Electronic transport in amorphous phase-change materials Jennifer Luckas To cite this version:
... amorphe (amorphous ON state). Dans cet état excité la chaleur engendrée par effet Joule est suffisante pour provoquer la cristallisation (memory switching). Contrairement à la phase amorphe la phase cristalline présente une caractéristique tension courant linéaire (voir figure 3a). Un autre phénomèn ...
... amorphe (amorphous ON state). Dans cet état excité la chaleur engendrée par effet Joule est suffisante pour provoquer la cristallisation (memory switching). Contrairement à la phase amorphe la phase cristalline présente une caractéristique tension courant linéaire (voir figure 3a). Un autre phénomèn ...
Mass-producible and efficient optical antennas
... field enhancements of two arch-dipole antenna modes are higher than the normal dipole antenna with the same gap spacing since the Q matching condition is achieved for the archdipole antenna by tuning the arch height. Here, we have selected the higher frequency mode (the arch current in the opposite ...
... field enhancements of two arch-dipole antenna modes are higher than the normal dipole antenna with the same gap spacing since the Q matching condition is achieved for the archdipole antenna by tuning the arch height. Here, we have selected the higher frequency mode (the arch current in the opposite ...
a0041_Spectral Analysis and Classification of Herbig A
... of the features they used, such as He i kk4922, 5016 and Na i kk5890, 5896, can be affected by emission or anomalous absorption (xx 4 and 5). Finkenzeller (1985) used a scheme based on nine spectral indices in the range 3500–5000 Å, but their sample consists of only a few stars. Hillenbrand (1995) ...
... of the features they used, such as He i kk4922, 5016 and Na i kk5890, 5896, can be affected by emission or anomalous absorption (xx 4 and 5). Finkenzeller (1985) used a scheme based on nine spectral indices in the range 3500–5000 Å, but their sample consists of only a few stars. Hillenbrand (1995) ...
... optical frequencies, the first order resonance does not occur at a length equal exactly half of the free space wavelength, but at an effective length a factor two to five shorter [8]. Therefore, for materials commonly used in optics like silver, gold or aluminium, typical dimensions of resonant stru ...
Measuring Everything You`ve Ever Wanted to Know About an
... very robust and fast, usually converging in < 0.1 second,[2] unless the pulse is very complex. Indeed, FROG has become an effective and versatile way to measure ultrashort laser pulses, whether a 20 fs UV pulse or an oddly shaped IR pulse from a free-electron laser.[2] And FROG now routinely measure ...
... very robust and fast, usually converging in < 0.1 second,[2] unless the pulse is very complex. Indeed, FROG has become an effective and versatile way to measure ultrashort laser pulses, whether a 20 fs UV pulse or an oddly shaped IR pulse from a free-electron laser.[2] And FROG now routinely measure ...
Topics: • Electric Potential of continuous charge distributions
... Two metal spheres are attached to a wire with a switch in it. Sphere 1 is larger than sphere 2 and is given a positive charge; sphere 2 is neutral. After the switch is closed, which sphere has greater electric field on its surface? ...
... Two metal spheres are attached to a wire with a switch in it. Sphere 1 is larger than sphere 2 and is given a positive charge; sphere 2 is neutral. After the switch is closed, which sphere has greater electric field on its surface? ...
Optoelectronic Devices Based on Atomically Thin Transition Metal
... The exciton binding energies ∆Eb of TMDs have been determined by several groups using different experimental and theoretical techniques. [14,16,18,19,22–24] The binding energy decreases with thickness due to stronger screening and also depends on strain and the dielectric environment [25]. For examp ...
... The exciton binding energies ∆Eb of TMDs have been determined by several groups using different experimental and theoretical techniques. [14,16,18,19,22–24] The binding energy decreases with thickness due to stronger screening and also depends on strain and the dielectric environment [25]. For examp ...
ABSTRACT NOVEL APPLICATIONS OF HIGH INTENSITY FEMTOSECOND LASERS TO PARTICLE ACCELERATION
... should allow an acceleration gradient larger than 80 MV/cm. A modest power of only 30 GW would still allow acceleration gradients in excess of 10 MV/cm. Broadband chirped-pulse amplification (CPA) in Ti:sapphire revolutionized nonlinear optics in the 90’s, bringing intense optical pulses out of lar ...
... should allow an acceleration gradient larger than 80 MV/cm. A modest power of only 30 GW would still allow acceleration gradients in excess of 10 MV/cm. Broadband chirped-pulse amplification (CPA) in Ti:sapphire revolutionized nonlinear optics in the 90’s, bringing intense optical pulses out of lar ...
S282_2 Introduction to active galaxies
... Universe. Whether every galaxy goes through an active phase in its lifetime, or whether active galaxies are a separate class of object is not clear. We have been aware of these objects only since the 1940s, and the galaxies have been around for at least 1010 years. So the fact that we observe a smal ...
... Universe. Whether every galaxy goes through an active phase in its lifetime, or whether active galaxies are a separate class of object is not clear. We have been aware of these objects only since the 1940s, and the galaxies have been around for at least 1010 years. So the fact that we observe a smal ...
CHARACTERIZING DUST ATTENUATION IN LOCAL STAR FORMING GALAXIES: UV AND... REDDENING ABSTRACT The dust attenuation for a sample of ∼10000 local (z ....
... of sources that can be cross-matched to the Sloan Digital Sky Survey (SDSS) data release 7 (DR7; Abazajian et al. 2009) sources and have available SDSS spectroscopy, as the latter is required to determine the Balmer decrement. These cross-matched cases are determined using the Mikulski Archive for S ...
... of sources that can be cross-matched to the Sloan Digital Sky Survey (SDSS) data release 7 (DR7; Abazajian et al. 2009) sources and have available SDSS spectroscopy, as the latter is required to determine the Balmer decrement. These cross-matched cases are determined using the Mikulski Archive for S ...
Department of Physics and Astronomy Magnetic and Magneto
... both SrTiO3 and sapphire substrates, exhibit a high Curie temperature (Tc) of 340 K. The magnetic circular dichroism (MCD) intensity follows the magnetisation for LSMO on sapphire; however, the measurements on SrTiO3 were dominated by the birefringence and magneto-optical properties of the substrate ...
... both SrTiO3 and sapphire substrates, exhibit a high Curie temperature (Tc) of 340 K. The magnetic circular dichroism (MCD) intensity follows the magnetisation for LSMO on sapphire; however, the measurements on SrTiO3 were dominated by the birefringence and magneto-optical properties of the substrate ...
Circular dichroism
Circular dichroism (CD) is dichroism involving circularly polarized light, i.e., the differential absorption of left- and right-handed light. Left-hand circular (LHC) and right-hand circular (RHC) polarized light represent two possible spin angular momentum states for a photon, and so circular dichroism is also referred to as dichroism for spin angular momentum. This phenomenon was discovered by Jean-Baptiste Biot, Augustin Fresnel, and Aimé Cotton in the first half of the 19th century. It is exhibited in the absorption bands of optically active chiral molecules. CD spectroscopy has a wide range of applications in many different fields. Most notably, UV CD is used to investigate the secondary structure of proteins. UV/Vis CD is used to investigate charge-transfer transitions. Near-infrared CD is used to investigate geometric and electronic structure by probing metal d→d transitions. Vibrational circular dichroism, which uses light from the infrared energy region, is used for structural studies of small organic molecules, and most recently proteins and DNA.