DC and AC Conductivity of Barium Hydrogen Phosphate (BaHPO 4 ) | Zendy

Trivedi T.R. | Zendy; Oza A.T. | Zendy; Patel V.A. | Zendy; Arora S.K. | Zendy

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DC and AC Conductivity of Barium Hydrogen Phosphate (BaHPO 4 )

Author(s) -

Trivedi T.R.,

Oza A.T.,

Patel V.A.,

Arora S.K.

Publication year - 2000

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/1521-4079(200005)35:5<615::aid-crat615>3.0.co;2-5

Subject(s) - barium , conductivity , thermal conduction , dielectric , condensed matter physics , electrical resistivity and conductivity , semiconductor , hydrogen , ion , materials science , chemistry , ferroelectricity , exponential function , analytical chemistry (journal) , inorganic chemistry , physics , optoelectronics , mathematical analysis , mathematics , organic chemistry , chromatography , quantum mechanics , composite material

D.C. conductivity of the ferroelectric BaHPO 4 is measured and is found to lie between usual conductivities of semiconductor and insulator. Its temperature dependence shows intrinsic conduction in defective crystals due to H + ions. The a.c. conductivity calculated from the measured dielectric constant follows σ˜ω 1.54 , a power law. Frequency of 20 kHz resolves the resistivity peak of a.c. conduction into two Gaussians. The ln sigma vs f plots at different temperatures show an exponential dependence and existence of a focal point.

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