Straintronics (from ''strain'' and ''electronics'') is the study of how folds and mechanically induced stresses in a layer of two-dimensional materials can change their electrical properties. It is distinct from

twistronics Twistronics (from ''twist'' and ''electronics'') is the study of how the angle (the twist) between layers of two-dimensional materials can change their electrical properties. Materials such as bilayer graphene have been shown to have vastly differ ...

in that the latter involves changes in the angle between two layers of 2D material. However, in such multi-layers if strain is applied to only one layers, which is called

heterostrain The term heterostrain was proposed in 2018 in the context of materials science to simplify the designation of possible strain situations in van der Waals heterostructures where two (or more) two-dimensional materials are stacked on top of each ot ...

, strain can have similar effect as twist in changing electronic properties.{{Cite journal , last1=Mesple , first1=Florie , last2=Missaoui , first2=Ahmed , last3=Cea , first3=Tommaso , last4=Huder , first4=Loic , last5=Guinea , first5=Francisco , last6=Trambly de Laissardière , first6=Guy , last7=Chapelier , first7=Claude , last8=Renard , first8=Vincent T. , date=2021-09-17 , title=Heterostrain Determines Flat Bands in Magic-Angle Twisted Graphene Layers , url=https://link.aps.org/doi/10.1103/PhysRevLett.127.126405 , journal=Physical Review Letters , volume=127 , issue=12 , pages=126405 , doi=10.1103/PhysRevLett.127.126405, pmid=34597066 , arxiv=2012.02475 , bibcode=2021PhRvL.127l6405M , s2cid=227305789 It is also distinct from, but similar to, the piezoelectric effects which are created by bending, twisting, or squeezing of certain material.

References

Emerging technologies Superconductivity