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Protonic conduction in acceptor-doped KTaO/sub 3/ crystals

Technical Report ·
OSTI ID:6488160
; ;
Crystals of KTaO/sub 3/ doped with Cu/sup 2 +/, Fe/sup 3 +/ or Ni/sup 3 +/ can be charged with H/sup +/ by heating in water vapor. Such crystals then become protonic conductors with an activation energy for proton hopping of approx.1 eV. The isotope effect is studied by replacing H/sup +/ by D/sup +/. 10 refs., 5 figs.
Research Organization:
Columbia Univ., New York (USA). School of Mines; Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400; FG02-85ER45187
OSTI ID:
6488160
Report Number(s):
DOE/ER/45187-T2; ON: DE86001876
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
CHALCOGENIDES
DATA
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
MATERIALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
REFRACTORY METAL COMPOUNDS
TANTALUM COMPOUNDS
TANTALUM OXIDES
TRANSITION ELEMENT COMPOUNDS