Abstract
Velocity shifts of surface acoustic waves (SAW) for lithium niobate due to homogeneous external static stress or an electric field are presented. Stress sensitivity is defined through six independent components of a second order symmetric tensor, and electric field sensitivity is a vector of three components. Maps for different cuts of LiNbO3 and different directions of SAW propagation have been computed. These maps can be used to find new cuts of lithium niobate, which has large or zero sensitivity either on the stress or the electric field. It could be useful for special applications of LiNbO3 substrate in a SAW devices technique.
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