Cavity-mediated stationary atom-mirror entanglement in the presence of photothermal effects

► We study atom-optomechanical systems strongly coupled through photothermal effects. ► The photothermal force can enhance atom-mirror entanglement in such systems. ► Robustness of the entanglement against temperature improves by photothermal force. ► The stationary tripartite entanglement is affected by the photothermal force.