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Communication dans un congrès

Phoxonic Crystals : A review

Sarah Benchabane, Said Sadat-Saleh, Maria-Pilar Bernal, Jean-Charles Beugnot, Vincent Laude, Yan Pennec, Bahram Djafari-Rouhani, Nikos Papanikolaou, Alejandro Martinez

Periodically structured materials exhibiting simultaneous photonic and phononic band gaps offer unprecedented ways to tailor photon-phonon interactions. A review of the works reported on these materials, sometimes termed "phoxonic crystals", is presented before highlighting theoretical…

Phononics 2011, May 2011, Sante Fe, United States. pp.84. ⟨hal-00639453⟩

Article dans une revue

An analytical model for the intercell interference power in the downlink of wireless cellular networks

B. Pijcke, Marie Zwingelstein, Marc G. Gazalet, M Gharbi, Patrick Corlay

In this paper, we propose a methodology for estimating the statistics of the intercell interference power in the downlink of a multicellular network. We first establish an analytical expression for the probability law of the interference power when only Rayleigh multipath fading is considered. Next…

EURASIP Journal on Wireless Communications and Networking, 2011, 2011, pp.95. ⟨10.1186/1687-1499-2011-95⟩. ⟨hal-00783406⟩

Article dans une revue

Statistical analysis of multipath clustering in an indoor office environment

Emmeric Tanghe, Wout Joseph, M. Lienard, Abdelmottaleb Nasr, Paul Christian Stefanut, Luc Martens, Pierre Degauque

A parametric directional-based MIMO channel model is presented which takes multipath clustering into account. The directional propagation path parameters include azimuth of arrival (AoA), azimuth of departure (AoD), delay, and power. MIMO measurements are carried out in an indoor office environment…

EURASIP Journal on Wireless Communications and Networking, 2011, 2011, pp.263134. ⟨10.1155/2011/263134⟩. ⟨hal-00591334⟩

Communication dans un congrès

Phase change memory as synapse for ultra-dense neuromorphic systems: application to complex visual pattern extraction

Manan Suri, Olivier Bichler, Damien Querlioz, Olga Cueto, Luca Perniola, Véronique Sousa, Dominique Vuillaume, Christian Gamrat, Barbara Desalvo

We demonstrate a unique energy efficient methodology to use Phase Change Memory (PCM) as synapse in ultra-dense large scale neuromorphic systems. PCM devices with different chalcogenide materials were characterized to demonstrate synaptic behavior. Multi-physical simulations were used to interpret…

IEEE International Electron Devices Meeting (IEDM 2011), Dec 2011, Washington, DC, United States. ⟨10.1109/IEDM.2011.6131488⟩. ⟨hal-00799997⟩

Article dans une revue

Low temperature tunneling current enhancement in silicide/Si Schottky contacts with nanoscale barrier width

N. Reckinger, Xing Tang, Emmanuel Dubois, G. Larrieu, D. Flandre, J.P. Raskin, A. Afzalian

The low temperature electrical behavior of adjacent silicide/Si Schottky contacts with or without dopant segregation is investigated. The electrical characteristics are very well modeled by thermionic-field emission for nonsegregated contacts separated by micrometer-sized gaps. Still, an excess of…

Applied Physics Letters, 2011, 98 (11), pp.1121021. ⟨10.1063/1.3567546⟩. ⟨hal-00579075⟩

Article dans une revue

Very low effective Schottky barrier height for erbium disilicide contacts on n-Si through arsenic segregation

N. Reckinger, C. Poleunis, Emmanuel Dubois, C.A. Dutu, X.H. Tang, A. Delcorte, J.P. Raskin

The segregation of As+ ions implanted into thin Er films deposited on n-Si substrates is studied after ErSi2−x formation. The same lowering of the effective Schottky barrier height (SBH) below 0.12 eV is obtained at moderate annealing temperatures, regardless of the redistribution of As dopants at…

Applied Physics Letters, 2011, 99 (1), pp.012110. ⟨10.1063/1.3608159⟩. ⟨hal-00639859⟩

Article dans une revue

Energy-band engineering for improved charge retention in fully self-aligned double floating-gate single-electron memories

Xiaohui Tang, Christophe Krzeminski, Aurelien Lecavelier Des Etangs-Levallois, Zhenkun Chen, Emmanuel Dubois, Erich Kasper, Alim Karmous, Nicolas Reckinger, Denis Flandre, Laurent A. Francis, Jean-Pierre Collinge, Jean-Pierre Raskin

We present a new fully self-aligned single-electron memory with a single pair of nano floating gates, made of different materials (Si and Ge). The energy barrier that prevents stored charge leakage is induced not only by quantum effects but also by the conduction-band offset that arises between Ge…

Nano Letters, 2011, 11, pp.4520-4526. ⟨10.1021/nl202434k⟩. ⟨hal-00640212v2⟩