Electromechanical resonances and field-emission-induced self-oscillations of single crystal diamond needles

Autor: Victor I. Kleshch, Rinat R. Ismagilov, Vsevolod V. Mukhin, Anton S. Orekhov, Philippe Poncharal, Stephen T. Purcell, Alexander N. Obraztsov

Publikováno v: Applied Physics Letters. 122:144101

Due to its outstanding mechanical characteristics, diamond is an ideal material for use in micro- and nano-electromechanical systems. In this paper, we report on the investigation of vibrational properties of singly clamped needlelike diamond microcr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c561831e1ece6fe70e17cbdbd0fe1fff
https://doi.org/10.1063/5.0138141

All field emission models are wrong, $\ldots$ but are any of them useful?

Autor: Anthony Ayari, Pascal Vincent, Sorin Perisanu, Philippe Poncharal, Stephen T. Purcell

Field emission data are often represented on a Fowler--Nordheim plot but a new empirical equation has been recently proposed to better analyze experiments. Such an equation is based on approximations of the Murphy and Good model and predicts that a c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98fc449e5b6f957366e8a019722c41bb
http://arxiv.org/abs/2202.10748

Negative Differential Resistance in Laser-Assisted Field Emission from Si Nanowires

Autor: Anthony Ayari, M. Choueib, Philippe Poncharal, Richard Martel, Costel Sorin Cojocaru, Stephen T. Purcell, P. Vincent, A. Derouet

Publikováno v: 2021 34th International Vacuum Nanoelectronics Conference (IVNC)
2021 34th International Vacuum Nanoelectronics Conference (IVNC), Jul 2021, Lyon, France. pp.1-2, ⟨10.1109/IVNC52431.2021.9600693⟩

Semiconducting nanowires (NWs) are studied in field-emission (FE) for expanding electron gun performances and functionality in terms of stability, brightness and pulsed emission. Here we report on a pronounced double negative differential resistance

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::098527fa1d0abdbd560197cc068d6bac
https://doi.org/10.1109/ivnc52431.2021.9600693

Narrow energy distributions of electrons emitted from clean graphene edges

Autor: S. Perisanu, Philippe Poncharal, Stephen T. Purcell, P. Vincent, R. Diehl, Anthony Ayari, M. Choueib, S. Choubak, Richard Martel

Publikováno v: Physical Review B: Condensed Matter (1978-1997)
Physical Review B: Condensed Matter (1978-1997), American Physical Society, 2020, 102 (3), pp.035416. ⟨10.1103/PhysRevB.102.035416⟩

International audience; This paper presents a study on electron field emission (FE) into ultrahigh vacuum (UHV) from a single, cleaned, graphene sheet where its single sheet nature has been carefully characterized and the emission zones are unambiguo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91616f51fd287e62870735248f0f4f36
https://doi.org/10.1103/physrevb.102.035416

Biaxial Strain Transfer in Supported Graphene

Autor: Laëtitia Marty, Abraao C. Torres-Dias, Dipankar Kalita, Félix Balima, Denis Machon, Philippe Poncharal, Vincent Bouchiat, Colin Bousige, G.S. Pinheiro, Gilles Montagnac, Jimmy Nicolle, Nedjma Bendiab, Alfonso San-Miguel, A. G. Souza Filho

Publikováno v: Nano Letters
Nano Letters, 2017, 17 (1), pp.21-27. ⟨10.1021/acs.nanolett.6b02981⟩
Nano Letters, American Chemical Society, 2017, 17 (1), pp.21-27. ⟨10.1021/acs.nanolett.6b02981⟩

International audience; Understanding the mechanism and limits of strain transfer between supported 2D systems and their substrate is a most needed step toward the development of strain engineering at the nanoscale. This includes applications in stra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b57ec3430a95ec006586551bc0f92eb5
https://hal.science/hal-01611975