Growth and properties of Nb- or Sn-doped KTiOPO4 crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Single crystals of potassium titanyl phosphate, KTiOPO4, doped with Nb or Sn to various doping levels are grown by crystallization from flux. Their atomic structure and physical properties are studied. It is found that both dopants greatly affect the configuration of titanium-oxygen polyhedra and, hence, the ferroelectric and nonlinear optical properties of the crystals. Superionic transitions with abrupt changes in electrical conductivity are observed in some crystals for the first time. (C) 2002 MAIK "Nauka/Interperiodica".