Anharmonicity and Coulomb pseudopotential effects on superconductivity in YH${}_6$ and YH${}_9$

Yucheng Ding, Haoran Chen, Junren Shi

Anharmonic effects are widely believed to be the primary cause of the overestimation of superconducting transition temperatures of yttrium hydrides YH${}_6$ and YH${}_9$ in theoretical…