High-order diffraction and nanolayer electrostatic modification in Cu-doped (K_05Na_05)_02(Sr_075Ba_025)_09Nb_2O_6 crystals

Electron Paramagnetic Resonance of Cu Doped Na2HAs04-7H20 Single Crystals

The electron paramagnetic resonance spectra of Cu doped Na 2 HAs0 4 -7H 2 0 single crystals were studied at room temperature. The results indicate the substitutional entrance of Cu in two magnetically inequivalent Na sites. Charge compensation is supposed to be fulfilled by proton vacancies. The spin Hamiltonian parameters were determined. The ground state for Cu seems to indicate the dominance...

Electronic structure and correlations in pristine and potassium doped Cu-Phthalocyanine molecular crystals

Electric field control of diffraction and noise in dye-doped liquid crystals

We present results on permanent gratings in highly dye-doped liquid crystal cells without polymer coatings of the cells' surfaces. The surface-mediated gratings remain in cells for months without degradation of their quality. The peak diffraction efficiency can be controlled, enhanced or decreased, by applying low voltage AC field. At low frequencies, below 1 Hz, the diffracted signal can modul...

Electrostatic Properties of Ions in Crystals from X-Ray Diffraction Data *

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Faraday Effect of BSO and BTO Crystals Doped with Cr , Mn and Cu

The influence of both photochromic doping and photochromic transitions on the effect of magnetooptical rotation (Farady effect FE) of undoped and doped with Cr, Mn and Cu Bi 12 SiO 20 (BSO) and Bi 12 TiO 20 (BTO) crystals is studied. The present results show, that Cr, Mn and Cu increase the FE. The influence of Cr, whose affect on the optical activity (OA) of BSO is most significant, here is to...