Publications related to Fermi surface

Valence Level Character in a Mixed Perovskite Material and Determination of the Valence Band Maximum from Photoelectron Spectroscopy: Variation with Photon Energy

Ulf Anders Hagfeldt, Juan-Pablo Correa-Baena, Tor Jesper Jacobsson

A better understanding of the electronic structure of perovskite materials used in photovoltaic devices is essential for their development and optimization. In this investigation, synchrotron-based photoelectron spectroscopy (PES) was used to experimentall ...

American Chemical Society2017

Variation of the Fermi level and the Electrostatic Force of a Metallic Nanoparticle upon Colliding with an Electrode

Hubert Girault, Pekka Eero Peljo

When a metallic nanoparticle (NP) comes in close contact with an electrode, its Fermi level equilibrates with that of the electrode if their separation is less than the cut-off distance for electron tunnelling. In the absence of chemical reactions in solut ...

Royal Soc Chemistry2017

Study of Si doped VO2 thin films for solar thermal applications

Andreas Schueler, Anna Krammer, Olivia Valérie Charlotte Bouvard

A new generation of smart solar thermal collectors is based on thermochromic thin film technology. Thermochromic absorber coatings change their optical properties with temperature, particularly in the infrared range. In order to prevent overheating, the co ...

Elsevier Science Bv2017

Persistence of a surface state arc in the topologically trivial phase of MoTe2

Marco Grioni, Arnaud Magrez, Oleg Yazyev, Helmuth Berger, Philippe Bugnon, Alberto Crepaldi, Gabriel Albert Autes

The prediction of Weyl fermions in the low-temperature noncentrosymmetric 1T' phase of MoTe2 still awaits clear experimental confirmation. Here, we report angle-resolved photoemission (ARPES) data and ab initio calculations that reveal a surface state arc ...

Amer Physical Soc2017

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Mohammad Ibrahim Dar, Mojtaba Abdi Jalebi

Here, we demonstrate the incorporation of monovalent cation additives into CH3NH3PbI3 perovskite in order to adjust the optical, excitonic, and electrical properties. The possibility of doping was investigated by adding monovalent cation halides with simil ...

Journal Of Visualized Experiments2017

Gate Tuning of Electronic Phase Transitions in Two-Dimensional NbSe2

László Forró, Helmuth Berger

Recent experimental advances in atomically thin transition metal dichalcogenide (TMD) metals have unveiled a range of interesting phenomena including the coexistence of charge-density-wave (CDW) order and superconductivity down to the monolayer limit. The ...

Amer Physical Soc2016

Nature and topology of the low-energy states in ZrTe5

Marco Grioni, Helmuth Berger, Luca Moreschini, Jens Christian Johannsen

Long known for its peculiar resistivity, showing a thus far unexplained anomalous peak as a function of temperature, ZrTe5 has recently received rising attention in a somewhat different context. While both theoretical and experimental results seem to point ...

Amer Physical Soc2016

Charge distribution and Fermi level in bimetallic nanoparticles

Pekka Eero Peljo

Upon metal-metal contact, a transfer of electrons will occur between the metals until the Fermi levels in both phases are equal, resulting in a net charge difference across the metal-metal interface. Here, we have examined this contact electrification in b ...

Royal Society of Chemistry2016

SmB6 electron-phonon coupling constant from time- and angle-resolved photoelectron spectroscopy

Alberto Crepaldi, Emmanouil Frantzeskakis

SmB6 is a mixed valence Kondo system resulting from the hybridization between localized f electrons and delocalized d electrons. We have investigated its out-of-equilibrium electron dynamics by means of time- and angle-resolved photoelectron spectroscopy. ...

Amer Physical Soc2016

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Fermi surface

Valence Level Character in a Mixed Perovskite Material and Determination of the Valence Band Maximum from Photoelectron Spectroscopy: Variation with Photon Energy

Variation of the Fermi level and the Electrostatic Force of a Metallic Nanoparticle upon Colliding with an Electrode

Study of Si doped VO2 thin films for solar thermal applications

Persistence of a surface state arc in the topologically trivial phase of MoTe2

Thermodynamic anomaly above the superconducting critical temperature in the quasi-one-dimensional superconductorTa4Pd3Te16

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Gate Tuning of Electronic Phase Transitions in Two-Dimensional NbSe2

Nature and topology of the low-energy states in ZrTe5

Charge distribution and Fermi level in bimetallic nanoparticles

SmB6 electron-phonon coupling constant from time- and angle-resolved photoelectron spectroscopy

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Chat with Graph Search

Persistence of a surface state arc in the topologically trivial phase of MoTe2

Thermodynamic anomaly above the superconducting critical temperature in the quasi-one-dimensional superconductorTa4Pd3Te16

Valence Level Character in a Mixed Perovskite Material and Determination of the Valence Band Maximum from Photoelectron Spectroscopy: Variation with Photon Energy

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Nature and topology of the low-energy states in ZrTe5

Charge distribution and Fermi level in bimetallic nanoparticles

SmB6 electron-phonon coupling constant from time- and angle-resolved photoelectron spectroscopy

Variation of the Fermi level and the Electrostatic Force of a Metallic Nanoparticle upon Colliding with an Electrode

Gate Tuning of Electronic Phase Transitions in Two-Dimensional NbSe2

Study of Si doped VO2 thin films for solar thermal applications