Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"interfacial strain"”.
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The role of phase transformation in the rate performance limited Lix̳ V₂ O₅ battery cathode
… end-member phases that would normally relax the interfacial strain associated with biphasic volumetric mismatch by forming incoherent phase boundaries, they reasoned, lead to the observed improvement in high-rate performance. A number of discrete structural and electrochemical signatures have …
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Structural and magnetic properties of erbium thin films and erbium/yttrium superlattices
… the data for the two systems, the effects of the interfacial strain and the artificial modulation on the magnetic behavior of the Er have been determined. Specifically, the imposed secondary periodicity in the superlattices does not cause an interruption of the modulated Er spin order at the Er/Y …
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Structural and magnetic properties of erbium thin films and Er/Y superlattices
… the data for the two systems, the effects of the interfacial strain and the artificial modulation on the magnetic behavior of the Er have been determined. Specifically, the imposed secondary periodicity in the superlattices does not cause an interuption of the modulated Er spin order at the Er /Y …
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Magnetoelectric Thin Film Heterostructures and Electric Field Manipulation of Magnetization
… couple via interface elastic strain, the various challenges associated with the lack of single-phase multiferroic materials can be overcome and the magnetoelectric (ME) coupling effect can be substantially enhanced. Compared with magnetic field-controlled electric phenomena …
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Superconductivity in oxygen doped iron telluride by molecular beam epitaxy
… XRD, transport, and STEM-EELS, and we found that interfacial strain is not an essential ingredient of superconductivity in this particular case. We investigated the doping conditions for two candidate oxygen doping modes: substitution and interstitial. We found that substitution occurs when the …
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Functionalization of Peptide Nucleic Acids via post-synthetic click chemistry
… Chapter 5 introduces a new method combining an interfacial strain-promoted azide-alkyne cycloaddition and post assembly deprotection (SPAAC-PAD) for the well-defined functionalization of small, water-soluble gold nanoparticles with oligopeptides. This approach will enable the fabrication of gold …
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Experimental and Numerical Investigations on the Durability and Fracture Mechanics of the Bonded Systems for Microelectronics Application
… interface was measured as a function of applied strain energy release rate, G, and temperature using a wedge test geometry. The specimens consist of two glass plates bonded with a thin layer of proprietary epoxy adhesive. The crack fronts along the epoxy/glass interfaces were measured using an …
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Probing nano-scale atomic and electronic structures of iron-based superconductors
… Epitaxial Fe1+yTe thin-films with sharp 1-2 interfacial layers grown by molecular beam epitaxy (MBE) on LaAlO3 become superconducting when exposed to oxygen after growth at elevated sample temperatures. The interfacial strain caused by lattice mismatch is not detected in the thin-film. …
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Internal atomic-scale structure and photothermal dynamics of heterostructured nanomaterials
… with small lattice mismatch. Instead, the large interfacial strain between Cd𝑥Zn1−𝑥Te (𝑥 = 0.8) and pure-phase CdSe leads to the growth of islands on the QD surface. Our results corroborate the challenges associated with the synthesis of Zn/Cd chalcogenide type-II heterostructures due to facile …
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Organometallic Functionalization of 2D Nanomaterials for Energy and Medical Applications
… applications, this work explores graphene as an interfacial transducer for biological systems, focusing on its interaction with human skin tissue samples associated with basal cell carcinoma and squamous cell carcinoma. By monitoring changes in graphene’s Raman spectral features upon contact with …
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Novel structures for lattice-mismatched infrared photodetectors
Using the interfacial misfit (IMF) array growth mode, GaSb p-i-n diodes were grown on Si and GaAs lattice-mismatched substrates by molecular beam epitaxy (MBE) under optimised growth conditions. For the sample grown on Si, an AlSb nucleation layer was used to reduce the occurrence of twinning …