Publications

Affichage de 8671 à 8680 sur 16055


  • ART

Anisotropic excitonic effects in the energy loss function of hexagonal boron nitride

S. Galambosi, L. Wirtz, J.A. Soininen, J. Serrano, A. Marini, K. Watanabe, T. Taniguchi, S. Huotari, A. Rubio, K. Hamalainen

The anisotropy of the valence energy-loss function of hexagonal boron nitride (hBN) is shown to be largely enhanced by the highly inhomogeneous character of the excitonic states. The energy loss with momentum transfer parallel to the BN layers is dominated by strongly bound, quasi-two-dimensional…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83 (8), pp.081413. ⟨10.1103/PhysRevB.83.081413⟩. ⟨hal-00579067⟩

  • COMM

Scanning gate transconductance microscopy and spectroscopy of a mesoscopic ring

B. Hackens, F. Martins, S. Faniel, V. Bayot, M. Pala, H. Sellier, S. Huant, L. Desplanque, X. Wallart

American Physical Society March Meeting, APS March Meeting 2011, 2011, Dallas, TX, United States. ⟨hal-00579035⟩

  • COMM

Electromagnetism in multicoaxial negative-index metamaterial cables

Bahram Djafari-Rouhani, M. Kushwaha

American Physical Society March Meeting, APS March Meeting 2011, 2011, Dallas, TX, United States. ⟨hal-00579034⟩

  • ART

A 45° silicon mirror for acoustic propagation parallel to the plane of the substrate

S. Wang, Julien Carlier, Pierre Campistron, Wei-Jiang Xu, Dorothée Debavelaere-Callens, Bertrand Nongaillard, Assane Ndieguene, X. Zhao

The interest of a thin silicon oxide layer on a {110} silicon crystal planes used as 45° acoustical mirrors for reflection has been demonstrated. Passive mirror-like planes (groove depth ∼ 150 μm) were fabricated by wet chemical etching of (100) silicon. High frequency acoustical longitudinal waves…

Journal of Physics: Conference Series, 2011, 269, pp.012009-1-10. ⟨10.1088/1742-6596/269/1/012009⟩. ⟨hal-00572671⟩

  • COMM

THz emission induced by sub-threshold instability optical excited in nanometer-length field-effect transistors

P. Nouvel, J. Torres, H. Marinchio, A. Penot, C. Palermo, L. Varani, P. Shiktorov, E. Starikov, V. Gruzinskis, F. Teppe, Yannick Roelens, A. Shchepetov, S. Bollaert

20th European Workshop on Heterostructure Technology, HeTech 2011, 2011, Villeneuve d'Ascq, France. pp.1-2. ⟨hal-00799965⟩