Giant conductivity switching of LaAlO3/SrTiO3 heterointerfaces governed by surface protonation

Autor: Keith A. Brown, Shu He, Daniel J. Eichelsdoerfer, Mengchen Huang, Ishan Levy, Hyungwoo Lee, Sangwoo Ryu, Patrick Irvin, Jose Mendez-Arroyo, Chang-Beom Eom, Chad A. Mirkin, Jeremy Levy

Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)

The interface between two oxide materials can play host to numerous exotic phenomenon. Here, the authors observe a four order of magnitude change in the conductance at a lanthanum-aluminate–strontium-titanate interface controlled by surface protona

Externí odkaz: https://doaj.org/article/da5e117dd6324c68ae860c5697fc865f

Adams-type maps are not stable under composition

Autor: Robert Burklund, Ishan Levy, Piotr Pstragowski

Publikováno v: Burklund, R, Levy, I & Pstragowski, P 2022, ' Adams-type maps are not stable under composition ', Proceedings of the American Mathematical Society, Series B, vol. 9, pp. 373-376 . https://doi.org/10.1090/bproc/137

We give a simple counterexample to the plausible conjecture that Adams-type maps of ring spectra are stable under composition. We then show that over a field, this failure is quite extreme, as any map of $\mathbb{E}_{\infty}$-algebras is a transfinit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d61441f82a551803d9537fd3e7e8c9c