Polarization and Dipole Moments of Manganese-Modified Potassium Sodium Strontium Barium Niobate Crystals

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概要

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• The crystal growth, the ferroelectric hysteresis loops, and the infrared reflectivity spectra of manganese-modified potassium sodium strontium barium niobate (KNSBN) single crystals are reported. Compared with the undoped KNSBN crystals, the manganese-modified crystals have stable hysteresis loops, whose spontaneous polarization is about 0.18 C/m^2 and coercive field strength is about 600 V/mm, but those of the undoped KNSBN crystals are about 0.04 C/m^2 and 530 V/mm, respectivery. The experimental results of the infrared reflectivity spectra show that the infrared reflectivities vary as the orientations of the dipole moments. The c-axis becomes the stablest orientation of the dipole moments owing to the manganese doping, and the polarization will be locked and not recede if the manganese-modified crystals are polarized into mono-domain.

• 社団法人応用物理学会の論文
• 1997-04-15

著者

• Wang C.

  Department Of Mathematics And Medhanical Engineering Michigan State University

• XIA H.

  Department of Paediatric Surgery, Christchurch Hospital

• Chen H.

  Institute Of Crystal Materials Shandong University

• YU H.

  Experimental Centre, Shandong University

• WANG M.

  Institute of Crystal Materials, Shandong University

• Wang C.

  Department Of Chemistry Tamkang University

• Xia H.R.

  Department of Physics, Shandong University

• Wang C.J.

  Department of Physics, Shandong University

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