Charge-induced nematicity in FeSe

P Massat, D Farina, I Paul, S Karlsson… - Proceedings of the …, 2016 - National Acad Sciences
… The low energy QEP is well reproduced by a damped Lorentzian χ Q E P ″ ( ω ) = A 1 ω Γ
ω 2 + Γ 2 , which allows a clear separation of the two contributions, and the extraction of the …

[HTML][HTML] Terahertz pulse-driven collective mode in the nematic superconducting state of Ba1−xKxFe2As2

R Grasset, K Katsumi, P Massat, HH Wen… - NPJ Quantum …, 2022 - nature.com
We investigate the collective mode response of the iron-based superconductor Ba 1−x K x Fe
2 As 2 using intense terahertz (THz) light. In the superconducting state a THz Kerr signal is …

Field-tuned ferroquadrupolar quantum phase transition in the insulator TmVO4

P Massat, J Wen, JM Jiang, AT Hristov… - Proceedings of the …, 2022 - National Acad Sciences
We report results of low-temperature heat-capacity, magnetocaloric-effect, and neutron-diffraction
measurements of TmVO 4 , an insulator that undergoes a continuous ferroquadrupolar …

Anisotropic nematic fluctuations above the ferroquadrupolar transition in

…, I Vinograd, Z Mei, P Menegasso, D Garcia, P Massat… - Physical Review B, 2021 - APS
Ferroquadrupole order of local atomic orbitals provides a specific realization of electronic
nematic order. TmVO 4 is an insulator and undergoes ferroquadrupolar order associated with …

[HTML][HTML] Second order Zeeman interaction and ferroquadrupolar order in TmVO4

I Vinograd, KR Shirer, P Massat, Z Wang… - npj Quantum …, 2022 - nature.com
TmVO 4 exhibits ferroquadrupolar order of the Tm 4f electronic orbitals at low temperatures,
and is a model system for Ising nematicity. A magnetic field oriented along the c-axis …

Introduction of variability into pantograph–catenary dynamic simulations

O Vo Van, JP Massat, C Laurent… - Vehicle system …, 2014 - Taylor & Francis
Currently, pantograph–catenary dynamic simulations are mainly based on deterministic
approaches. However, the contact force between catenary and pantograph depends on many …

Quality assurance of medicines supplied to low-income and middle-income countries: poor products in shiny boxes?

…, C Pouget, JM Caudron, B Marchal, P Massat… - BMJ Global …, 2017 - gh.bmj.com
Objective In today's context of globalisation of pharmaceutical production and distribution,
international and national procurement agencies play a de facto key role in defining the …

The results of the pantograph–catenary interaction benchmark

…, L Finner, M Ikeda, SY Kwon, JP Massat… - Vehicle System …, 2015 - Taylor & Francis
This paper describes the results of a voluntary benchmark initiative concerning the simulation
of pantograph–catenary interaction, which was proposed and coordinated by Politecnico …

Disorder-induced local strain distribution in Y-substituted TmVO4

Y Li, MP Zic, L Ye, WJ Meese, P Massat, Y Zhu… - arXiv preprint arXiv …, 2024 - arxiv.org
We report an investigation of the effect of substitution of Y for Tm in $Tm_{1-x}Y_xVO4$ via
low-temperature heat capacity measurements, with the yttrium content $x$ varying from $0$ …

[HTML][HTML] Lattice-shifted nematic quantum critical point in FeSe1−xSx

S Chibani, D Farina, P Massat, M Cazayous… - npj Quantum …, 2021 - nature.com
We report the evolution of nematic fluctuations in FeSe 1−x S x single crystals as a function
of Sulfur content x across the nematic quantum critical point (QCP) x c ~ 0.17 via Raman …