scholarly journals Strain Effect in Epitaxial Oxide Heterostructures

Epitaxy ◽  
2018 ◽  
Author(s):  
Abhijit Biswas ◽  
Yoon Hee Jeong
Keyword(s):  
Strain Effect ◽  
Oxide Heterostructures ◽  
Epitaxial Oxide

scholarly journals Strain Engineering of Epitaxial Oxide Heterostructures Beyond Substrate Limitations

2019 ◽  
Author(s):  
Xiong Deng ◽  
Chao Chen ◽  
Deyang Chen ◽  
Xiangbin Cai ◽  
Chao Xu ◽  
...  
Keyword(s):  
Strain Engineering ◽  
Oxide Heterostructures ◽  
Epitaxial Oxide

scholarly journals Strain-induced creation and switching of anion vacancy layers in perovskite oxynitrides

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Takafumi Yamamoto ◽  
Akira Chikamatsu ◽  
Shunsaku Kitagawa ◽  
Nana Izumo ◽  
Shunsuke Yamashita ◽  
...  
Keyword(s):  
First Principles ◽  
Lattice Strain ◽  
Anion Vacancy ◽  
Perovskite Oxides ◽  
Strain Effect ◽  
First Principles Calculations ◽  
Ammonia Treatment ◽  
Oxide Heterostructures ◽  
Thin Film Oxides ◽  
Order Pattern

AbstractPerovskite oxides can host various anion-vacancy orders, which greatly change their properties, but the order pattern is still difficult to manipulate. Separately, lattice strain between thin film oxides and a substrate induces improved functions and novel states of matter, while little attention has been paid to changes in chemical composition. Here we combine these two aspects to achieve strain-induced creation and switching of anion-vacancy patterns in perovskite films. Epitaxial SrVO3 films are topochemically converted to anion-deficient oxynitrides by ammonia treatment, where the direction or periodicity of defect planes is altered depending on the substrate employed, unlike the known change in crystal orientation. First-principles calculations verified its biaxial strain effect. Like oxide heterostructures, the oxynitride has a superlattice of insulating and metallic blocks. Given the abundance of perovskite families, this study provides new opportunities to design superlattices by chemically modifying simple perovskite oxides with tunable anion-vacancy patterns through epitaxial lattice strain.

Progress Toward Viable Epitaxial Oxide Ferroelectric Waveguide Heterostructures on Gaas

1993 ◽  
Vol 310 ◽  
Author(s):  
D. K. Fork ◽  
J. J. Kingston ◽  
G. B. Anderson ◽  
E. J. Tarsa ◽  
J. S. Speck
Keyword(s):  
Lithium Niobate ◽  
Optical Waveguides ◽  
Critical Issue ◽  
Oxide Heterostructures ◽  
Thermally Induced ◽  
Cladding Layer ◽  
Gaas Substrates ◽  
Novel Approach ◽  
Waveguide Fabrication ◽  
Epitaxial Oxide

AbstractDiscoveries within the last two years have created possibilities for the fabrication of epitaxial oxide heterostructures on GaAs substrates. In particular, magnesium oxide, MgO, may have broad applications, including its use as a cladding layer in optical waveguides. This report expands upon earlier work by revealing additional epitaxial structures involving lithium niobate which have been grown. There are now five known variants of Z-lithium niobate on GaAs: direct Z-cut growth on GaAs (111)A or B, Z-cut growth on MgO (111)/GaAs (111)A or B, and Z-cut growth on MgO (111)/GaAs (001). Broad in-plane misalignment (about 15°) characterizes the latter structure, whereas the former posses a textural width of 3° to 5° in the plane. All structures contain internal boundaries resulting from 180° rotations about the Zaxis. A critical issue for any ferroelectric heterostructure is its integrity in the presence of thermally induced tensile strain. Approaches to the mitigation of thin fim fracture are discussed and a novel approach to strain relief via ridge waveguide fabrication is reported.

scholarly journals Strain-induced stabilization of new magnetic spinel structures in epitaxial oxide heterostructures

2007 ◽  
Vol 144 (1-3) ◽  
pp. 43-48 ◽  
Author(s):  
F. Rigato ◽  
S. Estradé ◽  
J. Arbiol ◽  
F. Peiró ◽  
U. Lüders ◽  
...  
Keyword(s):  
Oxide Heterostructures ◽  
Spinel Structures ◽  
Epitaxial Oxide

Capacitance-voltage modeling of metal-ferroelectric-semiconductor capacitors based on epitaxial oxide heterostructures

