Phys.org — Semiconductors26 June 202626 June 2026

Novel crystal strategy delivers near-perfect zero thermal expansion from 11 K to 893 K

research physics semiconductor Semiconductor

Almost every material expands when heated. Well-known examples include railroad tracks and concrete roadways, which feature visible expansion gaps to accommodate this effect. However, thermal expansion poses a far more acute challenge for extremely precise technologies, such as lasers and semiconductor manufacturing equipment, where even minute dimensional changes can compromise precision.

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