid: 1T-TiTe2

Mobile small polarons and the Peierls transition in the quasi-one-dimensional conductor K0.3MoO3

New spectroscopy solves an old puzzle: The Kondo scale in heavy fermions

Truly bulk-sensitive spectroscopic measurements of valence in heavy fermion materials

The spectroscopic properties of 1D Peierls systems