C
Christophe Brun
Researcher at Paris-Sorbonne University
Publications - 48
Citations - 1958
Christophe Brun is an academic researcher from Paris-Sorbonne University. The author has contributed to research in topics: Scanning tunneling spectroscopy & Superconductivity. The author has an hindex of 22, co-authored 45 publications receiving 1624 citations. Previous affiliations of Christophe Brun include Pierre-and-Marie-Curie University & Centre national de la recherche scientifique.
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Journal ArticleDOI
Two-dimensional topological superconductivity in Pb/Co/Si(111)
Gerbold Menard,Sébastien Guissart,Christophe Brun,Raphaël T. Leriche,Mircea Trif,François Debontridder,Dominique Demaille,Dimitri Roditchev,Dimitri Roditchev,Pascal Simon,Tristan Cren +10 more
TL;DR: The measured dispersive in-gap states are interpreted as a spatial topological transition with a gap closure and could in principle be generalized to a large variety of heterostructures combining a Rashba superconductor with a magnetic layer in order to be used as a platform for engineering topological quantum phases.
Journal ArticleDOI
Coherent long-range magnetic bound states in a superconductor
Gerbold Menard,Sébastien Guissart,Christophe Brun,Stéphane Pons,Stéphane Pons,Vasily S. Stolyarov,Vasily S. Stolyarov,François Debontridder,Matthieu V. Leclerc,Etienne Janod,Laurent Cario,Dimitri Roditchev,Dimitri Roditchev,Pascal Simon,Tristan Cren +14 more
TL;DR: Magnetic atoms embedded in a niobium selenide superconductor were shown to give rise to a long-range coherent bound state extending tens of nanometres.
Journal ArticleDOI
Remarkable effects of disorder on superconductivity of single atomic layers of lead on silicon
Christophe Brun,Christophe Brun,T. Cren,T. Cren,V. Cherkez,V. Cherkez,François Debontridder,François Debontridder,Stéphane Pons,Stéphane Pons,D. A. Fokin,D. A. Fokin,D. A. Fokin,Michael C. Tringides,S. I. Bozhko,Lev Ioffe,Lev Ioffe,Lev Ioffe,Boris L. Altshuler,Dimitri Roditchev,Dimitri Roditchev +20 more
TL;DR: In this article, the effect of structural disorder on the local spectral response of crystalline superconducting monolayers of lead on silicon was studied, and it was shown that the precise atomic organization determines the robustness of the superconding order with respect to structural defects, such as single atomic steps.
Journal ArticleDOI
Two-dimensional topological superconductivity in Pb/Co/Si(111)
Gerbold Menard,Sébastien Guissart,Christophe Brun,Mircea Trif,François Debontridder,Raphël T. Leriche,Dominique Demaille,Dimitri Roditchev,Pascal Simon,Tristan Cren +9 more
TL;DR: In this article, the dispersive in-gap states surrounding topological superconducting domains made of a single atomic layer of Pb covering magnetic islands of Co/Si(111) were observed.
Journal ArticleDOI
Direct observation of Josephson vortex cores
Dimitri Roditchev,Dimitri Roditchev,Christophe Brun,Lise Serrier-Garcia,Juan Carlos Cuevas,Vagner Henrique Loiola Bessa,Milorad V. Milošević,Milorad V. Milošević,François Debontridder,Vasily S. Stolyarov,Tristan Cren +10 more
TL;DR: In this article, superconducting correlations inside proximity Josephson junctions are mapped using scanning tunnelling microscopy, and it is shown that such Josephson vortices have real cores, in which the proximity gap is locally suppressed and the normal state recovered.