G
Gervais Chapuis
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 257
Citations - 7804
Gervais Chapuis is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Crystal structure & Phase transition. The author has an hindex of 33, co-authored 257 publications receiving 7203 citations. Previous affiliations of Gervais Chapuis include École Polytechnique & ETH Zurich.
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Journal ArticleDOI
SUPERFLIP– a computer program for the solution of crystal structures by charge flipping in arbitrary dimensions
Lukáš Palatinus,Gervais Chapuis +1 more
TL;DR: SUPERFLIP is a computer program that can solve crystal structures from diffraction data using the recently developed charge-flipping algorithm and has been successfully compiled and tested on a variety of operating systems.
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Dynamics of the n‐decylammonium chains in the perovskite‐type layer structure compound (C10H21NH3)2CdCl4
R. Kind,S. Ple ko,H. Arend,Robert Blinc,B. ek,Janez Seliger,B. Lo ar,J. Slak,A. Levstik,C. Filipi,V. agar,G. Lahajnar,F. Milia,Gervais Chapuis +13 more
TL;DR: In this paper, the two structural phase transitions in the perovskite layer structure compound (C10H21NH3)2CdCl4 at Tc1=35°C and Tc2=39°C were studied by x-ray diffractional, calorimetric and dielectric measurements, proton NMR spin-lattice relaxation and second moment investigations, 35Cl and 14N quadrupole resonance spectroscopy as well as group theoretical considerations.
Journal Article
Dynamics of the n-decylammonium chains in the perowskite-type Layer structure compound (C10H21NH3)2CdCl4
R. Kind,S. Plesko,H. Arend,Robert Blinc,B. Zeks,Janez Seliger,B. Loz̆ar,J. Slak,A. Levstik,C. Filipič,V. Zugar,G. Lahajnar,F. Milia,Gervais Chapuis +13 more
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2‐cyclooctylamino‐5‐nitropyridine, a new nonlinear optical crystal with orthorhombic symmetry
TL;DR: In this paper, a nonlinear optical crystal with point group symmetry mm2 has been grown by a temperature difference solution growth technique, and its linear and non-linear optical properties have been investigated.
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Phase transitions in disordered lead iron niobate: X-ray and synchrotron radiation diffraction experiments
TL;DR: In this paper, the symmetry of the phases in disordered perovskite has been investigated using X-ray and synchrotron radiation, showing that the compound is a monoclinic ferroelectric at 293 K, undergoes a structural transition to another tetragonal state at about 355 K and finally transforms into a cubic form at approximately 376 K.