Publication Date
2-1-2025
Abstract
Most information about the world comes from sensors -- and from the results of processing sensor data. In many practical situations -- e.g., in biomedical applications -- it is desirable to make sure that the sensors are as "invisible" as possible, in particular, that they are as small as possible. One way to achieve such small size is to use ultrathin-layer materials such as graphene. It is known that for such materials, strain causes electromagnetic effects -- which can be used to detect small strains. Interestingly, it turned out that the same equation describes the relation between strain and electric effects and between strain and magnetic effects -- although in these two cases, physics is somewhat different. The fact that we get the same equation in two different physical situations leads to a natural conjecture that this equation should follow from first principles, without the need to use specific physical equations. In this paper, we show that this is indeed the case: one of the main equations of straintronics can be derived from first principles, without using specific equations of physics.
Comments
Technical Report: UTEP-CS-25-4