Results 201 to 210 of about 5,476 (227)

Oxidation kinetics in SrTiO3 homoepitaxy on SrTiO3(001)

Applied Physics Letters, 2001
Using an oblique-incidence optical reflectivity difference technique, we investigated kinetic processes in SrTiO3 homoepitaxy on SrTiO3(001) under pulsed-laser deposition conditions. Depending upon growth temperature and oxygen ambient pressure, we found that the oxidation of an as-grown SrTiO3 monolayer may take a much longer time to complete than the
X. D. Zhu, Weidong Si, X. X. Xi, Qidu Jiang   +3 more
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Tuning the carrier density in SrTiO3/LaTiO3/SrTiO3 quantum wells

Applied Physics Letters, 2020
We discuss methods of built-in carrier density control in SrTiO3/LaTiO3/SrTiO3 heterostructures that exhibit quasi-two-dimensional carrier confinement in an interfacial quantum well. Unlike the electronically similar LaAlO3/SrTiO3 heterostructures, where the polar discontinuity at the interface defines the accumulated carrier density, the LaTiO3 ...
J. N. Lee, X. Hou, R. Takahashi, M. Lippmaa   +3 more
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Nonstoichiometry in SrTiO3

Journal of The Electrochemical Society, 1981
The defect chemistry of polycrystalline has been studied by means of the equilibrium electrical conductivity as a function of temperature, oxygen activity, Sr/Ti ratio, and impurity additions. Reduction, excess , and acceptor impurities all contribute to the oxygen vacancy content and their effects are therefore highly interdependent.
N. ‐H. Chan, R. K. Sharma, D. M. Smyth
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Dielectric investigations of solid solutions SrTiO3-KTaO3 and SrTiO3-KNbO3

Physics of the Solid State, 2014
The temperature dependences of the dielectric constant and dielectric hysteresis loops in ceramic samples of (1 − x)SrTiO3−x KNbO3 and (1 − x)SrTiO3−x KTaO3 (0 ≤ x ≤ 0.3) solid solutions prepared using different heat treatments have been investigated. Phase diagrams of the studied solid solutions have been constructed in
P. A. Markovin, V. V. Lemanov, M. E. Guzhva, P. P. Syrnikov, T. A. Shaplygina   +4 more
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Abnormal rectifying behavior of In/SrTiO3/SrTiO3 :Nb capacitor

Solid State Communications, 2008
Abstract In/SrTiO 3 /SrTiO 3 :Nb capacitors have been fabricated by depositing SrTiO 3 thin film on Nb-1 wt%-doped SrTiO 3 substrate and using In as the top electrode. The current–voltage characteristics were measured and backward rectifying characteristics are found below room temperature.
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Time-resolved photoluminescence in SrTiO3

Journal of Luminescence, 1984
SrTiO3 is an insulator with a band gap of 3,27 eV which shows evidence of strong electron-phonon interaction. Its luminescence spectra exhibits a broad band in the visible, apparently intrinsic in nature (1). Its transport properties reveal the existence of deep traps for holes (2) and small polaron behaviour has been observed for electrons in the ...
R. Leonelli, J. L. Brebner
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Resistive switching effect in SrTiO3−δ∕Nb-doped SrTiO3 heterojunction

Applied Physics Letters, 2007
The authors report on the fabrication and properties of SrTiO3−δ∕Nb-doped SrTiO3 heterojunctions. The current-voltage curves of these junctions show hysteresis and remarkable resistive switching behavior. Hysteresis was also observed in the capacitance-voltage curves of these junctions.
M. C. Ni, S. M. Guo, H. F. Tian, Y. G. Zhao, J. Q. Li   +4 more
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Effect of Al2O3 insertion on the electrical properties of SrTiO3 thin films: A comparison between Al2O3-doped SrTiO3 and SrTiO3/Al2O3/SrTiO3 sandwich structure

Materials Research Bulletin, 2015
Abstract The effect of Al 2 O 3 insertion on the electrical properties of SrTiO 3 films is systemically investigated in metal–insulator–metal (MIM) capacitor because SrTiO 3 films with a high dielectric constant generally suffer from high leakage current problem caused by grain boundaries and a narrow band gap.
Ji-Hoon Ahn, Ja-Yong Kim, Seong-Jun Jeong, Se-Hun Kwon   +3 more
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SrTiO3 by XPS

Surface Science Spectra, 1992
X-ray photoelectron spectroscopy measurements of the principal core levels, including the energy loss regions, for a SrTiO3(100) single crystal are presented.
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Improved electric property in SrTiO3–Bi2NiMnO6–SrTiO3 sandwich structural thin films

Superlattices and Microstructures, 2015
Abstract Bi 2 NiMnO 6 thin film was grown on Pt(1 1 1)/Ti/SiO 2 /Si(1 0 0) substrates with and without SrTiO 3 buffer layer by the chemical solution deposition method. Room temperature ferroelectric and leakage current characteristics were investigated.
T.F. Zhang, X.G. Tang, Q.X. Liu, Y.P. Jiang, J.L. Lai   +4 more
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