A linear scaling law for predicting phase transition temperature via averaged effective electronegativity derived from A2M3O12-based compounds.The chemical flexibility of A2M3O12-based compounds enables the design of materials with versatile functionalities such as ferroelastic switching, ion conduction and negative thermal expansion (NTE) above the ferroelastic transition temperature (Tt), which is promising for a variety of applications.  Herein we propose a concept of averaged effective electronegativity (AEE) and establish a linear relationship between the Tt and AEE for A2M3O12-based compounds. 
A2M3O12
A linear scaling law for predicting phase transition temperature via averaged effective electronegativity derived from A2M3O12-based compounds.The chemical flexibility of A2M3O12-based compounds enables the design of materials with versatile functionalities such as ferroelastic switching, ion conduction and negative thermal expansion (NTE) above the ferroelastic transition temperature (Tt), which is promising for a variety of applications.  Herein we propose a concept of averaged effective electronegativity (AEE) and establish a linear relationship between the Tt and AEE for A2M3O12-based compounds. 
A2M3O12
Herein we propose a concept of averaged effective electronegativity (AEE) and establish a linear relationship between the Tt and AEE for A2M3O12-based compounds. 
AEE
A linear scaling law for predicting phase transition temperature via averaged effective electronegativity derived from A2M3O12-based compounds.The chemical flexibility of A2M3O12-based compounds enables the design of materials with versatile functionalities such as ferroelastic switching, ion conduction and negative thermal expansion (NTE) above the ferroelastic transition temperature (Tt), which is promising for a variety of applications.  Herein we propose a concept of averaged effective electronegativity (AEE) and establish a linear relationship between the Tt and AEE for A2M3O12-based compounds. 
A2M3O12
The linear scaling law is validated using first principles calculations of the effective charge on oxygen and its effectiveness is verified experimentally by designing high entropy compounds ScZrHfFeMoVO12 and a NTE compound Zr2MoVPO12 with expected Tt. 
ScZrHfFeMoVO12
The linear scaling law is validated using first principles calculations of the effective charge on oxygen and its effectiveness is verified experimentally by designing high entropy compounds ScZrHfFeMoVO12 and a NTE compound Zr2MoVPO12 with expected Tt. 
Zr2MoVPO12