Open AccessThe study on the rectifying properties of oxygen non-stoichiometric La0.9Ba0.1MnO3-δ/SrTiO3:Nb p-n heterojunction
Author(s) -
Chong Wang,
Zhaolin Liu,
Junming Liu,
Xuemei Chen,
Cui Hao-Yang,
Chao Xia,
Yan Yu,
Lu Wei
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.502
Subject(s) - materials science , heterojunction , pulsed laser deposition , stoichiometry , thin film , oxygen , substrate (aquarium) , atmospheric temperature range , optoelectronics , condensed matter physics , nanotechnology , chemistry , thermodynamics , oceanography , physics , organic chemistry , geology
The La0.9Ba0.1MnO3-δ/SrTiO3:Nb p-n heterojunctions have been fabricated by growing the oxygen nonstoichiometric La0.9Ba0.1MnO3-δ thin film on the Nb doped SrTiO3 substrate with pulsed laser deposition. The good rectifying curves have been demonstrated in the temperature range of 20—300K. The diffusion voltage VD exhibits a maximum near the transition temperature of La0.9Ba0.1MnO3-δ thin film, which is different to the observation in the oxygen stoichiometric La0.9Ba0.1MnO3/SrTiO3:Nb p-n heterojunction. The interesting phenomenon has been well explained with the resistance-temperature experiment of La0.9Ba0.1MnO3-δ thin film and energy band calculations.