Now showing items 1-10 of 469
Symmetry breaking and restoration in the ginzburg–landau model of nematic liquid crystals
In this paper we study qualitative properties of global minimizers of the Ginzburg-Landau energy which describes light-matter interaction in the theory of nematic liquid crystals near the Freedericksz transition. This model ...
Mirror symmetries in multiple diffraction patterns of face-centred cubic crystals
An instrument for combining x-ray multiple diffraction and x-ray topographic imaging for examining crystal microcrystallography and perfection
(Amer Inst PhysicsMelvilleEUA, 2009)
Wannier functions of a one-dimensional photonic crystal with inversion symmetry
(Iop Publishing Ltd, 2010-11-14)
The maximally localized magnetic and electric Wannier functions of a one-dimensional photonic crystal with inversion symmetry are investigated. The calculated Wannier functions are real and either symmetric or anti-symmetric ...
Multiple Quantum Wells for P T -Symmetric Phononic Crystals
(American Physical Society, 2016-11)
We demonstrate that the parity-time symmetry for sound is realized in laser-pumped multiple-quantum-well structures. Breaking of the parity-time symmetry for the phonons with wave vectors corresponding to the Bragg condition ...
Synthesis, characterization, structural refinement and optical absorption behavior of PbWO(4) powders
(Elsevier B.V., 2008-04-25)
The present paper describes the synthesis, characterization, structural refinement and optical absorption behavior of lead tungstate (PbWO(4)) powders obtained by the complex polymerization method heat treated at different ...
EPR study of local symmetry sites of Ce(3+) in Pb(1-x)Ce(x)A (A=S, Se, and Te)
(AMER PHYSICAL SOC, 2009)
The local site symmetry of Ce(3+) ions in the diluted magnetic semiconductors Pb(1-x)Ce(x)A (A=S, Se, and Te) has been investigated by electron-paramagnetic resonance (EPR). The experiments were carried out on single ...
SYMMETRY OF UNIAXIAL GLOBAL LANDAU-DE GENNES MINIMIZERS IN THE THEORY OF NEMATIC LIQUID CRYSTALS
(SIAM PUBLICATIONS, 2012)