I-V curve of the electron flow generated during a pyroelectric effect in lithium tantalate single crystal in vacuum conditionsA. N. Oleinik, M. E. Gilts, P. V. Karataev, A. A. Klenin, A. S. Kubankin and P. G. ShapovalovEPL, 142 3 (2023) 34001DOI: https://doi.org/10.1209/0295-5075/accca6