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001 599613
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035 _a(RuTPU)RU\TPU\tpu\23717
035 _aRU\TPU\tpu\23614
090 _a599613
100 _a20130926a1988 k y0engy50 ba
101 1 _aeng
102 _aUS
200 1 _aPolaron jump conductivity in films of vitreous oxide semiconductors in an intense DC magnetic field
_fV. I. Kosintsev, V. I. Koltun
320 _aReferences: p. 1042 (17 tit.)
330 _aExperimental data on the field dependence of static conductivity of vitreous oxide semiconductors (VOS) based on V 2O 5 are analyzed. To describe the effects of an intense electric field a model is proposed which assumes localization of small radius polarons (SRP) by the Coulomb field of positively charged defect centers (the bound SRP model). Within the framework of this model an expression is obtained which defines the flux density of charge carriers (J) in an electric field of arbitrary intensity (F), which in the limit of an intense electric field leads to a linear dependence of ln J on F 1/2. With the parameters found for the model the calculated function J(F) agrees well with experimental dependences of current upon F for VOS films in the vanadium-borate system. The most probable nature of defect centers in the given materials is anion (oxygen) vacancies. The results obtained agree with a previous analysis of field dependence of low-frequency dielectric permittivity also based on the bound SRP model
333 _aВ фонде НТБ ТПУ отсутствует
461 _tSoviet Physics Journal
_d1965-1992
463 _tVol. 31, № 12
_vP. 1038-1042
_d1988
610 1 _aтруды учёных ТПУ
700 1 _aKosintsev
_bV. I.
_cChemical Engineer
_cconsulting professor, Doctor of technical sciences
_f1939-
_gVictor Ivanovich
_xTPU
_2stltpush
_3(RuTPU)RU\TPU\pers\31066
701 1 _aKoltun
_bV. I.
801 1 _aRU
_b63413507
_c20110727
801 2 _aRU
_b63413507
_c20130926
_gRCR
942 _cBK