For first-order phase transitions, the second derivatives of Gibbs free energy diverge at the transition point, causing super-elasticity or super-thermicity. Here authors report a chemical analogy of these effects by atomic doping, where the second derivative of Gibbs free energy diverges at the transition point, leading to an anomalously high energy barrier for dopant diffusion in coexisting phases.
- Yuhang Cai
- Zhaowu Wang
- Junqiao Wu
