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Nature of native atomic defects in ZrTe5 and their impact on the low-energy electronic structure

Publications associées (48)

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Local resilience of the 1T-TiSe2 charge density wave to Ti self-doping

Helmuth Berger, Elia Razzoli, Philipp Aebi

In Ti-intercalated self-doped 1T-TiSe2 crystals, the charge density wave (CDW) superstructure induces two nonequivalent sites for Ti dopants. Recently, it has been shown that increasing Ti doping dramatically influences the CDW by breaking it into phase-sh ...

Amer Physical Soc2017

Atomic-Scale Imaging and Spectroscopy of Electroluminescence at Molecular Interfaces

Klaus Kern, Christoph Grosse

The conversion of electric power to light is an important scientific and technological challenge. Advanced experimental methods have provided access to explore the relevant microscopic processes at the nanometer scale. Here, we review state-of-the-art stud ...

Amer Chemical Soc2017

An operando emission spectroscopy study of Pt/Al2O3 and Pt/CeO2/Al2O3

Davide Ferri, Oliver Kröcher

In situ time-resolved spectroscopic examination of catalysts based on well dispersed nanoparticles on metal oxides under transient conditions significantly facilitates the elucidation of reaction mechanisms. In this contribution, we demonstrate the level o ...

Royal Soc Chemistry2016

The present invention relates to an infrared absorption spectroscopy apparatus including an infrared transparent substrate comprising a first and second surface, an array of plasmonic nano-antennas arranged on the first surface of the infrared transparent ...

2016

We present a detailed low-temperature scanning tunneling microscopy (STM) study of the commensurate charge density wave (CDW) in 1T-TiSe2 in the presence of single atom defects. We find no significant modification of the CDW lattice in single crystals with ...

Amer Physical Soc2015

Monitoring Charge Carrier Dynamics at Atomic Length Scales by STM-induced Luminescence

Christoph Grosse

The goal of this thesis is the combination of the high spatial resolution of scanning tunneling microscopy (STM) with the high temporal resolution of optical spectroscopy, by monitoring the light emitted from the tunnel junction. Two complementary techniqu ...

EPFL2015

A Simple Liquid-Liquid Biphasic System for Hydrogen Peroxide Generation

Hubert Girault, Gunther Wittstock

Although electron transfer reactions at liquid liquid interfaces have been thoroughly studied in the presence of deliberately added potential determining ions or phase transfer catalysts, little is known about these reactions in the absence of the above sp ...

American Chemical Society2015

Covalent coupling via dehalogenation on Ni(111) supported boron nitride and graphene

Klaus Kern, Claudius Morchutt

Polymerization of 1,3,5-tris(4-bromophenyl) benzene via dehalogenation on graphene and hexagonal boron nitride is investigated by scanning tunneling microscopy experiments and density functional theory calculations. This work reveals how the interactions b ...

Royal Soc Chemistry2015

Substitutional or Interstitial Site-Selective Nitrogen Doping in TiO2 Nanostructures

Raffaella Buonsanti, Anna Loiudice

Herein, we report a colloidal wet-chem. approach enabling control on dopant concn. and location in a nanocrystal host lattice. Growth-doping and nucleation-doping, driven by primary and tertiary amines, resp., were identified as predominant doping mechanis ...

2015

In quasi-two-dimensional electron systems of layered transition metal dichalcogenides (TMDs) there is still controversy about the nature of the transitions to charge-density wave (CDW) phases, i.e., whether they are described by a Peierls-type mechanism or ...

Amer Physical Soc2014