High gauge factor in cold-rolled HfTa and HfTaTi refractory alloys for strain sensingIlia Evdokimov, Roman Ryltsev, Evgenii Sterkhov, Viktor Bykov and Vladimir SidorovEur. Phys. J. Spec. Top., (2026) 1-11DOI: https://doi.org/10.1140/epjs/s11734-025-02115-8