Concept
Electronic counter-countermeasure
Publications associées (42)
Nanostructure Symmetry: Relevance for Physics and Computing
Marc-André Dupertuis, Daniel Oberli, Benjamin Gallinet, Sascha Dalessi
We review the research done in recent years in our group on the effects of nanostructure symmetry, and outline its relevance both for nanostructure physics and for computations of their electronic and optical properties. The exemples of C3v and C2v quantum ...
Amer Inst Physics2014Anti-spoofing in action: joint operation with a verification system
Sébastien Marcel, André Anjos, Ivana Chingovska
Besides the recognition task, today's biometric systems need to cope with additional problem: spoofing attacks. Up to date, academic research considers spoofing as a binary classification problem: systems are trained to discriminate between real accesses a ...
Idiap2013Anti-spoofing in action: joint operation with a verification system
Sébastien Marcel, André Anjos, Ivana Chingovska
Besides the recognition task, today's biometric systems need to cope with additional problem: spoofing attacks. Up to date, academic research considers spoofing as a binary classification problem: systems are trained to discriminate between real accesses a ...
2013Electronic and magnetic properties of bulk Cr tips for scanning tunneling spectroscopy
The electronic and magnetic properties of bulk Cr tips for scanning tunneling microscopy have been investigated by means of density functional theory (DFT) calculations and scanning tunneling spectroscopy (STS) measurements. Spin-resolved densities of stat ...
American Physical Society2013Electronic, vibrational, and transport properties of pnictogen-substituted ternary skutterudites
Nicola Marzari, Boris Kozinsky
First principles calculations are used to investigate electronic band structure and vibrational spectra of pnictogen-substituted ternary skutterudites. We compare the results with the prototypical binary composition CoSb3 to identify the effects of substit ...
2012Thermodynamics of electromechanically coupled mixed ionic-electronic conductors: Deformation potential, Vegard strains, and flexoelectric effect
Strong coupling among external voltage, electrochemical potentials, concentrations of electronic and ionic species, and strains is a ubiquitous feature of solid statemixed ionic-electronic conductors (MIECs), the materials of choice in devices ranging from ...
2011Transition-metal dioxides: A case for the intersite term in Hubbard-model functionals
Triatomic transition-metal oxides in the "inserted dioxide" (O-M-O) structure represent one of the simplest examples of systems that undergo qualitative geometrical changes via subtle electronic-structure modulation. We consider here three transition-metal ...
2011Properties of copper (fluoro-)phthalocyanine layers deposited on epitaxial graphene
Efthimios Kaxiras, Sheng Meng, Jun Ren
We investigate the atomic structure and electronic properties of monolayers of copper phthalocyanines (CuPc) deposited on epitaxial graphene substrate. We focus in particular on hexadecafluorophthalocyanine (F16CuPc), using both theoretical and experimenta ...
American Institute of Physics2011Linear and nonlinear susceptibilities from diffusion quantum Monte Carlo: Application to periodic hydrogen chains
We calculate the linear and nonlinear susceptibilities of periodic longitudinal chains of hydrogen dimers with different bond-length alternations using a diffusion quantum Monte Carlo approach. These quantities are derived from the changes in electronic po ...
2009Integrated Hall Microsystem with Current Re-Use
Radivoje Popovic, Pavel Kejik, Predrag Drljaca
A new architecture of a Hall microsystem for low-power applications is presented. The innovation in this paper lies in the re-use of the electric current for biasing of several parts in the microsystem permitting substantial reduction of the current consum ...
American Scientific Publishers2007