2011 ◽  
Vol 98 (10) ◽  
pp. 102901 ◽  
Author(s):  
Woong Choi ◽  
Sunkook Kim ◽  
Yong Wan Jin ◽  
Sang Yoon Lee ◽  
Timothy D. Sands
Keyword(s):  
Oxide Heterostructures ◽  
Capacitance Voltage ◽  
Epitaxial Oxide

scholarly journals Strain engineering of epitaxial oxide heterostructures beyond substrate limitations

Matter ◽  
2021 ◽  
Vol 4 (4) ◽  
pp. 1323-1334 ◽  
Author(s):  
Xiong Deng ◽  
Chao Chen ◽  
Deyang Chen ◽  
Xiangbin Cai ◽  
Xiaozhe Yin ◽  
...  
Keyword(s):  
Strain Engineering ◽  
Oxide Heterostructures ◽  
Epitaxial Oxide

Magnetic properties of epitaxial oxide heterostructures

2008 ◽  
Vol 145 (1-2) ◽  
pp. 18-22 ◽  
Author(s):  
S. Ramachandran ◽  
J.T. Prater ◽  
N. Sudhakar ◽  
D. Kumar ◽  
J. Narayan
Keyword(s):  
Magnetic Properties ◽  
Oxide Heterostructures ◽  
Epitaxial Oxide

scholarly journals Oscillatory Exchange Coupling and Positive Magnetoresistance in Epitaxial Oxide Heterostructures

2000 ◽  
Vol 85 (17) ◽  
pp. 3728-3731 ◽  
Author(s):  
K. R. Nikolaev ◽  
A. Yu. Dobin ◽  
I. N. Krivorotov ◽  
W. K. Cooley ◽  
A. Bhattacharya ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Oxide Heterostructures ◽  
Positive Magnetoresistance ◽  
Epitaxial Oxide

Effects of Fetus Weight, Dam Strain, Dam Weight, and Litter Size on the Craniofacial Morphogenesis of CL/Fr Mouse Fetuses Affected with Cleft Lip and Palate

1997 ◽  
Vol 34 (4) ◽  
pp. 325-330 ◽  
Author(s):  
Kazuaki Nonaka ◽  
Yasunori Sasaki ◽  
Yoshihisa Watanabe ◽  
Ken-ichi Yanagita ◽  
Minoru Nakata
Keyword(s):  
Litter Size ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Craniofacial Morphology ◽  
Strain Effect ◽  
Craniofacial Growth ◽  
Lateral Cephalogram ◽  
Mouse Fetus ◽  
Mouse Fetuses ◽  
Craniofacial Morphogenesis

Objective: This study examined the factors related to the morphogenesis of the craniofacial complex of the CL/Fr mouse fetus affected with CLP based on the findings of a lateral cephalogram. Design: Embryo transfer experiments were performed to determine the effect of the fetus weight, dam strain, dam weight, and litter size on the intra-uterine craniofacial morphogenesis of CL/Fr mouse fetuses. On the 18th gestational day, each pregnant dam that had received CL/Fr mouse embryos was laparotomized to remove the transferred fetuses that had developed in the uteri of the cleft lip and palate (CLP)-susceptible CL/Fr strain dam and the CLP-resistant C57BL strain dam. A cephalometric observation of the craniofacial morphology of each fetus was subsequently performed. Results: Based on a multiple regression analysis, the standardized partial regression coefficients of the affected fetus weight, the dam weight, and the litter size on the maxillary size of the affected CL/Fr fetus were 0.71 (p < .01), 0.03, and −0.07. According to a least-squares analysis of variance, the dam strain effect in addition to the effect of the affected fetus weight on the maxillary size and the cranial size of the affected fetuses was significant (p < .01 for cranial size, p < .05 for maxillary size) and close to a significant level (p = .09) for the mandibular size of the affected fetuses. The adjusted maxillary size and cranial size after statistically eliminating the effects of the affected fetus weight, dam weight, and lifter size on each original craniofacial size of the affected fetuses that had developed in the CL/Er dam strain were also significantly smaller than those of the affected fetuses that had developed in the C57BL dam strain. Conclusions: The present results indicate that the craniofacial growth of the CL/Fr mouse fetus affected with CLP increased in proportion to the fetus weight. The dam strain effect, in addition to the effect of the affected fetus weight, could thus not be ignored when the etiology of the spontaneous CLP was examined, while the uterine environment, provided by the CL/Fr strain dam, retarded the intra-uterine craniofacial growth of the affected fetuses. It was therefore concluded that the dam strain effect, as well as the effect of the affected fetus weight, both play an important role on the craniofacial morphogenesis of the CL/Fr strain of the affected fetuses that developed in both strain dams.

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