Concept

Énergie de Fermi

Publications associées (303)

Observation of filled states at the Fermi-level in alkali-metal intercalated organic films: dependence on substrate work function

We present ultraviolet photoelectron spectroscopy studies on alkali metal-intercalated thin films of electroluminescent p-sexiphenyl (6P) and the organic hole transporting material N,N'-bis-(1-naphthyl)-N,N'-diphenyll-1,1-biphenyl1-4,4'-diamine (alpha-NPD) ...

Elsevier2005

Bulk sensitive photoemission: first results of VOLPE project at ESRF

Marco Grioni

We present recent results obtained with a novel spectrometer developed within the EU project VOLPE (VOLume PhotoEmission from solids with synchrotron radiation), now operational at ESRF (Beamline ID 16), where we were able to achieve high energy resolution ...

Elsevier2005

Study of novel electronic conductors

Neven Barisic

This thesis presents the results of a concerted effort to understand the complex array of physical properties exhibited by the BaVS3 family of materials. As a 3d1 system, BaVS3 displays a unique collection of correlation-driven phenomena, including a metal ...

EPFL2005

Construction d'un microscope à effet tunnel à basse température et études d'impuretés magnétiques en surfaces

Laurent Claude

This thesis reports on the design and construction of a novel experimental setup for the study of surface magnetic systems. This setup consists of a scanning tunneling microscope (STM) designed for ultra high vacuum (UHV) operating at T ≲ 1 K and str ...

EPFL2005

Electronic and vibrational properties of the low-dimensional perovskites Sr1-yLayNbO3.5-x

Marco Grioni

By angle-resolved photoemission spectroscopy and polarization-dependent infrared reflectivity measurements the electronic and vibrational properties of the low-dimensional perovskites Sr1-yLayNbO3.5-x were studied along different crystal directions. The el ...

2004

Electronic structure of a quasi-one-dimensional insulator: The molybdenum red bronze K0.33MoO3

Giorgio Margaritondo, László Forró, Marco Grioni, Luca Perfetti, Neven Barisic

High-resolution angle-resolved photoemission (ARPES) displays quasi-one dimensional (1D) electronic states in the insulating molybdenum red bronze K0.33MoO3, in good qualitative agreement with band structure calculations. Combined ARPES, optical conductivi ...

2004

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

Angle-resolved photoemission spectroscopic properties of quasi-one-dimensional crystals

Slobodan Mitrovic

Abstract Electronic properties of low-dimensional systems — and particularly quasi-one-dimensional systems — together with related correlated electron phenomena have for quite some time been at the very frontier of condensed matter physics. The interest ra ...

EPFL2004

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

Phase diagram and electronic properties of high-T-c superconducting oxides

Davor Pavuna

We firstly briefly summarize some of the most relevant recent results and open questions across rather complex electronic phase diagram of cuprates. We continue with a discussion of results on thin superconducting oxide films grown by laser ablation. Syste ...

2003

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