Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.
AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.
Assemblies of ferromagnetic cylinders made of Ni with diameters ranging from 35 to 250 nm were produced by electrodeposition in nanoporous membranes. The large coercive fields of Ni nanowires at low temperature could be accounted for by the curling mode of ...
The effect of Nb on the hysteresis parameters of sol-gel Pb-1.1-x/2(Zr0.53Ti0.47)(1-x)NbxO3 (x = 0.0 - 0.05, increments of 0.01) thin films is reported. Two sets of (111) textured films, rapid annealed at 600 and 650 degrees C, were studied. The degree of ...
Experimental Al KL(23)V and Ni LMM Auger and high-resolution valence band XPS spectra of Al3Ni and AlNi3 alloys are presented and compared to the corresponding spectra of pure metals. The spectra are interpreted in terms of the results of the discrete-vari ...
The low-temperature direct and indirect optical transitions in double-barrier Al0.3Ga0.7As/AlAs/GaAs single quantum wells, with AlAs widths of 0, 1, and 2 monolayers, have been studied as a function of pressure. It is shown that intense type-II recombinati ...
A surprising non-cumulative effect of the degradation mechanism (fatigue) of the switched polarization (P-r(s)), was observed in MOCVD and sol-gel prepared Pb(Zr0.47Ti0.53)O-3 (PZT) ferroelectric thin films capacitors (FECAP) with Pt-electrodes. This effec ...
The manifestations of semiconductor depletion and depolarizing effects in switching and fatigue are studied and compared. It is shown that these effects play important but quite different roles in switching. The depletion effect strongly influences the val ...
The size, shape, and polarization orientation of fatigued areas formed during the suppression of the switchable polarization (P-r(s)) (fatigue) in Ft-FZT-Pt ferroelectric capacitors (FECAPs), were observed by means of atomic force microscopy and by imaging ...
