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Concept

Conditions normales de température et de pression

Publications associées (30)

Long decay length of magnon-polarons in BiFeO3/La0.67Sr0.33MnO3 heterostructures

Jean-Philippe Ansermet, Dirk Grundler, Peng Gao, Haiming Yu, Mohammad Hamdi

Magnons can transfer information in metals and insulators without Joule heating, and therefore are promising for low-power computation. The on-chip magnonics however suffers from high losses due to limited magnon decay length. In metallic thin films, it is ...

Nature Research2021

Analysis of the effects of thermal anchors on the reduction of the parasitic load to the EU-DEMO TF coils

Kamil Sedlák

The design of the superconducting magnet system of the EU-DEMO tokamak reached the end of the preconceptual design phase, and a careful investigation of the parasitic heat load from the room-temperature environment is needed. A possible route for the paras ...

2021

Towards a wearable sensor for spectrally-resolved personal light monitoring

Marilyne Andersen, Giorgia Chinazzo, Forrest Simon Webler

Given the large impact that the spectrum and intensity of light can have on people's health and well-being, it is of fundamental importance to understand the properties of light received under normal living conditions. Historically, as research into the bi ...

2021

Planar hydrodynamic traps and buried channels for bead and cell trapping and releasing

Philippe Renaud, Arnaud Bertsch, Daniel Migliozzi, Jonathan Bastien Cottet, Clémentine Sophie Sarah Lipp

We present a novel concept for the controlled trapping and releasing of beads and cells in a PDMS microfluidic channel without obstacles present around the particle or in the channel. The trapping principle relies on a two-level microfluidic configuration: ...

ROYAL SOC CHEMISTRY2021

Atomistic origins of the limited phase stability of Cs+-rich FAxCs(1-x)PbI3 mixtures

Michael Graetzel, Ursula Röthlisberger, David Lyndon Emsley, Dominik Józef Kubicki, Simone Meloni, Aditya Mishra, Ariadni Boziki

Mixed cation perovskites, [HC(NH2)2]xCs(1-x)PbI3, (FAxCs(1-x)PbI3) with x=0.8 achieve high solar cell power conversion efficiencies (PCEs) while exhibiting long-term stability under ambient conditions. In this work, we perform density functional theory (DF ...

2020

Asymmetric Total Synthesis of (-)-Arborisidine and (-)-19-epi-Arborisidine Enabled by a Catalytic Enantioselective Pictet-Spengler Reaction

Jieping Zhu, Qian Wang, Rémi Julien Sylvain Andres

A five-step total synthesis of arborisidine, a caged pentacyclic monoterpene indole alkaloid, has been accomplished in both racemic and enantioselective manners. The synthesis features the following three key steps: (a) a regioselective Pictet-Spengler rea ...

AMER CHEMICAL SOC2020

Record thermopower found in an IrMn-based spintronic stack

Jean-Philippe Ansermet, Peng Gao, Haiming Yu, Junfeng Hu, Sa Tu

The Seebeck effect converts thermal gradients into electricity. As an approach to power technologies in the current Internet-of-Things era, on-chip energy harvesting is highly attractive, and to be effective, demands thin film materials with large Seebeck ...

Nature Research2020

Nanocapillary confinement of imidazolium based ionic liquids

Aleksandra Radenovic, Sanjin Marion, Sebastian James Davis

Room temperature ionic liquids are salts which are molten at or around room temperature without any added solvent or solution. In bulk they exhibit glass like dependence of conductivity with temperature as well as coupling of structural and transport prope ...

2020

Multi-physical characterization of cellular ceramics for high-temperature applications

Ehsan Rezaei

The use of cellular ceramics in enhancing the performance of a high-temperature latent heat thermal energy storage unit was investigated. A detailed design methodology is presented, which consists of a combined analytical-numerical analysis followed by a m ...

EPFL2020

Revisiting the concept of extents for chemical reaction systems using an enthalpy balance

Dominique Bonvin, Diogo Filipe Mateus Rodrigues

For the investigation of complex reaction systems, it has been proposed to decouple the various rate processes using a linear time-invariant transformation that is constructed from knowledge of stoichiometry, reaction enthalpies, inlet compositions and tem ...

PERGAMON-ELSEVIER SCIENCE LTD2020