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Extracting the hysteresis loops of magnetic interfaces from optical second-harmonic intensity measurements
(2007)
Surface- and interface-sensitive optical techniques, such as optical second-harmonic generation (SHG), allow the buried interfacial structure of centrosymmetric materials to be explored through thin capping layers, and ...
Bi-substitution-induced magnetic moment distribution in spinel BixCo2-xMnO4 multiferroic
(2009)
We report the near-edge x-ray absorption spectroscopy (NEXAFS) at the Co/Mn L3,2 edge and oxygen K edge of the well-characterized Bi-substituted Co2MnO4 multiferroic samples. The evolution of peak features in NEXAFS spectra ...
Acceptance angle influence on optimum incident spot size for high-finesse microcavity two-photon absorption photodetectors
(2009)
The influence of the limited acceptance angle of a
high-finesse microcavity two-photon absorption photodetector on
its response has been investigated. It is shown that the limited
acceptance angle of the microcavity ...
Origin of hysteresis in resistive switching in magnetite is Joule heating
(2009)
In many transition-metal oxides the electrical resistance is observed to undergo dramatic changes induced by large biases. In magnetite, Fe3O4, below the Verwey temperature, an electric-field-driven transition to a state ...
Simulating STM transport in alkanes from first principles
(2009)
Simulations of scanning tunneling microscopy
STM
measurements for molecules on surfaces are tradi-
tionally based on a perturbative approach, most typically employing the Tersoff-Hamann method. This assumes
that the ...
Preparation and Optical Limiting Properties of Multiwalled Carbon Nanotubes with ð-Conjugated Metal-Free Phthalocyanine Moieties
(2009)
Phthalocyanines (Pcs) usually exhibit stronger optical limiting response that can be used to protect human eyes, optical elements, and sensors from intense laser pulses. New unsymmetrically substituted metal-free ...
Hybrid density functional theory applied to magnetite: Crystal structure, charge order, and phonons
(2009)
The electronic structure and equilibrium structure of magnetite (Fe3O4) in the high temperature cubic Fd3¯m and low temperature monoclinic P2/c unit cells have been computed using the Perdew-Wang generalized gradient ...
Carbon nanotubes and nanotube composites for nonlinear optical devices
(2009)
Carbon nanotubes possess not only outstanding mechanical, electrical and thermal properties but also unique nonlinear optical properties. In this Feature Article, we review the recent developments of the carbon nanotube ...
Hybrid organic-inorganic spin-on-glass CuCl films for optoelectronic applications
(2009)
Cuprous halides are among the most studied inorganic materials for excitonic related linear/non-linear optical processes due to their large excitonic binding energies (~190 and 108 meV for CuCl and CuBr, respectively). In ...
Inverted magnetoresistance in dual spin valve structures with a synthetic antiferromagnetic free layer
(2009)
We report an oscillation of the giant magnetoresistance GMR ratio as a function of Ru layer
thickness in the CoFe/Cu/ CoFe/Ru/CoFe SAF/Cu/CoFe/IrMn dual spin valve SV structure. A
normal GMR with a positive sign is ...