Is LiCoPO4 a pyroelectric

The acoustoelectric transformation in single-crystal LiCoPO4 is studied. At temperatures corresponding to the paramagnetic phase, a piezoresponse to longitudinal elastic deformation parallel to the crystallographic a axis is observed. Arguments are introduced in support of identifying this compound as pyroelectric, as opposed to the generally accepted viewpoint which assigns it to the class of centrally symmetric crystals. Published by AIP Publishing.