Tunable transmission of quantum Hall edge channels with full degeneracy lifting in split-gated graphene devices

Autor: Katrin Zimmermann, Anna Jordan, Frédéric Gay, Kenji Watanabe, Takashi Taniguchi, Zheng Han, Vincent Bouchiat, Hermann Sellier, Benjamin Sacépé

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)

Quantum point contacts are gate-tunable constrictions allowing for control of charge carrier transmission in 2D electron gases. Here, the authors fabricate a hBN/graphene/hBN van der Waals heterojunction to enable quantum point contact devices in the

Externí odkaz: https://doaj.org/article/738ade80a65046e7a489fe7d0e6e765c

Possible high temperature superconducting transitions in disordered graphite obtained from room temperature deintercalated KC8

Autor: Samar Layek, Miguel Monteverde, Gastón Garbarino, Marie-Aude Méasson, André Sulpice, Nedjma Bendiab, Pierre Rodière, Romain Cazali, Abdellali Hadj-Azzem, Vivian Nassif, Daniel Bourgault, Frédéric Gay, Didier Dufeu, Sébastien Pairis, Jean-Louis Hodeau, Manuel Núñez-Regueiro

Publikováno v: Carbon. 201:667-678

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::28f273827d4a2402c1de8c0936bb393a
https://doi.org/10.1016/j.carbon.2022.09.041

Temporal changes in soil nematode communities in rubber plantations in Ivory Coast in response to logging residue management

Autor: KOUAKOU Kouakou Aymard, Jean Trap, Sidy Diakhate, Yeo Kolo, Thibaut Perron, Frédéric Gay, Alain Brauman

Aims Tree logging in tropical tree plantations results in significant soil disturbances that negatively impact soil biodiversity and soil functioning. Here, we aimed to assess the effects of adding organic matter (OM) to soil after rubber tree loggin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11e67fdd3caa459a6e616a4d8d9b6c5a
https://doi.org/10.21203/rs.3.rs-2684785/v1

Spatial-temporal variations of nitrous oxide emissions in coffee agroforestry systems in Costa Rica

Autor: Abeline Bentzon-Tarp, Diljá Helgadóttir, Karel Van den Meersche, Frédéric Gay, Anders Priemé, Olivier Roupsard, Carolin Mages, Bo Elberling

Publikováno v: Bentzon-Tarp, A, Helgadóttir, D, Van den Meersche, K, Gay, F, Priemé, A, Roupsard, O, Mages, C & Elberling, B 2023, ' Spatial-temporal variations of nitrous oxide emissions in coffee agroforestry systems in Costa Rica ', Agriculture, Ecosystems and Environment, vol. 343, 108257 . https://doi.org/10.1016/j.agee.2022.108257
Agriculture, Ecosystems and Environment

This study investigates spatial-temporal trends in N2O emissions from coffee production systems in Costa Rica with a focus on the effects of nitrogen fertilisation, topography and soil type. This is done by combining (i) multi-year continuous dynamic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8f05a5d5c93bdf0949582e09bd268e9
https://curis.ku.dk/portal/da/publications/spatialtemporal-variations-of-nitrous-oxide-emissions-in-coffee-agroforestry-systems-in-costa-rica(f7e0a015-7c73-4c6a-8d95-3a2c15708239).html

A tunable Fabry–Pérot quantum Hall interferometer in graphene

Autor: Corentin Déprez, Louis Veyrat, Hadrien Vignaud, Goutham Nayak, Kenji Watanabe, Takashi Taniguchi, Frédéric Gay, Hermann Sellier, Benjamin Sacépé

Publikováno v: Nature Nanotechnology
Nature Nanotechnology, Nature Publishing Group, 2021, 16, pp.555-562. ⟨10.1038/s41565-021-00847-x⟩
Nature nanotechnology

Electron interferometry with quantum Hall edge channels holds promise for probing and harnessing exotic exchange statistics of non-Abelian anyons. In semiconductor heterostructures, however, quantum Hall interferometry has proven challenging and ofte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb6bd4c13b410fe88f9be705b4a5409e
https://doi.org/10.1038/s41565-021-00847-x