Publications

• Article dans une revue

Epitaxy of MgO magnetic tunnel barriers on epitaxial graphene

Florian Godel, Emmanuelle Pichonat, Dominique Vignaud, Hicham Majjad, Dominik Metten, Yves Henry, Stéphane Berciaud, Jean-Francois Dayen, David Halley

Nanotechnology, 2013, 24 (47), pp.475708. ⟨10.1088/0957-4484/24/47/475708⟩. ⟨hal-00881293⟩

• Article dans une revue

Highly efficient terahertz detection by optical mixing in a GaAs photoconductor

Emilien Peytavit, F. Pavanello, Guillaume Ducournau, Jean-Francois Lampin

Applied Physics Letters, 2013, 103, 201107, 4 p. ⟨10.1063/1.4830360⟩. ⟨hal-00903765⟩

• Article dans une revue

Tight-binding calculations of the optical response of optimally P-doped Si nanocrystals : a model for localized surface plasmon resonance

Xiaodong Pi, C. Delerue

We present tight-binding calculations in the random-phase approximation of the optical response of Silicon nanocrystals (Si NCs) ideally doped with large concentrations of phosphorus (P) atoms. A collective response of P-induced electrons is demonstrated, leading to localized surface plasmon…

Physical Review Letters, 2013, 111, pp.177402. ⟨10.1103/PhysRevLett.111.177402⟩. ⟨hal-00877649⟩

• Article dans une revue

Terahertz detection in zero-bias InAs self-switching diodes at room temperature

A. Westlund, P. Sangare, Guillaume Ducournau, P.A. Nilsson, Christophe Gaquière, L. Desplanque, X. Wallart, J. Grahn

Applied Physics Letters, 2013, 103, pp.133504-1-4. ⟨10.1063/1.4821949⟩. ⟨hal-00872026⟩

• Article dans une revue

Band offsets at zincblende-wurtzite GaAs nanowire sidewall surfaces

Pierre Capiod, Tao Xu, Jean-Philippe Nys, Maxime Berthe, Gilles Patriarche, Liverios Lymperakis, J. Neugebauer, Philippe Caroff, Rafal E Dunin-Borkowski, Philipp Ebert, B. Grandidier

Applied Physics Letters, 2013, 103, pp.122104-1-4. ⟨10.1063/1.4821293⟩. ⟨hal-00871957⟩

• Article dans une revue

Frequency and angular bandwidth of acousto-optic deflectors with ultrasonic walk-off

Jean-Claude Kastelik, Samuel Dupont, Konstantin B. Yushkov, Joseph Gazalet

Ultrasonics, 2013, 53, pp.219-224. ⟨10.1016/j.ultras.2012.06.003⟩. ⟨hal-00796423⟩

• Article dans une revue

Design guidelines for releasing silicon nanowire arrays by liquid and vapor phase hydrofluoric acid

Vikram Passi, Emmanuel Dubois, Aurélie Lecestre, A. Sanchez-Linde, B. Du Bois, J.P. Raskin

Silicon nanowires of various geometries are fabricated using top-down approach starting from silicon-on-insulator substrate. Arrays of nanowires presenting widths from 25 up to 100 nm regularly spaced by 50 nm up to 1 μm are patterned and released. A comparison of various release methodologies,…

Microelectronic Engineering, 2013, 103, pp.57-65. ⟨10.1016/j.mee.2012.09.002⟩. ⟨hal-00795975⟩

• Communication dans un congrès

A 1 GHz SAW oscillator on epitaxial GaN/Si substrate : toward co-integrated frequency sources

M. Faucher, G. Martin, J.M. Friedt, S. Ballandras

GaN is an attractive material for the fabrication of various integrated devices combining several physical effects (semi-conductors, piezoelectric and optic parts, etc.). This work is dedicated to the investigation of GaN for the fabrication of surface acoustic wave oscillators. The first…

6th Joint IEEE International Frequency Control Symposium/European Frequency and Time Forum, IFCS-EFTF 2013, 2013, Prague, Czech Republic. paper IFCS-EFTF1-B2-5, 21-24, ⟨10.1109/EFTF-IFC.2013.6702231⟩. ⟨hal-00944027⟩

• Article dans une revue

In situ high-temperature characterization of AlN-based surface acoustic wave devices

T. Aubert, Jochen Bardong, Ouarda Legrani, O. Elmazria, M. Badreddine Assouar, Gudrun Bruckner, Abdelkrim Talbi

We report on in situ electrical measurements of surface acoustic wave delay lines based on AlN/sapphire structure and iridium interdigital transducers between 20 °C and 1050 °C under vacuum conditions. The devices show a great potential for temperature sensing applications. Burnout is only observed…

Journal of Applied Physics, 2013, 114 (1), pp.014505. ⟨10.1063/1.4812565⟩. ⟨hal-00871910⟩

• Article dans une revue

Multiple exciton generation and ultrafast exciton dynamics in HgTe colloidal quantum dots

Ali Al-Otaify, Stephen V. Kershaw, Shuchi Gupta, Andrey L. Rogach, Guy Allan, Christophe Delerue, David J. Binks

The investigation of sub-nanosecond exciton dynamics in HgTe colloidal quantum dots using ultrafast transient absorption spectroscopy is reported. The transmittance change spectrum acquired immediately after pumping is dominated by a bleach blue-shifted by ∼200–300 nm from the photoluminescent…

Physical Chemistry Chemical Physics, 2013, 15, pp.16864-16873. ⟨10.1039/C3CP52574K⟩. ⟨hal-00871970⟩