نتایج جستجو برای: magnetooptical effect
تعداد نتایج: 1641732 فیلتر نتایج به سال:
In two-dimensional topological insulators, such as inverted HgTe/CdTe quantum wells, helical quantum spin Hall (QSH) states persist even at finite magnetic fields below a critical magnetic field Bc, above which only quantum Hall (QH) states can be found. Using linear-response theory, we theoretically investigate the magnetooptical properties of inverted HgTe/CdTe quantum wells, both for infinit...
The complex behavior of horizontally polarized surface shear waves in magnetoelectric acoustic wave based magnetic field sensor devices is revealed by time-resolved magnetooptical microscopy with picosecond temporal and submicron spatial resolution. imaging the propagating composites realized through functional soft-magnetic layer coupled magnetoelastic interactions. Partial reflections, front ...
We present the optimization of a new material structure used as transducer in a MagnetoOptical Surface Plasmon Resonance (MOSPR) biosensor. The MOSPR sensor is a modification of the standard Surface Plasmon Resonance (SPR) biosensor, which arises from the introduction of a ferromagnetic metal layer with Magneto-Optical (MO) activity together with the usual gold layer of SPR biosensors. Such com...
We have investigated the correlation between nanoscale surface ripple patterns and the magnetic texture of polycrystalline iron and nickel thin films. The ripple patterns were created by ion beam sputter erosion of films evaporated on Si substrates with 5 keV Xe ions under grazing incidence and fluences between 1015 and 1017 cm−2. The as-deposited films with an rms roughness of about 1 nm are m...
We present our the construction of an atom interferometer for inertial sensing in microgravity, as part of the I.C.E. (Interférométrie Cohérente pour l’Espace) collaboration. On-board laser systems have been developed based on fibre-optic components, which are insensitive to mechanical vibrations and acoustic noise, have sub-MHz linewidth, and remain frequency stabilised for weeks at a time. A ...
The spin-polarization at the V~001! surface has been studied by using different local @local spin-density approximation ~LSDA!# and semilocal @generalized gradient approximation ~GGA#! approximations to the exchange-correlation potential of DFT within two ab initio methods: the all-electron tight-binding linear muffin-tin orbital atomic-sphere approximation and the pseudopotential linear combin...
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