However, the large mismatch of thermal expansion coefficient between LN and diamond is the major issue to cause the large stress in the deposited films.

• 不过，铌酸锂与钻石之间的热膨胀系数差异太大，造成很大的薄膜应力，很难直接将钻石薄膜沉积于铌酸锂基板上。