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Graded Interface Models For More Accurate Determination Of Van Der Waals-London Dispersion Interactions Across Grain Boundaries, Roger H. French
Graded Interface Models For More Accurate Determination Of Van Der Waals-London Dispersion Interactions Across Grain Boundaries, Roger H. French
Faculty Scholarship
Attractive van der Waals–London dispersion interactions between two half crystals arise from local physical property gradients within the interface layer separating the crystals. Hamaker coefficients and London dispersion energies were quantitatively determined for Σ5 and near-∑13 grain boundaries in SrTiO3 by analysis of spatially resolved valence electron energy-loss spectroscopy (VEELS) data. From the experimental data, local complex dielectric functions were determined, from which optical properties can be locally analyzed. Both local electronic structures and optical properties revealed gradients within the grain boundary cores of both investigated interfaces. The results show that even in the presence of atomically structured grain boundary …
Nonadditivity In Van Der Waals Interactions Within Multilayers, Roger H. French
Nonadditivity In Van Der Waals Interactions Within Multilayers, Roger H. French
Faculty Scholarship
Working at the macroscopic continuum level, we investigate effective van der Waals interactions between two layers within a multilayer assembly. By comparing the pair interactions between two layers with effective pair interactions within an assembly we assess the significant consequences of nonadditivity of van der Waals interactions. This allows us to evaluate the best numerical estimate to date for the Hamaker coefficient of van der Waals interactions in lipid-water multilamellar systems.
The Ecological Life: Discovering Citizenship And A Sense Of Humanity, Jeremy Bendik-Keymer
The Ecological Life: Discovering Citizenship And A Sense Of Humanity, Jeremy Bendik-Keymer
Faculty Scholarship
Written as a series of lectures, The Ecological Life offers a humanistic perspective on environmental philosophy that challenges some of the dogmas of deep ecology and radical environmentalism while speaking for their best desires. The book argues that being human-centered leaves us open to ecological identifications, rather than the opposite. Bendik-Keymer draws on analytic and continental traditions of philosophy as well as literature and visual media. He argues for a sense of ecological justice consonant with human rights, and shows how humanistic thinking is committed to deepening respect for life and our ecological orientation. In a clear, jargon-free and conversational …