Energetically preferable structures for a series of lanthanides nitrides.

The crystalline structures are given in format standardised CIF, 
issued of DFT relaxations at the PBE level of theory. 

Structures are provided for compositions of the form: ABN3, 
where A is one of the fourteen lanthanide metal and B is either tungsten or rhenium. 

For further information, please see the corresponding publication 
for more details: https://iopscience.iop.org/article/10.1088/2515-7639/ab083e/meta